By means of spectral analysis method, the problem of dynamic loads acting on the load-carring components of rear bogie suspension system of a truck is analysed in this paper.

本文采用功率谱分析法讨论了作用在三轴汽车平衡悬挂承载部件上的动载荷问题。

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Through simulation, it is shown that ride comfort index of single car is greater than that of the whole train under the same suspension parameter of the bogie.

仿真结果还发现，在转向架悬挂参数相同的情况下，单一车辆的运行平稳性指标大于列车的运行平稳性指标。

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And on the basis of the criterion GB/T17426-1998, the dynamic performance of the bogie was calculated and analyzed, and the suspension system is optimized.

利用多刚体系统动力学软件，根据GB/T17426-1998标准对转向架的动力学性能进行计算和分析，对悬挂系统进行优化设计。

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