08-11-2012, 05:19 PM
DESIGN MODELING AND ANALYSIS OF SINGLE PLATE CLUTCH
clutch ppt.ppt (Size: 931 KB / Downloads: 359)
ABSTRACT
A single plate clutch consists of a clutch plate whose both sides are faced with a frictional material.
It is mounted on the hub.
The pressure plate is mounted inside the clutch body which is bolted to the flywheel.
The pressure plate pushes the clutch plate towards the flywheel by means of springs (arranged radially)
The aim of the project is to design, model a single plate clutch and perform static & Thermal analysis by applying frictional force and temperatures produced by friction
Modeling of component is done in catia soft ware
ANSYS is general-purpose finite element analysis (FEA) software package.
INTRODUCTION
A Clutch is a machine member used to connect or disconnects the driving shaft to a driven shaft.
Clutch is located in between flywheel and transmission system.
Clutches allow a high inertia load to be stated with a small power.
A clutch thus provides an interruptible connection between two rotating shafts.
A popularly known application of clutch is in automotive vehicles.
Clutch works on the principles of friction.
When properly operated it prevents jerks during power flow.
CONSIDERATIONS IN DESIGNING A FRICTION CLUTCH
The suitable material for the friction surface should be selected.
The moving parts of the clutch should have low weight in order to minimize the inertia
The clutch should have provision for facilitating repairs.
It is usually designed to transmit 125 to150% of the maximum engine torque.
Size of clutch should be small.
Proper ventilation should be provided for dissipation of heat.
Clutch should be positively take the drive with occurrence of sudden jerks.
MATERIALS USED FOR FRICTION LINING
The two materials in contact must have a high coefficient of friction.
The materials in contact must resist wear effects, such as scoring, galling, and ablation.
The friction value should be constant over a range of temperatures and pressures.
The materials should be resistant to the environment (moisture, dust, pressure)
The materials should possess good thermal properties, high heat capacity, good thermal conductivity, withstand high temperatures
Able to withstand high contact pressures
Good shear strength to transferred friction forces to structure
Should be safe to use and acceptable for the environment
conclusions
In our project we have designed and modeled a single plate clutch using asbestos and cotton fabric as a friction material
Modeling is done by using catia
We have performed structural and thermal analysis by using both the materials on single plate clutch.
Stress values or with in the range of permissible stress