A kinematic pair with one degree of freedom called a screw joint is utilised in mechanisms. In screw joints, single-axis translation is accomplished by using the lead screw's threads as the translation medium. The majority of linear actuator types and some kinds of cartesian robots employ this kind of joint.
Threaded fasteners such as bolts and nuts are used to join machine parts. They allow parts to be dismantled without damage. Threaded joints provide clamping force through wedge action of threads. They are reliable, have small dimensions, and can be positioned vertically, horizontally, or inclined. However, they require holes which cause stress concentrations and can loosen under vibration. Bolts have heads and threaded shanks, while nuts have internal threads. Washers distribute load and prevent marring. Bolts are subjected to both tension and shear stresses, and standard nuts have a height of 0.8 times the bolt diameter to prevent shear failure. Eccentric loads on bolts cause additional stresses.
The document provides an overview of plates and screws used in orthopedic surgery. It discusses the different parts and types of screws, including cortical screws, cancellous screws, and locking screws. It also describes the mechanical functions of plates, including neutralization plates, compression plates, and buttress plates. The document outlines the features and uses of various plate systems, such as the dynamic compression plate (DCP), limited contact-DCP (LC-DCP), reconstruction plates, and one-third tubular plates. It also introduces locking compression plates (LCP), which provide angular stability through the locking head of the screw instead of friction between the plate and bone.
Anatomy of a bone screw, cortical screw vs cancellous screw, wood screw vs m...SouravBhattacharjee39
1. The document discusses the different parts of bone screws including the head, countersink, shaft, run-out, thread, core, and tip. It explains the functions of each part.
2. It compares wood screws and machine screws, noting that wood screws deform the surrounding wood for compression, while machine screws deform themselves when inserted into metal.
3. Cortical screws are designed to deform bone for compression, while cancellous screws have larger threads to deform cancellous bone trabeculae when inserted without tapping.
The document discusses different types of mechanical joints including riveted, welded, and bolted joints. It focuses on failures that can occur in riveted joints, including tearing of plates, shearing of rivets, and crushing of plates or rivets. It also describes processes like caulking that are used to make riveted joints leak proof, and how the strength of a riveted joint is determined by the component (plate or rivet) that fails at the lowest load.
This document discusses types of bolt connections based on arrangement of bolts and plates, mode of load transmission, and nature and location of load. There are two main types of joints subjected to axial loads: lap joints and butt joints. Butt joints are preferable to lap joints because the load is split between members, eliminating eccentricity and bending. Bolt connections can fail due to shear, bearing, or tension failures of bolts or plates. The design strength of bolts is governed by their strength in shear, bearing, or tension with safety factors applied.
The document discusses different types of hand tools used in automotive service, including wrenches, sockets and ratchets, screwdrivers, hammers, pliers, and how to safely use and maintain them. It explains the differences between open-end, box-end, and combination wrenches, as well as adjustable wrenches, line wrenches, and torque wrenches. The document also covers sockets, extensions, screwdriver types including offset and impact, hammers and mallets, and common pliers.
The document discusses different types of hand tools used in automotive service, including wrenches, sockets and ratchets, screwdrivers, hammers, pliers, and how to safely use and maintain them. It explains the differences between open-end, box-end, and combination wrenches, as well as adjustable wrenches, line wrenches, and torque wrenches. The document also covers sockets, extensions, screwdriver types including offset and impact, hammers and mallets, and common pliers.
A kinematic pair with one degree of freedom called a screw joint is utilised in mechanisms. In screw joints, single-axis translation is accomplished by using the lead screw's threads as the translation medium. The majority of linear actuator types and some kinds of cartesian robots employ this kind of joint.
Threaded fasteners such as bolts and nuts are used to join machine parts. They allow parts to be dismantled without damage. Threaded joints provide clamping force through wedge action of threads. They are reliable, have small dimensions, and can be positioned vertically, horizontally, or inclined. However, they require holes which cause stress concentrations and can loosen under vibration. Bolts have heads and threaded shanks, while nuts have internal threads. Washers distribute load and prevent marring. Bolts are subjected to both tension and shear stresses, and standard nuts have a height of 0.8 times the bolt diameter to prevent shear failure. Eccentric loads on bolts cause additional stresses.
