Mechanical Engineering - Automobile Engineering - Discussion

The components of each and every machine are designed with a "Factor Of Safety". For any component the operating load may vary and even sometimes go beyond its designed load limits.

In general, as you know in case of an automobile they main power transmission component being the clutch, it will be subject to varied extreme loads as well (in case of sudden accelerations). Hence to provide optimum performance and life, it is designed for 150% instead of 100%.

It is completely basic physics. Clutch works on the principle of friction. From basic physics we have Torque = Force*Perpendicular distance. And we know that frictional force will increase upon increasing the applied force. So indirectly frictional torque will increase.

If we design a clutch for the required torque then there is a chance of slip. SO, it is designed for the higher friction.

While designing weight of component, manufacturing time and life of component are also matters along with (FOS) i.e Factor of Safety, and by calculations every values are considered.

If we take 200% or 175% of course it will require more material due to the strength i.e. more weight. So, by calculations 150 can be acceptable.

A clutch is usually designed to transmit maximum torque which is 150 percent of the maximum engine torque.

This is to ensure that the clutch can handle peak loads and prevent slippage, particularly during high-demand situations such as acceleration or when starting from a stop.

Well, I know that the clutch connects and disconnects the engine torque to and from the transmission system.

So, I think what the engine produces is what the clutch transfers. Unless I can understand that it has some multiplication effect. Am I right?

Yes factor of safety matters in this query and because 150 % we should understand it logically considering the FOS. Instead of 100% or even 175 200 etc.

There is no roll of clutch plate in torque up down. It gives only same power trasmit which is given by eng. Torque change by only gears.

Clutch is not used to provide torque to engine but it is used to step up the torque which is provide by the engine.

It is designed for transmit 150% torque for design purpose But in actual working it transmit better power.

By using clutch only more torque is produced, by changing of transmission rate more torque is varied.