stiffness (in N/m) of the required mounting pad

Q1. An industrial press is mounted on a rubber pad to isolate it from its foundation. If the rubber pad is compressed 5 mm by the self weight of the press, find the natural frequency of the system both in rad/s and in Hz.

vibrations, show all steps and solutions

1- I need answer of all sub-parts questions. Thanks   The figure shows a simple model of a motor vehicle that can vibrate in the vertical direction while traveling over a rough road. The road surface varies sinusoidally with an amplitude of 0.01 m and a wavelength of 6 m. The vehicle has a mass of 1007 kg. The suspension system has a total spring constant of 40 kN/m and a damping coefficient of 20 kN.s/m. The vehicle average speed is v = 100 km/hr. The objective is to determine the vehicle steady-state displacement amplitude as well as the respective transmitted force.   Calculate the forcing frequency of the pumpy road. Calculate the natural frequency of the vehicle SDOF system. Calculate the damping ratio of the vehicle SDOF.

The natural frequency of an undamped vibrating system is 100 rad/s. A damper with a damping factor of 0.8 is introduced into the system. What is the frequency of vibration of the damped system in rad/s?

i need the answer quickly

parts A & B - SOLVE CAREFULLY!! Please Write Clearly and Box the final Answer(s) for both

61% ooredoo l 46 ll QO O0 OMANTEL m= 100 Kg, K=40KN/m and C=400 N-m-s/rad. The natural frequency in rad/s is Choose... + The damping ratio of the Choose... + system is Previous page Next page III

part C and D

The displacement curve of the car body after the bump is shown in Fig.2.Find the natural frequency and damping ration of the system.