The document provides an overview of plates and screws used in orthopedic surgery. It discusses the different parts and types of screws, including cortical screws, cancellous screws, and locking screws. It also describes the mechanical functions of plates, including neutralization plates, compression plates, and buttress plates. The document outlines the features and uses of various plate systems, such as the dynamic compression plate (DCP), limited contact-DCP (LC-DCP), reconstruction plates, and one-third tubular plates. It also introduces locking compression plates (LCP), which provide angular stability through the locking head of the screw instead of friction between the plate and bone.
Anatomy of a bone screw, cortical screw vs cancellous screw, wood screw vs m...SouravBhattacharjee39
1. The document discusses the different parts of bone screws including the head, countersink, shaft, run-out, thread, core, and tip. It explains the functions of each part.
2. It compares wood screws and machine screws, noting that wood screws deform the surrounding wood for compression, while machine screws deform themselves when inserted into metal.
3. Cortical screws are designed to deform bone for compression, while cancellous screws have larger threads to deform cancellous bone trabeculae when inserted without tapping.
The document discusses different types of mechanical joints including riveted, welded, and bolted joints. It focuses on failures that can occur in riveted joints, including tearing of plates, shearing of rivets, and crushing of plates or rivets. It also describes processes like caulking that are used to make riveted joints leak proof, and how the strength of a riveted joint is determined by the component (plate or rivet) that fails at the lowest load.
This document discusses types of bolt connections based on arrangement of bolts and plates, mode of load transmission, and nature and location of load. There are two main types of joints subjected to axial loads: lap joints and butt joints. Butt joints are preferable to lap joints because the load is split between members, eliminating eccentricity and bending. Bolt connections can fail due to shear, bearing, or tension failures of bolts or plates. The design strength of bolts is governed by their strength in shear, bearing, or tension with safety factors applied.
The document discusses different types of hand tools used in automotive service, including wrenches, sockets and ratchets, screwdrivers, hammers, pliers, and how to safely use and maintain them. It explains the differences between open-end, box-end, and combination wrenches, as well as adjustable wrenches, line wrenches, and torque wrenches. The document also covers sockets, extensions, screwdriver types including offset and impact, hammers and mallets, and common pliers.
The document discusses different types of hand tools used in automotive service, including wrenches, sockets and ratchets, screwdrivers, hammers, pliers, and how to safely use and maintain them. It explains the differences between open-end, box-end, and combination wrenches, as well as adjustable wrenches, line wrenches, and torque wrenches. The document also covers sockets, extensions, screwdriver types including offset and impact, hammers and mallets, and common pliers.
This document provides information about knuckle joints. It begins by defining a knuckle joint as a connection between two or more rods that allows for a small angular movement between the rods. The major components of a knuckle joint are then listed as the single eye end, double eye end, knuckle pin, collar, and tapper/split pin. Diagrams are included to illustrate these components. The document goes on to discuss the assembly of a knuckle joint and potential failure modes, including failures of the single eye in shearing or tension and failures of the forked end in tension or shearing. Applications for knuckle joints include elevator chains and valve rods. The presentation concludes with acknowledgments.
A knuckle joint connects two rods under tension and allows for small angular movements. It consists of eye ends, a forked end, a pin, and collar. The joint is designed by calculating rod diameters based on load, choosing eye/fork thicknesses and pin diameter based on empirical relations, and checking stresses do not exceed allowable values for tension, shear, and crushing. Knuckle joints can withstand tensile loads, are rigid but flexible, and easy to manufacture but cannot handle compression or multi-plane movements.
,
diploma mechanical engineering
,
mechanical engineering
,
machine design
,
design of machine elements
,
knuckle joint
,
failures of knuckle joint under different streses
,
fork end
,
single eye end
,
knuckle pin
What does clamping mean in context of jigs and fixtures?
Principles of Clamping
Different types of Clamping Devices, their advantaged and disadvantages
Basics of Tube Bending explores the fundamentals of bending with a mandrel, bending tube with a plug mandrel, a ball mandrel and wiper die, and also explores and troubleshoots some of the most common tube bending problems and issues!
The document discusses the design of various types of screw fasteners. It describes screw threads as helical grooves cut into cylindrical surfaces. Screw joints are commonly used for assembly and have advantages of being convenient to assemble/disassemble, reliable, and inexpensive due to standardization. The main types of screw fasteners are bolts, screws, studs, tapping screws, and set screws. Stresses in screw joints include tension, torsional shear, shear across threads, crushing stress, and bending stress. Screw joints are also subjected to stresses from initial tightening and external loads. Design considerations are discussed for bolted joints under eccentric loading parallel or perpendicular to the bolt axis.
