连发射击下某轻型高机动平台振动特性研究

Research on Vibration Characteristics of Light-duty High-mobility Platform Under Continuous Firing

以某轻型高机动平台为研究对象,应用空间“RRSS”四连杆机构硬点匹配技术,构建了双横臂螺旋弹簧独立悬架模型,基于欧拉梁单元特性建立了多段梁弹性车架模型,通过悬架K&C试验验证了柯曼太半经验轮胎刚度计算模型的准确性,并对轮胎垂直刚度进行了计算。在连发射击条件下,对该平台侧向射击工况进行了仿真计算,经与实弹射击试验车体横滚角测试曲线对比,验证了仿真模型的精度,为该武器系统瞄准线稳定提供理论依据。

Taking a light-duty high-mobility platform as an object of study,a double-wishbone spiral spring independent suspension model was constructed through the hard point matching technology of spatial“RRSS”four-bar linkage mechanism,with a multi-segment beam elastic frame model established based on the characteristics of Euler beam element.The accuracy of Semi-empirical tire stiffness calculation model was verified by the suspension K&C test,with the vertical stiffness of tire calculated.Under the condition of continuous firing,the simulated calculation of the lateral firing condition of the platform was carried out.The accuracy of the simulation model was verified by comparing the roll angle test curve of the vehicle body of the firing test with that of the live ammunition,which provides a theoretical basis for the stabilization of the aiming line of the weapon system.