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Ideate Innovate Create
The document discusses ideas and how to share them. It contains a quote from Simon Sinek stating that ideas are free and should be taken, shared, and brought to life. The document focuses on the value of sharing ideas with others.
Drift flux
The drift flux model is applicable to two-phase flows like gas-liquid flows and fluidized beds. It accounts for the relative velocity between phases using the concept of drift flux. The model equations can be solved graphically or numerically to obtain void fraction and drift velocity for different flow regimes like cocurrent, countercurrent flows. Correlations are provided to estimate drift velocity and void profile parameter based on flow conditions.
Akash
The Akash missile is a medium-range surface-to-air missile developed by India to target aircraft up to 30 km away and altitudes up to 18,000 m. It has a range of 30 km, flies at supersonic speeds of Mach 2.5, and can be launched from both tracked and wheeled platforms. The Akash missile system consists of self-propelled launchers, tracking radars, and a command center, and it has been deployed by the Indian Air Force and Army for air defense.
Surface to air missile akash slide share
Akash ... First in the series of Know about "India Defence System"
" Akash tested successfully on 24rth May 2012"
For detailed presentation, mail us at whh@raggedminds.com
Regards
Team RaggedMinds
Missile technology
The document discusses missile technology, providing definitions and describing the basic parts of missiles including guidance, flight systems, engines, and warheads. It explains the principles of tracking, guidance, and flight for different types of missile engines. The document also describes different types of missiles and their specifications, including air-to-air, air-to-ground, surface-to-air, and ballistic missiles. It discusses various guidance systems used in missiles like inertial navigation systems, terrain contour matching, and global positioning satellites. Active homing, passive homing and semi-active homing guidance methods are also summarized.
Introduction of indian defence
India has developed a comprehensive range of missile systems for defense purposes. The missile programs are managed by the Defence Research and Development Organisation (DRDO) and include short-range missiles like Prithvi, intermediate-range missiles like Agni, the BrahMos cruise missile, anti-tank missiles, surface-to-air missiles, and submarine-launched ballistic missiles. India is also developing an anti-ballistic missile defense system to intercept incoming missiles to provide protection from attacks.
PPT ON GUIDED MISSILES
This document provides an overview of missiles and their components. It discusses the history of missiles beginning with rockets invented in medieval China. Modern Indian missiles are then discussed, highlighting programs like Agni and Prithvi. The key components of missiles are described as the warhead, guidance system, propulsion, and fins. Common guidance methods include laser, infrared homing and GPS. Propulsion systems can include turbojets, ramjets and pulsejets. In summary, the document provides a high-level history and technical overview of missiles and their components.
Boat trailure winch bolt failure
a lot of bolts were received with an incorrect certificate of compliance , field failures were numerous
Recommended
Ideate Innovate Create
The document discusses ideas and how to share them. It contains a quote from Simon Sinek stating that ideas are free and should be taken, shared, and brought to life. The document focuses on the value of sharing ideas with others.
Drift flux
The drift flux model is applicable to two-phase flows like gas-liquid flows and fluidized beds. It accounts for the relative velocity between phases using the concept of drift flux. The model equations can be solved graphically or numerically to obtain void fraction and drift velocity for different flow regimes like cocurrent, countercurrent flows. Correlations are provided to estimate drift velocity and void profile parameter based on flow conditions.
Akash
The Akash missile is a medium-range surface-to-air missile developed by India to target aircraft up to 30 km away and altitudes up to 18,000 m. It has a range of 30 km, flies at supersonic speeds of Mach 2.5, and can be launched from both tracked and wheeled platforms. The Akash missile system consists of self-propelled launchers, tracking radars, and a command center, and it has been deployed by the Indian Air Force and Army for air defense.
Surface to air missile akash slide share
Akash ... First in the series of Know about "India Defence System"
" Akash tested successfully on 24rth May 2012"
For detailed presentation, mail us at whh@raggedminds.com
Regards
Team RaggedMinds
Missile technology
The document discusses missile technology, providing definitions and describing the basic parts of missiles including guidance, flight systems, engines, and warheads. It explains the principles of tracking, guidance, and flight for different types of missile engines. The document also describes different types of missiles and their specifications, including air-to-air, air-to-ground, surface-to-air, and ballistic missiles. It discusses various guidance systems used in missiles like inertial navigation systems, terrain contour matching, and global positioning satellites. Active homing, passive homing and semi-active homing guidance methods are also summarized.