Design and Detailing of RC Deep beams as per IS 456-2000VVIETCIVIL
Visit : https://teacherinneed.wordpress.com/
1. DEEP BEAM DEFINITION - IS 456
2. DEEP BEAM APPLICATION
3. DEEP BEAM TYPES
4. BEHAVIOUR OF DEEP BEAMS
5. LEVER ARM
6. COMPRESSIVE FORCE PATH CONCEPT
7. ARCH AND TIE ACTION
8. DEEP BEAM BEHAVIOUR AT ULTIMATE LIMIT STATE
9. REBAR DETAILING
10. EXAMPLE 1 – SIMPLY SUPPORTED DEEP BEAM
11. EXAMPLE 2 – SIMPLY SUPPORTED DEEP BEAM; M20, FE415
12. EXAMPLE 3: FIXED ENDS AND CONTINUOUS DEEP BEAM
13. EXAMPLE 4 : FIXED ENDS AND CONTINUOUS DEEP BEAM
DR. ARPAN CHAUDHARY
3rd YEAR PG RESIDENT,
M.S. ORTHOPAEDICS
SCREWS-HEAD, SHAFT, TIP,
RUN OUT, THREAD, TYPES OF SCREWS, CORTICAL SCREW, CANCELLOUS SCREW, CANNULATED CANCELLOUS SCREW, THE HERBERT SCREW, DYNAMIC HIP SCREW, PEDICAL SCREW, BIOABSORBABLE SCREW, LAG SCREW PRINCIPLE, TENSION BAND WIRING, GOETZE-RHINELANDER-BOHLER METHOD
REFERENCE- ANAND THAKUR
1. Adjustable wrenches can be used to tighten nuts and bolts of various sizes but are only suitable for applying light torque. Socket wrenches have detachable sockets that come in various sizes and types and are better for applying higher torque.
2. Power tools include electric tools like drills, pneumatic tools that are air-powered, and hydraulic tools like jacks. Safety precautions must be followed like wearing eye protection and not dragging tools by their cords or hoses.
3. Broken bolts and studs can be removed using methods like filing flats, drilling and using an extractor, depending on where the break occurred.
Screws and plates are commonly used implants in orthopedic surgery. There are different types of screws designed for either cortical or cancellous bone. Cortical screws have a finer pitch while cancellous screws have a coarser pitch. Plates can serve different functions, including as neutralization plates to bridge a fracture, compression plates to compress bone fragments, and buttress plates to strengthen weakened bone. Proper screw and plate selection depends on the bone type and fracture characteristics.
A universal joint is a mechanical joint that connects shafts whose axes are inclined at an angle, allowing torque transmission between shafts that have angular misalignment of up to 30 degrees. It consists of two fork ends connected by pins to a center block, which permits angular displacement. Universal joints are used in automotive driveshafts, propeller shafts, stone crushers, fans, pumps, conveyors, and marine equipment to compensate for misalignment between connected components.
This document provides information about sliding contact bearings. It defines key terms used in hydrodynamic journal bearings such as diametral clearance, eccentricity, and bearing characteristic number. It also discusses different types of bearings like solid, bushed, split, and thrust bearings. Examples are provided to show how to calculate load capacity, power lost to friction, and heat generated in different bearing types. Design steps for hydrodynamic journal bearings are also outlined.
Rigid and flexible couplings are used to connect shafts for power transmission. Rigid couplings require precise shaft alignment while flexible couplings can accommodate some misalignment. Common rigid couplings include sleeve, clamp, and flange types. Flexible couplings include beam, flange, Oldham, and universal joint types. Couplings are selected based on the application and maintained through regular inspection and lubrication to prevent failures from misalignment, improper installation, or exceeding design limits. Proper shaft alignment during coupling setup is important for maximum power transmission and machine lifespan.
This document discusses different types of shaft couplings used to connect rotating shafts. It describes rigid couplings like sleeve, clamp and flange couplings that are used when shafts are perfectly aligned. Flexible couplings like bushed pin, universal and Oldham couplings are used to connect shafts that allow for misalignment. The key requirements of couplings are to maximize power transmission while withstanding misalignment between connected shafts.
Unit 4 Design of Power Screw and Screw JackMahesh Shinde
The document discusses power screws, including their terminology, types of threads, torque analysis, and efficiency. It defines key terms like nominal diameter, pitch, lead, and lead angle. It describes common types of threads like square, ACME, and buttress threads. It discusses torque required to raise and lower loads, including expressions for self-locking and overhauling screws. The document also covers screw efficiency and collar friction torque, providing expressions to calculate overall efficiency. An example calculation is given to find maximum load lifted, efficiency, and overall efficiency of a screw jack.
