液压混合动力汽车动力单元设计

本资料包含pdf文件1个，下载需要1积分

为了减少能量损耗及液压噪声，对其液压泵／马达进行改造，并设计了与其配套的大口径常开型高速充液阀，从而完成动力单元的设计。在ANSYs／FLUENT下对内部流场进行数值模拟，并在ANSYS／LS―DYNA下对阀芯与阀座的接触应力进行了分析。根据仿真结果，对动力单元进行了优化设计。试验显示系统产生的噪声明显下降。

In order to reduce the energy consumption and the hydraulic noise, the paper modifies the hydraulic pump/motor and designs a novel high-speed filling valve for the system, which is normally open and large-diameter. The modified pump/motor and the valve constitute the power unit. In the ANSYS/FLUENT, the paper simulates numerically the flow field in the high-speed filling valve. By the use of ANSYS/LS-DYNA the paper analyzes the impact stress of the valve core. According to the simulation results, the power unit is optimized. Tests show that the noise decreases significantly in the vehicle utilizing the power unit.

高速充液阀，噪声，液压混合动力汽车，CFD，CAE，high-speed filling valve，noise，hydraulic hybrid vehicle，CFD，CAE。

液压混合动力汽车动力单元设计。