Use the force shown in Figure P4.91 as an approximation to the force provided by the punch press during its operation. Rework Example 4.17 for the excitation.

Data From Example 4.17:
The 500-kg punch press is to be mounted on an isolator such that the maximum of the repeating force transmitted to the floor is 1000 N. Determine the required static deflection of an isolator, assuming a damping ratio of 0.1. What is the resulting maximum deflection of the isolator during the punching operation?

4000 N 0.1 s 0.3 0.4 s 1s 1.1 s FIGURE P4-91