A dynamic analysis model was established for a 2-stage planet gear train in which manufacturing and assembly errors were considered.

建立了两级星型齿轮传动系统的动力学均载分析模型，考虑了各构件的制造误差与安装误差。

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A dynamic analysis model in which the gear error and the time-varying stiffness and backlash are included is established for a 2-stage star gear train.

建立了两级星型齿轮传动系统的非线性动力学分析模型，模型中考虑了系统的综合啮合误差、时变啮合刚度以及齿侧间隙。

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This paper sets up a dynamic analysis model of subway vehicle-elastic fastener and analyzes the influence of fastener stiffness, train operation speed on the wheel-track force.

为分析弹性钢轨扣件轨道的轮轨作用力，通过建立地铁车辆弹性扣件动力分析模型，分析了扣件刚度、列车运行速度等对轮轨作用力的影响。

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Tax reform done right should be revenue neutral using standard CBO static analysis, but a dynamic model would predict a large revenue windfall from the overall increase in investment and economic efficiency.

WSJ: Review & Outlook: The Senate Gets Dynamic