针对动力总成橡胶悬置前期主簧设计阶段，不能快速确定所需静刚度下的悬置主簧参数以及考虑使其疲劳寿命提高的问题，提出了一种利用田口设计和有限元分析的方法，利用Minitab做橡胶悬置参数间的正交实验设计，在ABAQUS中建立有限元模型，对悬置的垂向（V向）静刚度进行分析，以满足悬置设定目标刚度的条件下，提高疲劳寿命次数的目标。通过回归分析，得到垂向静刚度、疲劳寿命与各参数之间的关系，并建立刚度与疲劳寿命的响应函数，使用响应优化器，得到主簧的参数，通过有限元分析，得到在误差允许的静刚度范围内，悬置的疲劳寿命提高了62.76%，对后续橡胶悬置前期设计开发提供参考。

This paper addresses the issue of not being able to quickly determine the parameters of the main spring under the required static stiffness during the early design stage of the rubber suspension of the powertrain, and improving its fatigue life. A method using Taguchi design and finite element analysis is proposed. Orthogonal experimental design of rubber suspension parameters is conducted using Minitab, and a finite element model is established in ABAQUS to analyze the vertical (V-direction) static stiffness of the suspension. The goal is to improve the number of fatigue lives under the condition of meeting the set target stiffness of the suspension. Through regression analysis, the relationship between vertical static stiffness, fatigue life, and various parameters is obtained, and the response function of stiffness and fatigue life is established. Using the response optimizer, the parameters of the main spring are obtained. Through finite element analysis, it is found that the fatigue life of the suspension has increased by 62.76% within the allowable range of static stiffness, providing a reference for the early design and development of rubber suspensions.