Introduction of indian defence
India has developed a comprehensive range of missile systems for defense purposes. The missile programs are managed by the Defence Research and Development Organisation (DRDO) and include short-range missiles like Prithvi, intermediate-range missiles like Agni, the BrahMos cruise missile, anti-tank missiles, surface-to-air missiles, and submarine-launched ballistic missiles. India is also developing an anti-ballistic missile defense system to intercept incoming missiles to provide protection from attacks.
PPT ON GUIDED MISSILES
This document provides an overview of missiles and their components. It discusses the history of missiles beginning with rockets invented in medieval China. Modern Indian missiles are then discussed, highlighting programs like Agni and Prithvi. The key components of missiles are described as the warhead, guidance system, propulsion, and fins. Common guidance methods include laser, infrared homing and GPS. Propulsion systems can include turbojets, ramjets and pulsejets. In summary, the document provides a high-level history and technical overview of missiles and their components.
Boat trailure winch bolt failure
a lot of bolts were received with an incorrect certificate of compliance , field failures were numerous
Bow thruster collision
This document is a damage stress analysis report for a bow thruster assembly that was involved in an underwater collision. It summarizes the solidworks model of the assembly, details an FEA mesh and collision simulation with a rocky bottom, and analyzes the maximum stresses on the struts. Resonant frequency analyses were also conducted, identifying three vibration modes that could lead to propeller blade flutter or collisions with the cowling. The conclusions recommend strengthening the support struts and performing qualification testing over the full speed range.
Cross axis vibration
This document discusses vibration testing of equipment and whether cross-axis motion during testing is significant. It notes that vibration tests are usually done in three perpendicular axes but that overturning moments can cause responses in axes perpendicular to the one being excited. Modal analysis and vibration testing of a laser electronics assembly showed that cross-axis responses could be a significant fraction of the in-line responses, with quality factors ranging from 4 to 58. The conclusions are that orthogonal vibration testing does not guarantee orthogonal peak responses and that fatigue calculations should include all axial responses.
Ceramic cavity resonator
This document summarizes the assembly process for a ceramic microwave resonator cavity using a shrink fit technique. Key steps include heating the aluminum housing to expand it, inserting the ceramic puck using an alignment fixture, and allowing the assembly to cool which causes the housing to contract around the puck, holding it firmly in place through compression. Finite element analysis confirms the ceramic is held safely in compression while the housing experiences some permanent plastic deformation within its yield strength to form an interference fit.
Shock sensitive components mythology
This document discusses myths and best practices for packaging shock sensitive electronic components. It notes that shock levels measured in G units for components do not necessarily translate to the same exposure levels for those components when mounted in a system. The document recommends establishing system-level shock requirements, obtaining component shock specifications, designing mounts, and using modeling to calculate dynamic response of components in a system. It provides an example where modeling showed a crystal oscillator experienced 70Gs of shock in a system designed for a 50G specification, due to mounting factors. It concludes systems have many dynamic factors that influence component-level responses to shock.
TQFP HALT testing stress analysis
The document analyzes the potential for lead cracking in a TQFP32 package under vibration testing. A Solidworks simulation modeled the package and circuit board to determine major resonances and peak lead stresses. The simulation found a package resonance at 50kHz from lead frame and package bending. HALT testing was predicted to induce a peak lead stress of 65,000 psi, above the copper alloy's endurance limit of 20,000 psi, indicating a potential for fatigue cracking in the leads from the hammer blows.
Flex coupling stress analysis
A flexible coupling for torque transmission between misaligned shafts is proposed. Finite element stress analysis was used to estimate the life of a 0.2-0.3 inch coupling made of mild alloy steel with a 0.01 inch helical cut to manage shaft misalignment. The analysis applied torque loading and misalignment conditions to determine the stress loading and distortion over the expected range of service life.