Bearings are used in machines to allow rotating parts to move freely while supporting loads. There are two main types of bearings: sliding contact/frictional bearings which operate on sliding friction; and rolling contact/anti-frictional bearings which have rolling elements like balls or rollers to reduce friction. Rolling contact bearings can carry heavier loads than sliding contact bearings and have lower friction, but are more complex and expensive to manufacture. Bearings are classified based on the type of load they support, such as radial loads, axial/thrust loads, or combined loads. Common bearing types include ball bearings, roller bearings, tapered roller bearings, and needle roller bearings.
Fire prevention and control systems - Fire alarms - Electrical alarm circuits -Smoke extraction and ventilation -Gas extinguishers - Types of detectors - Gas installation and components.
Heat emitters - Expansion facilities of heating system - Energy management system - Factors affecting fuels-Oil sand properties of natural gas - Air conditioning, principles and applications - Refrigerant and system characteristics – Heat recovery devices.
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This document provides information about knuckle joints. It begins by defining a knuckle joint as a connection between two or more rods that allows for a small angular movement between the rods. The major components of a knuckle joint are then listed as the single eye end, double eye end, knuckle pin, collar, and tapper/split pin. Diagrams are included to illustrate these components. The document goes on to discuss the assembly of a knuckle joint and potential failure modes, including failures of the single eye in shearing or tension and failures of the forked end in tension or shearing. Applications for knuckle joints include elevator chains and valve rods. The presentation concludes with acknowledgments.
A knuckle joint connects two rods under tension and allows for small angular movements. It consists of eye ends, a forked end, a pin, and collar. The joint is designed by calculating rod diameters based on load, choosing eye/fork thicknesses and pin diameter based on empirical relations, and checking stresses do not exceed allowable values for tension, shear, and crushing. Knuckle joints can withstand tensile loads, are rigid but flexible, and easy to manufacture but cannot handle compression or multi-plane movements.
,
diploma mechanical engineering
,
mechanical engineering
,
machine design
,
design of machine elements
,
knuckle joint
,
failures of knuckle joint under different streses
,
fork end
,
single eye end
,
knuckle pin
What does clamping mean in context of jigs and fixtures?
Principles of Clamping
Different types of Clamping Devices, their advantaged and disadvantages
Basics of Tube Bending explores the fundamentals of bending with a mandrel, bending tube with a plug mandrel, a ball mandrel and wiper die, and also explores and troubleshoots some of the most common tube bending problems and issues!
The document discusses the design of various types of screw fasteners. It describes screw threads as helical grooves cut into cylindrical surfaces. Screw joints are commonly used for assembly and have advantages of being convenient to assemble/disassemble, reliable, and inexpensive due to standardization. The main types of screw fasteners are bolts, screws, studs, tapping screws, and set screws. Stresses in screw joints include tension, torsional shear, shear across threads, crushing stress, and bending stress. Screw joints are also subjected to stresses from initial tightening and external loads. Design considerations are discussed for bolted joints under eccentric loading parallel or perpendicular to the bolt axis.
Design and Detailing of RC Deep beams as per IS 456-2000VVIETCIVIL
Visit : https://teacherinneed.wordpress.com/
1. DEEP BEAM DEFINITION - IS 456
2. DEEP BEAM APPLICATION
3. DEEP BEAM TYPES
4. BEHAVIOUR OF DEEP BEAMS
5. LEVER ARM
6. COMPRESSIVE FORCE PATH CONCEPT
7. ARCH AND TIE ACTION
8. DEEP BEAM BEHAVIOUR AT ULTIMATE LIMIT STATE
9. REBAR DETAILING
10. EXAMPLE 1 – SIMPLY SUPPORTED DEEP BEAM
11. EXAMPLE 2 – SIMPLY SUPPORTED DEEP BEAM; M20, FE415
12. EXAMPLE 3: FIXED ENDS AND CONTINUOUS DEEP BEAM
13. EXAMPLE 4 : FIXED ENDS AND CONTINUOUS DEEP BEAM
DR. ARPAN CHAUDHARY
3rd YEAR PG RESIDENT,
M.S. ORTHOPAEDICS
SCREWS-HEAD, SHAFT, TIP,
RUN OUT, THREAD, TYPES OF SCREWS, CORTICAL SCREW, CANCELLOUS SCREW, CANNULATED CANCELLOUS SCREW, THE HERBERT SCREW, DYNAMIC HIP SCREW, PEDICAL SCREW, BIOABSORBABLE SCREW, LAG SCREW PRINCIPLE, TENSION BAND WIRING, GOETZE-RHINELANDER-BOHLER METHOD
REFERENCE- ANAND THAKUR
1. Adjustable wrenches can be used to tighten nuts and bolts of various sizes but are only suitable for applying light torque. Socket wrenches have detachable sockets that come in various sizes and types and are better for applying higher torque.
