步兵战车行驶动力学模型仿真与修正

Simulation and Updating of Infantry Combat Vehicle Driving Dynamics Model

建立了某型步兵战车行驶动力学仿真模型并基于实车行驶试验建立支持向量机响应面对仿真模型进行了修正。根据仿真路面与约束关系对步兵战车行驶动力学模型进行了仿真计算;提取典型节点行驶过程中的垂向加速度功率谱密度相似度作为目标函数,引入支持向量机响应面作为修正算法,修正了步兵战车悬挂与座圈刚度-阻尼系数。修正结果表明基于支持向量机响应面的模型修正方法大幅提高了车体动力学模型精度,更准确的反映了步兵战车行驶过程中的机构动态特性。

The car-body driving dynamics model was built up and updated by support vector machine response surface method based on driving experiment. The infantry combat vehicle driving dynamics model was simulated and calculated according to the joints and forces. The equivalent stiffness and damping of suspension and barbette circle were updated by support vector machine response surface method taking the vertical accelerations PSI） comparability of typical nodes on turret as target Ji^nction. The updating result shows that the model updating method can increase the precision of car-body dynamic model and reflect the framework dynamic characteristic of infantry combat vehicle on move well and truly.