Graphics card resonances
This document discusses how to increase the natural frequency of a graphics card assembly to reduce vibration. It shows that doubling the weight by adding a stiff heatsink that also provides cooling doubled the natural frequency. The goals are to increase stiffness and decrease mass to raise the ratio of stiffness to mass. A base graphics card had a frequency of 16hz, adding a retention bracket raised it to 18hz, and incorporating an aluminum heatsink and fans increased the frequency to 32hz while doubling the weight.
Stiffening of a shock lab test chassis
A document summarizes the testing of a lightweight chassis to reduce shock pulse deflection. The baseline perforated steel design resulted in a deflection of 9.46E-04 inches. Modifying the critical instrument mounting plate to be non-perforated reduced the deflection to 9.57E-05 inches, a 10 times reduction. Stress on the modified design was well below the yield point, indicating no damage is expected.
Cordwood electronic packaging
This document discusses cordwood discrete component electronic packaging used in the 1950s-1960s. Cordwood modules involved stacking electronic components vertically in a cylindrical housing using insulating standoffs, allowing for high packaging density. Early implementations like guidance electronics in missiles had very short service lives due to high vibration levels from tactical use. Modifications like adding mounting feet and spacers could significantly increase the first modal frequency and reduce stresses, resulting in an estimated service life of over 175 hours for applications like tactical jet fighters.
Drill bit life calculation
slightly damaged 3/8 drill bit wobbles about .003 inches
what is the estimated life before fracture?
Barrel stress in a 12lb Napoleonic cannon
FEA used to calculate stress and deflection in a field artillery piece used by Napoleon and in the US civil war
Highway wind damage
A finite element analysis was conducted to simulate the effects of Category 5 hurricane winds on a highway sign. The 3D solidworks model represented the steel construction and bolted connections to concrete supports. The FEA mesh and 200 mph steady wind loading predicted over 2 inches of permanent deformation and stress exceeding the steel yield point near the base of vertical supports, indicating failure. More advanced dynamic analysis was recommended to predict vibration from wind turbulence.
Fan blade resonances
This document summarizes a finite element analysis of a 10-blade plastic fan design for JK Locowitz Aero Ltd. The analysis found the first resonance mode of the fan blades at 672.99 Hz, corresponding to a fan speed of around 42,000 RPM, well above the target design speed of 7,000 RPM. While there is a very low risk of resonance at the target speed, the document recommends initial prototypes be tested up to 10,000 RPM to establish a safety margin.
Lap shear bolted plates
This document summarizes a study on bolt failures in a heavy steel lap shear joint. The goals were to evaluate grade 5 bolts currently in use, demonstrate sequential bolt failure, determine maximum load capacity, and calculate a safety factor for a heavy lift rigging fixture. Testing of an assembly with 8 bolts found failures at 2 bolts and 6000 lbs of load. Testing of an assembly with 6 bolts found failures at 4 bolts and 6000 lbs of load, indicating complete failure would occur at 3 tons of load. The document recommends stamping the plates with a maximum 1.5 ton load and changing to higher strength Grade 8 bolts to increase the bolt safety factor of 1.2 to an acceptable 1.5.
Santa maria revisited with fea
The document discusses using finite element simulation to model the structural design of the Santa Maria's wooden hull and frames. It details creating a CAD model from historical plans, meshing frame section #25, and running simulations applying 2 tons of lateral loading. The simulation found the oak frame experienced maximum stress of 7100 psi and deformation of 0.040 inches, while aluminum and steel alternatives had higher strengths but also higher weights. The conclusion is that modern metals provide significant design strength margins but at a large penalty in increased weight for this hull component.
Dual level vibe isolation
The document describes a dual-level vibration isolation system designed to increase noise isolation for an RF electronics assembly. It aims to provide a low-cost solution that can be introduced into forward production to enhance electrical performance. Simulation results show the system uses a 2 degrees of freedom design with two levels of isolation via rubber chassis isolators and rubber grommet isolators. Frequency response plots indicate peak isolations of 135 Hz and 65 Hz across three input axes.
Automotive CV joint rubber boot stress analysis
The document describes a nonlinear finite element analysis of an automotive CV joint rubber boot. The analysis used Solidworks Simulation 2017 to model the rubber material's incompressible behavior and applied torsion and tension loads. The 150,000 degree of freedom mesh predicted a maximum stress of 5,500 psi and deformation of 0.095 inch, exceeding the material's 3,000 psi tensile strength and indicating local tearing failure.
