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中文摘要：
在连接管路与节流孔之间设置1个辅助空间,以解决以往空气弹簧非线性模型中不能处理节流孔与连接管路之间衔接的问题.按此建模思路,基于流体力学和热力学理论,根据节流孔、连接管路、差压阀和高度控制阀进出气体的质量流量相等原则,建立空气弹簧非线性模型（简称TPL-ASN模型）.采用自编的基于TPL-ASN模型的空气弹簧动态特性仿真软件（简称ASDS软件）对某高速动车组的空气弹簧系统进行静、动特性仿真分析,并与试验结果以及基于Krettek空气弹簧非线性模型和Docquier空气弹簧非线性模型的仿真结果进行对比.结果表明：Docquier空气弹簧非线性模型和Krettek空气弹簧非线性模型的仿真结果与试验结果存在较大差异,而TPL-ASN模型的仿真结果与试验结果相吻合,能够准确模拟空气弹簧系统的非线性动态特性.
英文摘要：
An auxiliary space was set up between the connecting pipe and the orifice to solve the linkage problems in the previous nonlinear models of air spring.According to the above-mentioned modelling solutions as well as the rule of in-out equivalent gas mass of the orifices,the connecting pipes,the differential valves and the height adjustment valves,a new nonlinear model of air spring （TPL-ASN model for short） was set up based on the theories of fluid mechanics and thermodynamics.Taking an air spring system of a high-speed EMU as simulation example,the static and dynamic characteristics were calculated by the selfdesigned air spring dynamic characteristics simulation software （ASDS software for short） based on the TPL-ASN model.By comparisons with the experimental results and the simulation results of Krettek and Docquier nonlinear air spring models,it shows that the simulation results of the Docquier model and the Krettek model have great difference with the experimental results,but the simulation results of TPL-ASN model are in good agreement with the experimental results.Thus the TPL-ASN model can accurately simulate the nonlinear dynamic characteristics of air spring systems.
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