2. Power tools include electric tools like drills, pneumatic tools that are air-powered, and hydraulic tools like jacks. Safety precautions must be followed like wearing eye protection and not dragging tools by their cords or hoses.
3. Broken bolts and studs can be removed using methods like filing flats, drilling and using an extractor, depending on where the break occurred.
Screws and plates are commonly used implants in orthopedic surgery. There are different types of screws designed for either cortical or cancellous bone. Cortical screws have a finer pitch while cancellous screws have a coarser pitch. Plates can serve different functions, including as neutralization plates to bridge a fracture, compression plates to compress bone fragments, and buttress plates to strengthen weakened bone. Proper screw and plate selection depends on the bone type and fracture characteristics.
A universal joint is a mechanical joint that connects shafts whose axes are inclined at an angle, allowing torque transmission between shafts that have angular misalignment of up to 30 degrees. It consists of two fork ends connected by pins to a center block, which permits angular displacement. Universal joints are used in automotive driveshafts, propeller shafts, stone crushers, fans, pumps, conveyors, and marine equipment to compensate for misalignment between connected components.
This document provides information about sliding contact bearings. It defines key terms used in hydrodynamic journal bearings such as diametral clearance, eccentricity, and bearing characteristic number. It also discusses different types of bearings like solid, bushed, split, and thrust bearings. Examples are provided to show how to calculate load capacity, power lost to friction, and heat generated in different bearing types. Design steps for hydrodynamic journal bearings are also outlined.
Rigid and flexible couplings are used to connect shafts for power transmission. Rigid couplings require precise shaft alignment while flexible couplings can accommodate some misalignment. Common rigid couplings include sleeve, clamp, and flange types. Flexible couplings include beam, flange, Oldham, and universal joint types. Couplings are selected based on the application and maintained through regular inspection and lubrication to prevent failures from misalignment, improper installation, or exceeding design limits. Proper shaft alignment during coupling setup is important for maximum power transmission and machine lifespan.
This document discusses different types of shaft couplings used to connect rotating shafts. It describes rigid couplings like sleeve, clamp and flange couplings that are used when shafts are perfectly aligned. Flexible couplings like bushed pin, universal and Oldham couplings are used to connect shafts that allow for misalignment. The key requirements of couplings are to maximize power transmission while withstanding misalignment between connected shafts.
Unit 4 Design of Power Screw and Screw JackMahesh Shinde
The document discusses power screws, including their terminology, types of threads, torque analysis, and efficiency. It defines key terms like nominal diameter, pitch, lead, and lead angle. It describes common types of threads like square, ACME, and buttress threads. It discusses torque required to raise and lower loads, including expressions for self-locking and overhauling screws. The document also covers screw efficiency and collar friction torque, providing expressions to calculate overall efficiency. An example calculation is given to find maximum load lifted, efficiency, and overall efficiency of a screw jack.
Bearings are used in machines to allow rotating parts to move freely while supporting loads. There are two main types of bearings: sliding contact/frictional bearings which operate on sliding friction; and rolling contact/anti-frictional bearings which have rolling elements like balls or rollers to reduce friction. Rolling contact bearings can carry heavier loads than sliding contact bearings and have lower friction, but are more complex and expensive to manufacture. Bearings are classified based on the type of load they support, such as radial loads, axial/thrust loads, or combined loads. Common bearing types include ball bearings, roller bearings, tapered roller bearings, and needle roller bearings.
Fire prevention and control systems - Fire alarms - Electrical alarm circuits -Smoke extraction and ventilation -Gas extinguishers - Types of detectors - Gas installation and components.
Heat emitters - Expansion facilities of heating system - Energy management system - Factors affecting fuels-Oil sand properties of natural gas - Air conditioning, principles and applications - Refrigerant and system characteristics – Heat recovery devices.
The document discusses principles of illumination and ventilation. It covers:
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- Requirements for ventilation systems like providing fresh air and proper air flow.
- Types of mechanical ventilation including fans, and benefits like improved indoor air quality.
