The research of supine human body vibration on sleeper coach

A sleeper coach freedom vibration system model is established, in order to simulate the frequency response on a recumbent human body´s head, buttocks and legs under the condition of random input of road irregularity from the front and rear wheels of sleeper coach. Based on the model, the vibration analysis of recumbent human body and calculation results are compared with these of the road tests, then the conclusion will be used for providing theory and reference data for further research of improving sleeper coach riding comfort.