According to a mini-car's drivetrain structure, an anti-torsional vibration inertial plate was designed and prepared. This inertial plate has the advantages of simple structure, easy processing, low cost and strong durability. Through the comparison of the noise test results before and after installation of the inertial plate, its effectiveness for controlling the interior booming noise induced by the torsional vibration was verified. Furthermore, in order to optimize the structure with reduction of the weight and improvement of the interior stress distribution as the target, an equivalent simulation model for torsional vibration analysis of the driveline was established. And the loading condition of the driveline with the inertial plate installed was obtained. This loading condition was employed as a boundary condition for finite element analysis of the driveline structure. Through the comparative analysis with the test results, the applicability of the equivalent model was confirmed. On this basis, using the experimental design and response surface analysis method, design scheme of the dimensions of the inertial plate with lighter weight and less stress was prepared. The capacity of the driveline for controlling the torsional vibration was verified by the simulation.%根据某微型车传动系布置情况,设计并试制、安装结构简单、加工方便、成本低廉、耐久性强的抗扭振惯量盘.通过安装惯量盘前后整车噪声对比试验,验证其对治理扭振引致车内轰鸣声学的有效性.进而,为优化其结构设计以减轻重量并改善内部应力状态,建立传动系扭振当量仿真模型以获取惯量盘装车状态下的受力情况,旨在为有限元结构分析提供受力边界条件.并通过与相关试验结果的对比分析,确认这一当量模型的适用性.以此为基础,采用实验设计以及响应面分析方法,找寻到质量更轻、应力更小的惯量盘尺寸设计方案.经仿真验证,其抗扭效果仍保持良好.
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