Abstract: The powertrain mounting system is the main component used to reduce the vibration transmission of the powertrain, which plays an important role in the improvement of driving quality. On the basis of summarizing the existing natural frequency and decoupling rate calculation and analysis theory of powertrain suspension system, a series of mathematical models suitable for programming technology suspension system design are established based on Matlab, and realized by GUI interface the stiffness parameters of the suspension system, the inertia parameters of the powertrain and the input of coordinate parameters can improve the development efficiency of the suspension system, and have good practicability and comprehensive promotion and application.

Key words: Mounting system; Natural frequency; Decoupling rate; Matlab

摘要： 动力总成悬置系统是用于降低动力总成振动传递的主要部件，对于驾乘品质的提升有着重要的作用。在总结已有的动力总成悬置系统的固有频率及其解耦率计算分析理论的基础上，基于 Matlab 建立了适合于编程技术的 悬置系统设计的一系列数学模型，并借助 GUI 界面实现悬置系统的刚度参数、动力总成的惯性参数以及坐标参数输入，可以很好地提升悬置系统的开发效率，具有良好的实用性，能全面推广运用。

关键词: 悬置系统；固有频率；解耦率；Matlab