Engine compression ratio study
The document analyzes the stress on piston and connecting rod components from increasing the compression ratio on a small block V8 engine from 9:1 to 11:1. Finite element analysis showed that at a 9:1 ratio the maximum stress was 45,810 psi, while an 11:1 ratio would cause maximum stress of 105,400 psi, below the alloy steel safety factor of 90,000 psi. The conclusion is that increasing the ratio to 11:1 would likely cause cracking and failure of the connecting rod.
Nonlinear FEA analysis Rubber gasket
This document summarizes the nonlinear finite element analysis of a silicone rubber gasket conducted using Solidworks Simulation 2015. The analysis used nonlinear material properties and geometric nonlinearity to model the incompressible and bulging behavior of rubber under compression. The model was meshed and subjected to a 0.035 inch displacement in the -Z direction. The results showed a maximum displacement including sliding and buckling, and a maximum stress of 234 psi, which is below the material strength of 700-800 psi. Revision A changed the material to a 70 durometer silicone rubber.
Crack stopper in metal parts
The document discusses how drilled "crack stopper" holes can reduce stress concentrations at crack tips in structural parts and delay fatigue failure. It explains that drilling a hole at the crack tip changes the stress pattern, which FEA analysis shows is effective. As a case study, FEA models of a simple steel bar under tension and torsion loading were analyzed. The results found that a drilled crack stopper hole reduced maximum stress at the crack tip by 94.6% under tension and 25.4% under torsion, demonstrating how the technique can increase fatigue life.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
一比一原版(USF毕业证)旧金山大学毕业证如何办理
原件一模一样【微信：95270640】【旧金山大学毕业证USF学位证成绩单】【微信：95270640】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：95270640】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：95270640】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：95270640】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理旧金山大学毕业证USF学位证毕业证学位证【微信：95270640 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
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Bow thruster collision
This document is a damage stress analysis report for a bow thruster assembly that was involved in an underwater collision. It summarizes the solidworks model of the assembly, details an FEA mesh and collision simulation with a rocky bottom, and analyzes the maximum stresses on the struts. Resonant frequency analyses were also conducted, identifying three vibration modes that could lead to propeller blade flutter or collisions with the cowling. The conclusions recommend strengthening the support struts and performing qualification testing over the full speed range.
Cross axis vibration
This document discusses vibration testing of equipment and whether cross-axis motion during testing is significant. It notes that vibration tests are usually done in three perpendicular axes but that overturning moments can cause responses in axes perpendicular to the one being excited. Modal analysis and vibration testing of a laser electronics assembly showed that cross-axis responses could be a significant fraction of the in-line responses, with quality factors ranging from 4 to 58. The conclusions are that orthogonal vibration testing does not guarantee orthogonal peak responses and that fatigue calculations should include all axial responses.
Ceramic cavity resonator
This document summarizes the assembly process for a ceramic microwave resonator cavity using a shrink fit technique. Key steps include heating the aluminum housing to expand it, inserting the ceramic puck using an alignment fixture, and allowing the assembly to cool which causes the housing to contract around the puck, holding it firmly in place through compression. Finite element analysis confirms the ceramic is held safely in compression while the housing experiences some permanent plastic deformation within its yield strength to form an interference fit.
Shock sensitive components mythology
This document discusses myths and best practices for packaging shock sensitive electronic components. It notes that shock levels measured in G units for components do not necessarily translate to the same exposure levels for those components when mounted in a system. The document recommends establishing system-level shock requirements, obtaining component shock specifications, designing mounts, and using modeling to calculate dynamic response of components in a system. It provides an example where modeling showed a crystal oscillator experienced 70Gs of shock in a system designed for a 50G specification, due to mounting factors. It concludes systems have many dynamic factors that influence component-level responses to shock.
TQFP HALT testing stress analysis
The document analyzes the potential for lead cracking in a TQFP32 package under vibration testing. A Solidworks simulation modeled the package and circuit board to determine major resonances and peak lead stresses. The simulation found a package resonance at 50kHz from lead frame and package bending. HALT testing was predicted to induce a peak lead stress of 65,000 psi, above the copper alloy's endurance limit of 20,000 psi, indicating a potential for fatigue cracking in the leads from the hammer blows.
