本文运用Solidworks 软件对汽车变速器检测试验台架进行了三维建模，通过ANSYS软件进行瞬态分析和模态分析，得到了汽车变速器检测试验台架的应力云图，识别出试验台架结构的模态参数，得出台架的固有频率和振型特征。为进一步研究汽车变速器检测试验台振动、疲劳和噪声等奠定了基础，也为汽车变速器检测试验台架结构的优化设计提供了参考依据。

Three-dimensional modeling of automotive transmission test rig is established based on Solidworks in this paper. The stress nephogram, modal parameters, the natural frequencies and vibration features of automotive transmission test rig are identified through transient Analysis and modal analysis based on ANSYS. The results lay the foundation to further study on vibration, fatigue, noise and also provide reference for structural optimization design of automotive transmission test rig.