MET212-Assinment 2
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This document contains 7 questions related to fluid mechanics and machines. Question 1 asks to determine the heights of water and oil in the arms of a U-tube manometer. Question 2 asks to calculate the load that can be lifted by a hydraulic jack with given piston areas and an applied force. Question 3 asks to calculate pressure heads of different liquids corresponding to a given pressure. Question 4 asks to calculate the pressure at the bottom of a tank partially filled with glycerin. Questions 5-7 ask calculation questions related to pressure differences and forces in fluid systems.
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Q.3: Compare the pressure heads (h) of water, carbon tetrachloride and mercury
corresponding to a pressure of 50 kPa. Express your results in SI units.
(ρwater=1000kg/m3
, ρmercury=13600kg/m3
, ρcarbontetrachloride = 1590kg/m3
)
Q.4: A closed tank is partially filled with glycerin. If the air pressure in the tank is
6 psi and the depth of glycerin is 10 ft, what is the pressure in psi at the bottom of
the tank? [ρglycerin= 2.44 slugs/ft3
and [(1 Lb =1 slugs x 1 ft/s2
)]
Q.5: The lower half of a 10-m high cylindrical barrel is filled with water and the upper
half with oil. Determine the pressure difference (∆P) in kPa between the bottom and top
of the cylinder.
Dr. Adel Afify MET212 Octuber, 2011 2](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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- Examples of calculating cylinder output and bore size based on given parameters like pressure, load, and load rate.
- Tables showing theoretical output for different cylinder types based on bore size, rod diameter, direction, area, and speed at given flow rates and pressures.
- Information on calculating buckling strength of piston rods based on mounting type, stroke, diameter and load to determine maximum loads and strokes for
Flow measurement basics
This document describes different flow measurement devices including the venturi meter, orifice plate, and rotameter. It provides details on how each device works based on pressure differences caused by a flow restriction. The objectives are to study and compare the characteristics of venturi meters and orifice plates, calculate flow rates using measured pressure drops, and understand how rotameters operate based on the position of a float. An apparatus is described that can be used to collect pressure and flow rate data from each device to analyze flow measurement principles.
Fluid Mechanics & Machinery QP NOV-2013
This document contains a question paper for a mechanical engineering examination with 15 multiple choice and numerical problems covering topics in fluid mechanics and machinery. The problems address concepts like cavitation, pressure drops in pipes, dimensional analysis, flow through turbines and pumps, and hydraulic efficiencies. The questions require calculations of flow rates, head losses, velocity triangles, and efficiencies based on given fluid properties, pipe dimensions, pump/turbine specifications, and operating conditions.
Fluid mechanics question bank
Muhammed Fuad Rashid
Petroleum Engineering Department at Koya University
Fluid Mechanics Question bank by Dr. Jafar Dalo
2020
exp.9 flow meter demonstration
This document summarizes an experiment comparing different flow meter types. The experiment used a rota meter, venturi meter, and orifice plate to measure the flow rate of water. Calculations were shown for three trials measuring the actual and theoretical flow rates to determine the discharge coefficient for each meter. Graphs showed the relationship between discharge coefficient and actual flow rate for the venturi meter and orifice plate. The coefficient was generally higher for the venturi meter compared to the orifice plate.
17411 fluid mechanics and machinery
This document contains 3 sample test papers for a Diploma in Mechanical Engineering course on the subject of Fluid Mechanics and Machinery. Each test paper contains 3 sections with multiple choice and long answer questions testing concepts related to fluid properties, fluid statics, fluid dynamics, fluid flow measurement devices, hydraulic turbines, pumps and other fluid machinery. The questions cover definitions, principles, derivations, calculations and explanations with diagrams. The test papers are designed to evaluate students' understanding of key fluid mechanics and fluid machinery concepts over a 3 hour exam period.
Thermo fluids lab key
This document provides instructions for conducting an experiment to determine the jet diameter and coefficient of discharge of an orifice. It describes the necessary apparatus, including an orifice discharge setup, collecting tank fitted with a piezometer, stopwatch and meter scale. Formulas are given for calculating the radius of the jet, jet contraction coefficient, velocity coefficient, and discharge coefficient based on measurements taken. The procedure explains how to adjust the orifice setup and take measurements using a micrometer to determine the jet radius.
