Determine the amplitude of vibration of the trailer in Prob. 22-60 if the speed v = 15 km/h.

Prob. 22-60

The 450-kg trailer is pulled with a constant speed over the surface of a bumpy road, which may be approximated by a cosine curve having an amplitude of 50 mm and wave length of 4 m. If the two springs s which support the trailer each have a stiffness of 800 N/m, determine the speed which will cause the greatest vibration (resonance) of the trailer. Neglect the weight of the wheels.

Transcribed Image Text:

-2m- -2m- 100 mm