Nonlinear Coupled Dynamic Modelling of Driver-seat-cab System and Biomechanical Behaviour Prediction

The biomechanical responses of the driver-truck system in a dynamic environment have become significant concern design and control trucks. When evaluating riding comfort seat-cab system, it is necessary to predict driver’s different parts directions. However, there no reliable model method for effectively predicting response characteristics driver-seat-cab system. Aiming at such problem, firstly, based on 7 DOF (degree-of-freedom) seated human biodynamic established previously, 10 non-linear was created, its vibration differential equations were established. Secondly, signals simulation verification collected through road test using truck. Thirdly, Newmark-? integration method, specific solution process given. damping coefficients front rear dampers cab suspensions measured with bench test. Moreover, simulations conducted parameters, taking frame as inputs. results show that agree results, proving can responses. Finally, some useful conclusions obtained analysis. provide technical support evaluation, optimization design, suspension