Power2010_27048_Final
This document summarizes experimental work characterizing two-phase flow in centrifugal pumps. Small pressure sensors were used to measure pressure distributions in an impeller, diffuser, and volute under varying air-water flow conditions. High-speed photography was also used. Analytical models were developed to predict single- and two-phase pressure distributions, and compared to test data. Previous related pump test programs are also summarized. Equations for analyzing single-phase pump performance and predicting pressure rises in the suction, impeller, diffuser, and volute are provided.
B_B1_G3_CP_HMAFP.pptx
The document summarizes the design and analysis of a centrifugal pump for pumping water over a 15 story building. It includes classifications of pumps, descriptions of centrifugal pump components and working, design calculations to size the pump impeller and determine flow rate, selection of an appropriate motor, and summaries of CFD results and common failure modes in centrifugal pumps. The group designed the pump to fill an 81,000 liter tank within 10 minutes to supply a typical 15 story building.
Hms
This document provides instructions for laboratory experiments on hydraulic machines and systems, including determining the coefficient of impact of jets on different vanes, studying the characteristic curves of a Pelton wheel turbine and Francis turbine at constant head conditions, and studying the characteristic curves of a Kaplan turbine at constant head condition. Key details include objectives, required apparatus, relevant formulas, procedures, expected observations and results for each experiment. The experiments aim to analyze forces on vanes from fluid jets, efficiency of different turbine types, and develop characteristic curves under constant head.
Systemas hidraulicos neumaticos
This document summarizes key concepts related to aircraft hydraulic and pneumatic power systems. It discusses the history and definition of hydraulics, and provides examples of common aircraft systems that use hydraulic power, such as landing gear and flight controls. The document then covers the basic physics principles behind hydraulic systems, including Pascal's law, relationships between pressure, force and area. It also discusses hydraulic fluids used in aircraft, including mineral-based and synthetic fluids, and considerations for fluid selection such as viscosity, stability and compatibility with aircraft materials.
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MET211-Lab-Practical questions -_lab_ex._1
This document provides questions and answers about using a Saybolt Viscometer to determine the viscosity of petroleum samples. It defines Saybolt Universal Viscosity and Saybolt Furol Viscosity as the efflux time in seconds for a sample to flow through a calibrated orifice and fill a 60-ml receiving flask under controlled temperature conditions. The key components of the Saybolt Viscometer are identified as the thermometer, timer, cork/rubber stopper, receiving flask, and universal or furol orifice.
MET 304 Welded joints example-3-solution
The maximum stress in the reinforced weld of a bracket plate is calculated to be 10,408.5 psi. The plate is subjected to a load of 2,200 lbs applied 6.5 inches from the weld. The geometry and load are used to calculate the polar moment of area, torque, and radial distance to determine the torsional stress. This stress is resolved into vertical and horizontal components, and combined with the direct vertical stress from the load to find the total vertical and resultant stresses. The resultant stress is then multiplied by a concentration factor to determine the maximum stress in the weld.
MET 304 Shafts and keys-mod#3
1) Shafts are used to transmit power between rotating components. Torque is the major load on power transmitting shafts and can be transferred through couplings or gears/pulleys mounted on the shaft.
2) The document provides equations to design shafts based on the loads they experience such as torsion, bending, bending and torsion. It also provides recommended stress values and factors for different shaft materials and load conditions.
3) Keys are used to transmit torque between a shaft and component. They are designed based on withstanding shear and crushing stresses. Equations are provided to calculate the required key size based on transmitted torque.
Met304 assignment4
The document appears to be an assignment sheet for a mechanical engineering technology course. It includes the course information, student details, and a multi-part question regarding the selection of a suitable ball bearing for a shaft supported by two bearings that carries various loads and operates at certain specifications, with requirements for a service life of 2 years and shaft diameter range.
MET 304 Mechanical joints welded
The document discusses various types of mechanical joints including welded joints. It describes common welding processes like oxy-fuel gas welding, shield metal arc welding, and gas tungsten arc welding. The document also covers welding joints, terminology, design considerations, stress analysis of welded joints under different loading conditions, and includes examples of calculating stresses in welded joints.