Flex coupling stress analysis
A flexible coupling for torque transmission between misaligned shafts is proposed. Finite element stress analysis was used to estimate the life of a 0.2-0.3 inch coupling made of mild alloy steel with a 0.01 inch helical cut to manage shaft misalignment. The analysis applied torque loading and misalignment conditions to determine the stress loading and distortion over the expected range of service life.
Graphics card resonances
This document discusses how to increase the natural frequency of a graphics card assembly to reduce vibration. It shows that doubling the weight by adding a stiff heatsink that also provides cooling doubled the natural frequency. The goals are to increase stiffness and decrease mass to raise the ratio of stiffness to mass. A base graphics card had a frequency of 16hz, adding a retention bracket raised it to 18hz, and incorporating an aluminum heatsink and fans increased the frequency to 32hz while doubling the weight.
Stiffening of a shock lab test chassis
A document summarizes the testing of a lightweight chassis to reduce shock pulse deflection. The baseline perforated steel design resulted in a deflection of 9.46E-04 inches. Modifying the critical instrument mounting plate to be non-perforated reduced the deflection to 9.57E-05 inches, a 10 times reduction. Stress on the modified design was well below the yield point, indicating no damage is expected.
Cordwood electronic packaging
This document discusses cordwood discrete component electronic packaging used in the 1950s-1960s. Cordwood modules involved stacking electronic components vertically in a cylindrical housing using insulating standoffs, allowing for high packaging density. Early implementations like guidance electronics in missiles had very short service lives due to high vibration levels from tactical use. Modifications like adding mounting feet and spacers could significantly increase the first modal frequency and reduce stresses, resulting in an estimated service life of over 175 hours for applications like tactical jet fighters.
Drill bit life calculation
slightly damaged 3/8 drill bit wobbles about .003 inches
what is the estimated life before fracture?
Barrel stress in a 12lb Napoleonic cannon
FEA used to calculate stress and deflection in a field artillery piece used by Napoleon and in the US civil war
Highway wind damage
A finite element analysis was conducted to simulate the effects of Category 5 hurricane winds on a highway sign. The 3D solidworks model represented the steel construction and bolted connections to concrete supports. The FEA mesh and 200 mph steady wind loading predicted over 2 inches of permanent deformation and stress exceeding the steel yield point near the base of vertical supports, indicating failure. More advanced dynamic analysis was recommended to predict vibration from wind turbulence.
Fan blade resonances
This document summarizes a finite element analysis of a 10-blade plastic fan design for JK Locowitz Aero Ltd. The analysis found the first resonance mode of the fan blades at 672.99 Hz, corresponding to a fan speed of around 42,000 RPM, well above the target design speed of 7,000 RPM. While there is a very low risk of resonance at the target speed, the document recommends initial prototypes be tested up to 10,000 RPM to establish a safety margin.
Lap shear bolted plates
This document summarizes a study on bolt failures in a heavy steel lap shear joint. The goals were to evaluate grade 5 bolts currently in use, demonstrate sequential bolt failure, determine maximum load capacity, and calculate a safety factor for a heavy lift rigging fixture. Testing of an assembly with 8 bolts found failures at 2 bolts and 6000 lbs of load. Testing of an assembly with 6 bolts found failures at 4 bolts and 6000 lbs of load, indicating complete failure would occur at 3 tons of load. The document recommends stamping the plates with a maximum 1.5 ton load and changing to higher strength Grade 8 bolts to increase the bolt safety factor of 1.2 to an acceptable 1.5.
Santa maria revisited with fea
The document discusses using finite element simulation to model the structural design of the Santa Maria's wooden hull and frames. It details creating a CAD model from historical plans, meshing frame section #25, and running simulations applying 2 tons of lateral loading. The simulation found the oak frame experienced maximum stress of 7100 psi and deformation of 0.040 inches, while aluminum and steel alternatives had higher strengths but also higher weights. The conclusion is that modern metals provide significant design strength margins but at a large penalty in increased weight for this hull component.
