中文摘要：

为了回收悬架的振动能量,提出了一种弹簧-减振器-直线电机并联的混合式悬架结构。针对直线电机馈能过程存在的死区现象,设计了DC/DC升压电路,以传统被动悬架耗散的能量为基准,得到了同一行驶工况下馈能效率的显式表达,同时,为兼顾系统动力学性能,研究了减振器阻尼对馈能性能和隔振性能的影响规律,并通过折中设计确定了减振器最优阻尼系数,建立了混合馈能悬架动力学模型,进行了其隔振性能和馈能性能的对比仿真分析。结果表明,混合馈能悬架可有效协调车辆馈能性和隔振性。最后,在仿真的基础上,进行了混合馈能悬架的试验研究,试验结果与仿真结果基本吻合,验证了仿真结果的正确性。

英文摘要：

In order to harvest the vibration energy of suspension and make it with fail-safe characteristics,a hybrid suspension structure with spring,damper and linear motor in parallel was proposed. According to the dead zone in the harvesting process of linear motor,a DC / DC boost circuit was designed so that the electromagnetic damping force can still be provided by the linear motor in the process of dead zone.Based on the energy dissipation of traditional passive suspension, an explicit expression of energy efficiency in the same driving cycle was obtained. And the energy efficiency of suspension was used as evaluation index of suspension. Meanwhile,to take into account of the performance of system dynamics,the influence of damping value on energy regeneration performance and vibration isolation performance was studied,and the optimal shock absorber damping value was determined by compromise design.A hybrid energy regenerative suspension dynamic model was established, the vibration isolation performance and energy regeneration performance of suspension based on optimal damping of vibration damper were compared and analyzed. The simulation results showed that the hybrid energy regenerative suspension can effectively coordinate the energy efficiency and vibration isolation of the vehicle. Finally,based on the simulation,the experimental study on hybrid energy regenerative suspension was carried out on the INSTRON 8800 numerical control hydraulic servo exciting test bench. The test results were in agreement with the simulation results,which verified the correctness of simulation results.