某防暴车举升云台机液联合仿真及优化

Simulation and Optimization of the Elevating Platform of Anti-Hijacking Vehicles Based on the Co-Simulation Model

为了研究某防暴车车内举升作业云台的运动性能,分别利用多刚体动力学软件ADAMS和液压系统仿真软件AMESim建立了其虚拟样机模型和液压回路模型,通过软件接口技术建立了co-simulation模型,对其进行机液耦合仿真。结果发现举升作业云台剪叉升降机构油缸举升瞬间推力偏大,液压系统压力过高。因此结合剪叉机构结构特点,在ADAMS中对其进行灵敏度分析确定设计变量,以举升瞬间推力和油压最小为目标对油缸铰点位置进行优化。优化后举升油缸推力减小了27%,最大油压下降了16%,提高了举升作业云台的可靠性。

In order to study the movement performance of the elevating platform in an Anti-Hijacking Vehicle, the virtual prototype model and the hydraulic circuit model of the elevating platform was respectively established by using multi-rigidbody dynamics software ADAMS and hydraulic system simulation software AMESim. Then the co-simulation model was established through the software interface technology and the co-simulation simulation was performed. The results demonstrated that the force of the scissor elevating platform was big and the hydraulic system pressure was too high. So after the analysis of its structural features, the sensitivity analysis was carried out to determine the design variables in ADAMS. The cylinder hinge point location is optimized by taking the minimum of the force and the pressure as the target. The force of the scissor elevating platform decreased by 27% and the hydraulic system pressure decreased by 16% after optimization, and work reliability was improved.