` DESIGN AND ANALYSIS OF FRICTION CLUTCH PLATE USING DIFFERENT MATERIALS 1 KUNCHALA BRAHMAIAH, 2 O HEMALATHA 1 PG Scholar, Department of MECH, Muffakhamjah College of Engineering and Technology, Road no.3, Banjarahills, Hyderabad, 500034. 2 Assistant Professor ME. (Ph.D), Department of MECH, Muffakhamjah College of Engineering and Technology, Road no.3, Banjarahills, Hyderabad, 500034. ABSTRACT The clutch is one of the main components in automobiles. The engine power transmitted to the system through the clutch. The failure of such a critical component during service can stall the whole application. The driven main plate failed normally during its operation due to cyclic loading. In design of the friction clutches of automobiles, knowledge on the thermo-elasticity a priori is very informative in the initial design stage. Especially, the precise prediction technique of maximum structural stress should be requested in design of mechanical clutches for their durability and compactness. This project explains the Static structural analysis and Modal analysis of the clutch plate by changing circle diameter and applying two types of materials. This project finds the stresses, deformations and frequencies in failure region during operation. It also suggests design modifications to improve the life time of the clutch plate. INTRODUCTION A clutch is a mechanical device that engages and disengages the power, transmission, especially from driving shaft to driven shaft. Clutches are used whenever the transmission of power or motion must be controlled either in amount or over time (e.g., electric screwdrivers limit how much torque is transmitted through use of a clutch; clutches control whether automobiles transmit engine power to the wheels). In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). In these devices, one shaft is typically attached to an engine or other power unit (the driving member) while the other shaft (the driven member) provides output power for work. While typically the motions involved are rotary, linear clutches are also possible. In a torque-controlled drill, for instance, one shaft is driven by a motor and the other drives a drill chuck. The clutch connects the two shafts so they may be locked together and spin at the same speed (engaged), locked together but spinning at different speeds (slipping), or unlocked and spinning at different speeds (disengaged). Fig.1: Clutch plate with mountings Clutch closed In the engaged state, the force of the diaphragm spring acts on the pressure plate. This pushes the axially movable clutch disc against the flywheel. A friction lock-up connection is created. This allows the engine torque to be directed via the flywheel and the pressure plate to the transmission input shaft. Clutch open When the clutch pedal is pressed, the release bearing is moved against the diaphragm spring load in the direction of the engine. At the same time, the diaphragm springs are deflected over the support rings, and the force on the pressure plate is reduced. This force is now so low that the tangential leaf springs are able to move the pressure plate against the diaphragm spring load. This creates play between the friction surfaces, allowing the clutch disc to move freely between the flywheel and the pressure plate. As a result, the power flow between the engine and transmission is interrupted. LITERATURE REVIEW G. K. Gangwar, Madhulika tiwari, has research in "Modeling and Simulation in hydraulic Energy Saving System: An Overview" stated that by using the flywheel technology or hydraulic accumulator the International Journal of Management, Technology And Engineering Volume 8, Issue X, OCTOBER/2018 ISSN NO : 2249-7455 Page No:440
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DESIGN AND ANALYSIS OF FRICTION CLUTCH PLATE USING DIFFERENT
MATERIALS
1 KUNCHALA BRAHMAIAH, 2 O HEMALATHA 1 PG Scholar, Department of MECH, Muffakhamjah College of Engineering and Technology, Road no.3,
Banjarahills, Hyderabad, 500034. 2 Assistant Professor ME. (Ph.D), Department of MECH, Muffakhamjah College of Engineering and Technology,
Road no.3, Banjarahills, Hyderabad, 500034.
ABSTRACT
The clutch is one of the main components in
automobiles. The engine power transmitted to the
system through the clutch. The failure of such a critical
component during service can stall the whole
application. The driven main plate failed normally
during its operation due to cyclic loading. In design of
the friction clutches of automobiles, knowledge on the
thermo-elasticity a priori is very informative in the
initial design stage. Especially, the precise prediction
technique of maximum structural stress should be
requested in design of mechanical clutches for their
durability and compactness.
