Research on the design, performance and engineering application of a novel suspension structure

Abstract

As an inertial element, the inerter has a large inertance-to-mass ratio and a small installation volume which makes it have important prospect in the suspensions of the heavy vehicles. Based on the dynamic vibration absorber (DVA) and inerter, the inerter-based active vibration–absorption suspension (IBAVAS) is proposed. The parameters of IBAVAS are configured with the multi-objective NSGA-II algorithm, and the control strategy selects the sky-groundhook algorithm. In the frequency domain, it is proved that the movement performance of IBAVAS is superior to those of traditional passive suspension (TPS) and sprung-DVA passive suspension (SDVAPS). In addition, the mode shapes and parameter sensitivity analysis of IBAVAS are investigated. The engineered configuration of IBAVAS (i.e., EIBAVAS) employs a fluid inerter to generate inertial force with the generation of the parasitic damping force. Configure parameters for EIBAVAS, and then it can be proved that the performance of EIBAVAS has not degraded significantly compared with IBAVAS and is not sensitive to the value range of the parasitic damping coefficient. In summary, EIBAVAS can widen the adjustment bandwidth of active suspension for road excitation frequency and is reasonable and easy to implement in engineering, thus providing a theoretical basis for the future experiment.