中文摘要：

在分析液压冲击器工作原理的基础上，利用多学科领域复杂系统仿真平台AMESim搭建了气液联合式液压冲击器的仿真模型．通过设定不同仿真参数，得到不同工况下活塞的位移、速度、加速度及前后腔压力变化曲线．仿真结果可为液压冲击器元件的选型和参数优化提供依据．

英文摘要：

Based on the analysis of the operating principle for the hydraulic impactor, one simulation model of gas-liquid united hydraulic impactor was built with AMESim software. By setting different simulation parameters, curves of displacement, velocity, acceleration and cavity pressure were obtained under different working conditions. The simulation results provide a reliable basis for component selection and parameter optimization of hydraulic impactor.