Dual level vibe isolation
The document describes a dual-level vibration isolation system designed to increase noise isolation for an RF electronics assembly. It aims to provide a low-cost solution that can be introduced into forward production to enhance electrical performance. Simulation results show the system uses a 2 degrees of freedom design with two levels of isolation via rubber chassis isolators and rubber grommet isolators. Frequency response plots indicate peak isolations of 135 Hz and 65 Hz across three input axes.
Automotive CV joint rubber boot stress analysis
The document describes a nonlinear finite element analysis of an automotive CV joint rubber boot. The analysis used Solidworks Simulation 2017 to model the rubber material's incompressible behavior and applied torsion and tension loads. The 150,000 degree of freedom mesh predicted a maximum stress of 5,500 psi and deformation of 0.095 inch, exceeding the material's 3,000 psi tensile strength and indicating local tearing failure.
Engine compression ratio study
The document analyzes the stress on piston and connecting rod components from increasing the compression ratio on a small block V8 engine from 9:1 to 11:1. Finite element analysis showed that at a 9:1 ratio the maximum stress was 45,810 psi, while an 11:1 ratio would cause maximum stress of 105,400 psi, below the alloy steel safety factor of 90,000 psi. The conclusion is that increasing the ratio to 11:1 would likely cause cracking and failure of the connecting rod.
Nonlinear FEA analysis Rubber gasket
This document summarizes the nonlinear finite element analysis of a silicone rubber gasket conducted using Solidworks Simulation 2015. The analysis used nonlinear material properties and geometric nonlinearity to model the incompressible and bulging behavior of rubber under compression. The model was meshed and subjected to a 0.035 inch displacement in the -Z direction. The results showed a maximum displacement including sliding and buckling, and a maximum stress of 234 psi, which is below the material strength of 700-800 psi. Revision A changed the material to a 70 durometer silicone rubber.
Crack stopper in metal parts
The document discusses how drilled "crack stopper" holes can reduce stress concentrations at crack tips in structural parts and delay fatigue failure. It explains that drilling a hole at the crack tip changes the stress pattern, which FEA analysis shows is effective. As a case study, FEA models of a simple steel bar under tension and torsion loading were analyzed. The results found that a drilled crack stopper hole reduced maximum stress at the crack tip by 94.6% under tension and 25.4% under torsion, demonstrating how the technique can increase fatigue life.
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Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
一比一原版(USF毕业证)旧金山大学毕业证如何办理
原件一模一样【微信：95270640】【旧金山大学毕业证USF学位证成绩单】【微信：95270640】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：95270640】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：95270640】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：95270640】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理旧金山大学毕业证USF学位证毕业证学位证【微信：95270640 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理旧金山大学毕业证毕业证学位证USF学位证【微信：95270640 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
原版制作(Humboldt毕业证书)柏林大学毕业证学位证一模一样
原件一模一样【微信：bwp0011】《(Humboldt毕业证书)柏林大学毕业证学位证》【微信：bwp0011】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问微bwp0011
【主营项目】
一.毕业证【微bwp0011】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微bwp0011】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Pressure Relief valve used in flow line to release the over pressure at our d...
Pressure Relief valve used in flow line to release the over pressure at our desired pressure
一比一原版(uofo毕业证书)美国俄勒冈大学毕业证如何办理
原版一模一样【微信：741003700 】【(uofo毕业证书)美国俄勒冈大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(uofo毕业证书)美国俄勒冈大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Digital Twins Computer Networking Paper Presentation.pptx
A Digital Twin in computer networking is a virtual representation of a physical network, used to simulate, analyze, and optimize network performance and reliability. It leverages real-time data to enhance network management, predict issues, and improve decision-making processes.
NATURAL DEEP EUTECTIC SOLVENTS AS ANTI-FREEZING AGENT
NATURAL DEEP EUTECTIC SOLVENTS AS ANTI-FREEZING AGENT
SCALING OF MOS CIRCUITS m .pptx
this ppt explains about scaling parameters of the mosfet it is basically vlsi subject
Prediction of Electrical Energy Efficiency Using Information on Consumer's Ac...
