Abstract:

During the design of Propeller Shaft, CAE method is used to simulate the mode and check the vibration. There is a Propeller Shaft that the first mode has met the target, but having resonance problem on full vehicle when test. In this paper, the CAE method was improved, and the structure was optimized to remove the problem mode. According to the test result and subject evaluation, a favorite effect was reached.

摘要：

考察汽车传动轴振动特性的指标为1阶约束模态的频率。由此，某商用车传动轴在设计阶段进行模态仿真分析，虽然满足了设计要求，但在整车验证阶段却出现共振，产生了车内共鸣音。针对该问题，改进传动轴模态分析方法，并对传动轴结构进行优化设计，消除共振模态。通过主观评价和噪声测试证实效果良好。

关键词: 振动与波, 仿真, 有限元分析, 传动轴