- Water treatment processes such as aeration, coagulation, and disinfection to remove impurities.
- Solar water heating systems that use solar energy to heat water and the types of active and passive systems.
Introduction of lifts and Escalators -Special features required for lifting arrangement and installation-Travelators – Controls - Machine room and equipments.
UNIT-1--STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS.pptxkarthi keyan
STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS
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Springs – Design of helical springs – Design of Leaf, Belleville springs and Torsion springs – Flywheels considering stresses in rims and arms for engines and punching machines. Design of Crankshaft.
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Design of solid and hollow shafts based on strength, rigidity and critical speed – Keys, keyways and splines – Rigid and flexible couplings.
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Use of Natural Gas, Liquefied Petroleum Gas, Bio-diesel, Bio-ethanol, Gasohol and Hydrogen in Automobiles- Engine modifications required –Performance, Combustion and Emission Characteristics of SI and CI engines with these alternate fuels - Electric and Hybrid Vehicles, Fuel Cell Note: Practical Training in dismantling and assembling of Engine parts and Transmission Systems should be given to the students.
UNIT IV STEERING, BRAKES AND SUSPENSION SYSTEMS karthi keyan
Steering geometry and types of steering gear box-Power Steering, Types of Front Axle, Types of Suspension Systems, Pneumatic and Hydraulic Braking Systems, Antilock Braking System (ABS), electronic brake force distribution (EBD) and Traction Control.
Electronically controlled gasoline injection system for SI engines, Electronically controlled diesel injection system (Unit injector system, Rotary distributor type and common rail direct injection system), Electronic ignition system (Transistorized coil ignition system, capacitive discharge ignition system), Turbo chargers (WGT, VGT), Engine emission control by three way catalytic converter system, Emission norms (Euro and BS).
This document discusses different types of automobiles and their characteristics. It describes vehicles based on their purpose, weight, fuel used, capacity, number of wheels, and driver seat location. Vehicle types include passenger vehicles, goods carriers, heavy/light/medium weight vehicles running on petrol, diesel, gas or electric. Vehicles also vary based on the number of wheels from two to six. The document then discusses the chassis of vehicles, including its frame, wheels, axle, yoke, body and different classifications based on engine fitting and number of wheels. It lists characteristics of a good chassis and its main components. Finally, it covers vehicle aerodynamics and the different aerodynamic forces acting on a vehicle.
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This document discusses various hybrid and non-traditional machining processes including electrochemical spark machining (ECSM) and electrical discharge diamond grinding (EDDG). ECSM uses sparks generated between a cathode tool and workpiece in an electrolyte solution to remove material. Key parameters for ECSM include supply voltage, tool diameter, electrolyte composition, and gap distance. EDDG uses sparks to soften and abrade workpiece surfaces with diamond abrasives. Factors like wheel speed, current, and pulse time affect the EDDG process. Thermal processes like electric discharge micromachining (EDMM) and electron beam micromachining precisely shape conductive materials by localized melting/vaporization using electric
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
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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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Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.
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This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
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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.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
2. • A knuckle joint is used to connect two rods
which are under the action of tensile loads.
• It consists of mainly three elements a fork
or double eye rod, a single eye rod and
knuckle pin.
• Its use may be found in the link of a cycle
chain, tie rod joint for roof truss
3. Knuckle joint Two or more rods subjected to tensile and
compressive forces are fastened together
Their axes are not in
alignments but meet in a point
The joint allows a small
angular moment of one
rod relative to another
It can be easily
connected and
disconnected
Applications: Elevator chains, valve rods, etc
11. The rod may tear along a plane passing through
the pin axis
3.Failure of the single eye or rod end
in tension
12. The rod end may be sheared off as shown in fig.
The resisting stress is
4.Failure of the single eye or rod end
in double shear
13. 5. Failure of single eye or rod end in
crushing
Due to tension load , the eye end may be crushed to failure. The area resisting
crushing is taken as the projected area and the corresponding stress is related to
the tensile load is
14. 6. Failure of forked end in Tension
The fork end may fail in tension across the pin hole
15. 7. Failure of forked ends in double shear
(as shear of eye)
16. 8. Failure of forked ends in Crushing
(as Crushing of eye)
The forked end is weak in crushing than in other modes,
it will result in crushing Failure
17. 9. Failure of Knuckle pin by Bending
• The loosely fitted knuckle pin experiences
bending.
• The load on pin uniformly varies over the pin area
in the fork.
• Maximum bending is at the mid of the pin.