MET 304 Mechanical joints riveted_joints
Riveting was commonly used to join metal parts before welding but is now less common. Rivets are cylindrical shafts inserted through holes in materials to be joined and formed into heads on both ends. Riveted joints can fail due to bending, shearing of rivets, crushing of rivets or plates, or tearing of materials. The document provides equations to calculate load capacities of riveted joints based on factors like rivet material properties, number of rivets, and whether rivets are in single or double shear. Design of riveted joints involves selecting rivet size, number and layout to optimize strength and load distribution.
MET 304 Belt drives
This document discusses belt drives and the selection process for V-belts. It begins with the functions of belts, which is to transmit motion between shafts located at a distance from each other. It then describes the different types of belts and their components. The document provides steps to select a suitable V-belt size based on power transmitted, pulley speeds and sizes. It includes an example problem demonstrating the full selection process.
MET 304 Load stress and_failure
1. This document discusses load stress and failure in mechanical design. It defines key terms like actual load, maximum load, safety factor, and strength.
2. The safety factor is the ratio of the maximum allowable load to the actual load. It indicates how close a component is to failure. Higher safety factors indicate a safer component, though variations must be considered.
3. Stress concentration occurs where geometric variations cause streamlines of force to bunch together, increasing local stresses. Non-uniform stresses result from geometric irregularities. Appropriate safety factors must be selected based on factors like the material, loading conditions, consequences of failure, and understanding of variations.
MET 304 Belt drives
This document discusses belt drives and the selection of V-belts. It describes the different types of belts, including flat, round, V-shaped, and timing belts. It provides details on selecting the appropriate V-belt, including determining the service factor, belt size, pulley diameters, belt length, and number of belts needed based on the power transmitted and machine specifications. Tables provide information on belt characteristics, pulley dimensions, standard belt lengths, and selection factors.
MET 304 Bearings notes
The document discusses types of rolling contact bearings including ball bearings and roller bearings. It describes the main parts of ball bearings including the inner ring, outer ring, rolling elements (balls), and ball retainer. The document provides information on selecting suitable ball bearings for applications including considering load type and size, operating conditions, and desired service life. Examples are given to demonstrate how to select ball bearings based on load and operating conditions.
Met 305 tutorial-0_simple_mechanisms
This document provides definitions and terminology related to mechanisms in machines. It discusses key concepts such as:
1) Kinematic links or elements, which are parts of a machine that move relative to other parts.
2) Kinematic pairs, which are connections between two links that constrain their relative motion. Common types include sliding, turning, rolling, and screw pairs.
3) Kinematic chains and mechanisms, which are combinations of kinematic pairs that transmit motion. A mechanism has one fixed link.
4) Degrees of freedom, which refer to the number of independent parameters needed to define a linkage's position. Most practical mechanisms have one degree of freedom.
Met 305 tutorial_7-governors
This document discusses governors, which are devices that regulate the speed of engines by automatically controlling the supply of working fluid. It aims to study different types of governors, define effort and power, understand governor sensitivity and stability, and solve problems involving governors. Governors function by increasing or decreasing the supply of working fluid to maintain engine speed within limits as the load increases or decreases, thereby keeping the mean speed constant despite varying load conditions.
Met 305 tutorial_6_cams
This document discusses different types of cams and cam mechanisms. It describes various types of followers based on their contacting surface, motion, and path of motion. It also defines important cam terminology used to describe cam profiles such as base circle, trace point, pressure angle, pitch point, pitch circle, and lift. The document provides examples of cam profiles that produce uniform velocity, simple harmonic, uniform acceleration/retardation, and cycloidal motions in the follower. It includes example problems of constructing cam profiles for different follower motions and specifications.
MET 305 tutorial_5-gear_train
This document provides information about gear trains and epicyclic gear trains. It includes examples of how to calculate speed ratios and determine speeds of various gears in different configurations of epicyclic gear trains using the tabular method. Several problems are also provided at the end for determining speeds and directions of rotation of gears in various epicyclic gear train arrangements given certain input conditions.
MATH 301 Exercise 11.2
This document discusses infinite series and their properties. It defines sequences and series, and the notation used to represent them. An infinite series is the sum of all terms in a sequence. Geometric series are introduced, which converge if the common ratio r is less than 1. The sum of a convergent geometric series is provided. Examples are given of determining if a series converges or diverges, and calculating the sum if it converges. Recurring decimals are also discussed.
