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出 处:《装甲兵工程学院学报》2017年第3期39-45,74,共7页Journal of Academy of Armored Force Engineering
摘 要:为了准确描述履带车辆的振动特性,通过对履带车辆行动系统拓扑结构的分析,建立了柔性履带模型和刚性履带模型,采用特征值方法计算了履带环的固有振动特性,并利用功率谱方法对仿真结果进行了对比,分析了履带对车辆振动特性的影响,最后通过实车试验对所建模型的准确性进行了验证。结果表明:履带对车辆振动的影响主要包括履带环的低阶固有振动和与履带板节距相关的高频振动;2类模型的计算误差在2%~27%之间,说明履带对车辆系统振动的影响范围较大,根据不同工况可选择合适的模型进行计算。In order to accurately describe the vibration of tracked vehicle,the flexible track model and the rigid track model are built up through the analysis of the topological structure of operation system of tracked vehicle. The inherent vibration performance is calculated by eigenvalue analysis. Power spectrum method is used to compare the simulation result and analyze the effect of track on the vibration of vehicle.In the end,real vehicle test is used to verify the accuracy of the model. The results show that the effect of track on the vibration of vehicle mainly include the inherent vibration of track circuit and the high frequency vibration related to track pitch; the error between two models is 2%-27%,which shows that the track affects the vibration response of vehicle in great scope,and different models can be chosen according to different working conditions.
关 键 词:履带 振动响应 动力学仿真 履带板节距 功率谱密度 特征值分析
分 类 号:TJ810.33[兵器科学与技术—武器系统与运用工程] TP391.9[自动化与计算机技术—计算机应用技术]
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