A trailer has 1000 kg mass when it is fully loaded and 250 kg when it is empty. The spring stiffness of the suspension is 350 kN/m. The damping ratio is 0.5 when the trailer is fully loaded. The speed of the trailer is 100 km/h. The road varies sinusoidally with a wave length of 5 m. a) Determine the amplitude ratio, X/Y, when the trailer is loaded, and when it is empty. b) Determine the resonance speed (km/h) when the trailer is fully loaded, and when it is empty.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A trailer has 1000 kg mass when it is fully loaded and 250 kg when it is empty. The spring
stiffness of the suspension is 350 kN/m. The damping ratio is 0.5 when the trailer is fully
loaded. The speed of the trailer is 100 km/h. The road varies sinusoidally with a wave length
of 5 m.
a) Determine the amplitude ratio, X/Y, when the trailer is loaded, and when it is empty.
b) Determine the resonance speed (km/h) when the trailer is fully loaded, and when it is
empty.
Transcribed Image Text:A trailer has 1000 kg mass when it is fully loaded and 250 kg when it is empty. The spring stiffness of the suspension is 350 kN/m. The damping ratio is 0.5 when the trailer is fully loaded. The speed of the trailer is 100 km/h. The road varies sinusoidally with a wave length of 5 m. a) Determine the amplitude ratio, X/Y, when the trailer is loaded, and when it is empty. b) Determine the resonance speed (km/h) when the trailer is fully loaded, and when it is empty.
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