Revited joints
This document discusses riveted joints, including their applications, materials used, types of joints, and failure modes. Riveted joints are used in pressure vessels, boilers, tanks, bridges, ships, airplanes, cranes, buildings, and machinery. The document describes rivets and their components. It explains the types of riveted joints, including lap and butt joints. It then covers the potential failure modes of riveted joints, such as bending of rivets or plates, shearing of rivets, crushing of rivets or plates, rupture of plates by tension, and tearing or shearing of margins. The document provides examples of calculations for determining the load capacity of a ri
Shaft keys
The document discusses different types of shaft keys, how they transmit torque, and their design. It describes various key shapes, sizes, and tapers for different duty levels. Formulas are provided for calculating the crushing strength and shear strength of keys based on the torque transmitted, key dimensions, and material properties. An example problem demonstrates selecting a suitable square key size for a given shaft and torque requirement by analyzing both crushing strength and shear strength.
MET 304 Bearing selection
The document discusses the selection and use of bearings. It describes the functions of bearings as supporting loads on shafts and locating the shaft position. It outlines types of bearings as sliding contact or rolling contact. Rolling contact bearings include ball bearings and roller bearings. When selecting a bearing, factors to consider include load type (radial, thrust, or combined), load capacity, dimensions, intended use conditions, and desired service life. Installation of ball bearings requires proper shaft and housing design, lubrication provision, and sealing.
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学校原版美国波士顿大学毕业证学历学位证书原版一模一样
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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
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留信网认证的作用:
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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
Rainfall intensity duration frequency curve statistical analysis and modeling...
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
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Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
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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
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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
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Applications of artificial Intelligence in Mechanical Engineering.pdf
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
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MET212-Assinment 2
- 1. assinment2-180807140017.doc MET212- Fluid Mechanics & Machines 1 st Octuber, 2011 Name…… ……… ……… …… ………… I.D No.…….… ……… Section: …….. date ……………………………………….. Q.1 Consider a U-tube manometer whose arms are open to the atmosphere. One arm contains 70cm (hw1) high water and other arm contains light oil (SG=0.78) from the other. If the other arm contains oil-water and the height ratio of 6 (ho=6hw2). Determine the heights in meter of each fluid in the right arm of this U-tube manometer. Q.2: A basic elements of a hydraulic jack are shown in Figure below for lifting a car. If mechanical advantage at F1 and the area of piston A1 is 20-cm2 and A2 is 190-cm2 , what load F2 can be raised for the car by a force of 60 N applied to the smaller piston. Dr. Adel Afify MET212 Octuber, 2011 1 10
- 2. assinment2-180807140017.doc Q.3: Compare the pressure heads (h) of water, carbon tetrachloride and mercury corresponding to a pressure of 50 kPa. Express your results in SI units. (ρwater=1000kg/m3 , ρmercury=13600kg/m3 , ρcarbontetrachloride = 1590kg/m3 ) Q.4: A closed tank is partially filled with glycerin. If the air pressure in the tank is 6 psi and the depth of glycerin is 10 ft, what is the pressure in psi at the bottom of the tank? [ρglycerin= 2.44 slugs/ft3 and [(1 Lb =1 slugs x 1 ft/s2 )] Q.5: The lower half of a 10-m high cylindrical barrel is filled with water and the upper half with oil. Determine the pressure difference (∆P) in kPa between the bottom and top of the cylinder. Dr. Adel Afify MET212 Octuber, 2011 2
- 3. assinment2-180807140017.doc Q.6: The top of an inverted U-tube manometer is filled with oil of specific gravity, SGo=0.98 and the remainder of the tube with water of specific gravity SGw=1.01. Find the pressure difference (PB - PA) in Pa between two points B and A at the same level at the base of the legs when the manometer reading in oil-water level h is 75mm. Q. 7: A rectangular gate located at h=3.048m below the surface of water (see Fig.). Determine the magnitude of the force as well as the depth of application on the rectangular gate of width 1.524m and height 1.828m and the gate is inclined at an angle 600 from the water surface level. ρwater= 999.52 kg/m3 . Dr. Adel Afify MET212 Octuber, 2011 3 h Water 600 Rectangular Gate 1.828m