This project explains the Static structural analysis and
Modal analysis of the clutch plate by changing circle
diameter and applying two types of materials. This
project finds the stresses, deformations and frequencies
in failure region during operation. It also suggests
design modifications to improve the life time of the
clutch plate.
INTRODUCTION
A clutch is a mechanical device that engages and
disengages the power, transmission, especially from
driving shaft to driven shaft. Clutches are used
whenever the transmission of power or motion must
be controlled either in amount or over time (e.g.,
electric screwdrivers limit how much torque is
transmitted through use of a clutch; clutches control
whether automobiles transmit engine power to the
wheels).
In the simplest application, clutches connect and
disconnect two rotating shafts (drive shafts or line
shafts). In these devices, one shaft is typically attached
to an engine or other power unit (the driving member)
while the other shaft (the driven member) provides
output power for work. While typically the motions
involved are rotary, linear clutches are also possible.
In a torque-controlled drill, for instance, one shaft is
driven by a motor and the other drives a drill chuck.
The clutch connects the two shafts so they may be
locked together and spin at the same speed (engaged),
locked together but spinning at different speeds
(slipping), or unlocked and spinning at different speeds
(disengaged).
Fig.1: Clutch plate with mountings
Clutch closed
In the engaged state, the force of the diaphragm spring
acts on the pressure plate. This pushes the axially
movable clutch disc against the flywheel. A friction
lock-up connection is created. This allows the engine
torque to be directed via the flywheel and the pressure
plate to the transmission input shaft.
Clutch open
When the clutch pedal is pressed, the release bearing is
moved against the diaphragm spring load in the
direction of the engine. At the same time, the
diaphragm springs are deflected over the support rings,
and the force on the pressure plate is reduced. This
force is now so low that the tangential leaf springs are
able to move the pressure plate against the diaphragm
spring load. This creates play between the friction
surfaces, allowing the clutch disc to move freely
between the flywheel and the pressure plate. As a
result, the power flow between the engine and
transmission is interrupted.
LITERATURE REVIEW
G. K. Gangwar, Madhulika tiwari, has research in
"Modeling and Simulation in hydraulic Energy Saving
System: An Overview" stated that by using the
flywheel technology or hydraulic accumulator the
International Journal of Management, Technology And Engineering
Volume 8, Issue X, OCTOBER/2018
ISSN NO : 2249-7455
Page No:440
`
effective conservative energy can produce in the
hybrid vehicle.
Shrikant V. Bhoyar, G.D. Mehta, J.P. Modak, have
make designed for the load lifting application
Conference, 14th July 2013, Tirupati, India, ISBN:
978-81-927147-9-0 In this study, a simple
transmission system consisting gearbox, clutch and
engine are specially designed for lifting of load
application. Stiffness and equivalent stiffness of all the
three shafts have been calculated. Equivalent mass
moment of inertia is also calculated. From by using
this data, given by Prof. DOW, have calculated the
engagement duration period for the selected
transmission power system and the dissipation of
energy has been plotted during the engagement. The
excitation effect of torque and damping coefficient on
the amplitude of vibration is plotted for various values
of excitation speeds. Results shows increment in
damping coefficient and the amplitude of vibration
decreases with the decrease in the excitation of torque
and the vibration amplitude also be decreases.
Karanjkar A. S., Barve P. C., Adhav R. B., Pandey M.
D., Prof. Londhe B.C. Prof. Bhane A.B., "Modeling
and Simulation of Multi-Drive Clutch (ISSN 2347-
6435(Online) Volume 4, Issue 4, April 2015) they
have stated in this paper the design of clutch by
combining the operation of the centrifugal action in
the single plate clutch system of the transmission
mechanism to overcome the wearing effect when there
is the transmission of power from one shaft to that of
the other shaft that is from driving shaft to the driven
shaft.
P. Naga Karna, Tippa Bhimasankara Rao," Analysis of
Friction Clutch plate using FEA", e-ISSN: 2278-067X,