Force Couple System: Mechanics Problems & Practical Examples

[chandran]

In mechanics problems why always the force systems are replaced by force and couple systems. any practical example is available?

 

[radou]

In mechanics problems why always the force systems are replaced by force and couple systems. any practical example is available?

Perhaps you meant why force and couple systems are replaced with equivalent resulting systems?

 

[kyle8921]

Force couple systems are often used in mechanics problems because they provide a more efficient and concise way to represent a system of forces. Instead of having to consider each individual force separately, a force couple system combines forces into a single force and a couple, reducing the complexity of the problem.

A practical example of a force couple system can be seen in the operation of a wrench. When turning a bolt, the force applied by the hand exerts a torque on the bolt, causing it to rotate. This torque is created by the combination of a force and a couple, with the force being applied by the hand and the couple being created by the distance between the hand and the bolt.

Another example is the steering mechanism of a car. When turning the steering wheel, a force is applied to the steering column, which creates a torque on the wheels. This torque is a combination of a force and a couple, with the force being applied by the driver's hands and the couple being created by the distance between the driver's hands and the steering column.

Overall, force couple systems are a useful tool in mechanics problems as they simplify the analysis of complex forces and allow for a more streamlined solution.