Performance analysis of cab’s suspension systems of a tractor on vehicle ride comfot with air spring and spring elemets
Keywords:
Semi-trailer truck, Tractor, Air spring suspension, Spring suspension, Cab, Dymamic model, Ride comfortAbstract
In order to evaluate the performance of two cabin suspension systems of tractor. A half-vehicle dynamic model including driver's seat, cabin, tractor frame and axles is established under random road excitations. Two characteristics of the air spring and spring suspension of cab are respectively surveyed and compared their effect to ride comfort based on ISO 2631-1. Matlab/Simulink software is used to simulate the vehicle dynamics and evaluate the ride performance of cab two suspension systems. The study results show that the air spring suspension system significantly improved ride comfort of cab comparing with spring suspension system of cab. In addition, the study results are the theoretical basis to optimize the design parameters of cab suspension system in the direction of improving ride comfort.
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