Energy efficiency has been important since the latter part of the last century. The main object of this survey is to determine the energy efficiency knowledge among consumers. Two separate districts in Bangladesh are selected to conduct the survey on households and showrooms about the energy and seller also. The survey uses the data to find some regression equations from which it is easy to predict energy efficiency knowledge. The data is analyzed and calculated based on five important criteria. The initial target was to find some factors that help predict a person's energy efficiency knowledge. From the survey, it is found that the energy efficiency awareness among the people of our country is very low. Relationships between household energy use behaviors are estimated using a unique dataset of about 40 households and 20 showrooms in Bangladesh's Chapainawabganj and Bagerhat districts. Knowledge of energy consumption and energy efficiency technology options is found to be associated with household use of energy conservation practices. Household characteristics also influence household energy use behavior. Younger household cohorts are more likely to adopt energy-efficient technologies and energy conservation practices and place primary importance on energy saving for environmental reasons. Education also influences attitudes toward energy conservation in Bangladesh. Low-education households indicate they primarily save electricity for the environment while high-education households indicate they are motivated by environmental concerns.
Mechatronics material . Mechanical engineering
Mechatronics is a multidisciplinary field that refers to the skill sets needed in the contemporary, advanced automated manufacturing industry. At the intersection of mechanics, electronics, and computing, mechatronics specialists create simpler, smarter systems. Mechatronics is an essential foundation for the expected growth in automation and manufacturing.
Mechatronics deals with robotics, control systems, and electro-mechanical systems.
一比一原版(uoft毕业证书)加拿大多伦多大学毕业证如何办理
原版一模一样【微信：741003700 】【(uoft毕业证书)加拿大多伦多大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(uoft毕业证书)加拿大多伦多大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Accident detection system project report.pdf
The Rapid growth of technology and infrastructure has made our lives easier. The
advent of technology has also increased the traffic hazards and the road accidents take place
frequently which causes huge loss of life and property because of the poor emergency facilities.
Many lives could have been saved if emergency service could get accident information and
reach in time. Our project will provide an optimum solution to this draw back. A piezo electric
sensor can be used as a crash or rollover detector of the vehicle during and after a crash. With
signals from a piezo electric sensor, a severe accident can be recognized. According to this
project when a vehicle meets with an accident immediately piezo electric sensor will detect the
signal or if a car rolls over. Then with the help of GSM module and GPS module, the location
will be sent to the emergency contact. Then after conforming the location necessary action will
be taken. If the person meets with a small accident or if there is no serious threat to anyone’s
life, then the alert message can be terminated by the driver by a switch provided in order to
avoid wasting the valuable time of the medical rescue team.
Software Engineering and Project Management - Introduction, Modeling Concepts...
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Data Driven Maintenance | UReason Webinar
Discover the latest insights on Data Driven Maintenance with our comprehensive webinar presentation. Learn about traditional maintenance challenges, the right approach to utilizing data, and the benefits of adopting a Data Driven Maintenance strategy. Explore real-world examples, industry best practices, and innovative solutions like FMECA and the D3M model. This presentation, led by expert Jules Oudmans, is essential for asset owners looking to optimize their maintenance processes and leverage digital technologies for improved efficiency and performance. Download now to stay ahead in the evolving maintenance landscape.
Tools & Techniques for Commissioning and Maintaining PV Systems W-Animations ...
Join us for this solutions-based webinar on the tools and techniques for commissioning and maintaining PV Systems. In this session, we'll review the process of building and maintaining a solar array, starting with installation and commissioning, then reviewing operations and maintenance of the system. This course will review insulation resistance testing, I-V curve testing, earth-bond continuity, ground resistance testing, performance tests, visual inspections, ground and arc fault testing procedures, and power quality analysis.
Fluke Solar Application Specialist Will White is presenting on this engaging topic:
Will has worked in the renewable energy industry since 2005, first as an installer for a small east coast solar integrator before adding sales, design, and project management to his skillset. In 2022, Will joined Fluke as a solar application specialist, where he supports their renewable energy testing equipment like IV-curve tracers, electrical meters, and thermal imaging cameras. Experienced in wind power, solar thermal, energy storage, and all scales of PV, Will has primarily focused on residential and small commercial systems. He is passionate about implementing high-quality, code-compliant installation techniques.
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