电机的层层堆的动态和准静态刚度的表征
V Szabó1, B Vehovszky1, Z G Gazdagh1
1Széchenyi University, Egyetem tér 1, Győr, 9026, Hungary.
Heliyon
|November 11, 2024
概括
精确的电机模拟需要精确的材料模型. 这项研究发现,层堆的静态和动态测试之间存在显著的刚度差异,突出了需要适当的测量方法的需要.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 汽车工程 汽车工程
背景情况:
- 准确的材料模型对于电机设计至关重要,特别是用于模拟结构强度和噪音,振动和强度 (NVH).
- 电机中必不可少的组件,分层堆,由于它们在负载下复杂的行为,造成了建模挑战.
- 现有的模拟方法可能无法完全捕捉这些堆的动态特性,从而影响设计的准确性.
研究的目的:
- 为了研究在不同预装条件下汽车层堆的机械行为.
- 为了比较从准静态和动态实验方法中得出的刚度值.
- 识别和解决影响电机模拟准确性的差异.
主要方法:
- 在多个预装载级别的未经修改的汽车层堆上进行了准静态机械测试.
- 在相同的预装条件下,在相同的层层堆上进行动态机械实验.
- 分析和比较从静态和动态测试方法获得的刚度数据.
主要成果:
- 通过静态和动态实验测量的刚度值之间发现了显著的差异.
- 观察到预负载水平影响静态和动态测试中的测量刚度.
- 证明,将静态硬度值直接替换为动态硬度值 (或相反) 会引入相当大的模拟不准确性.
结论:
- 静态和动态刚度测量在汽车层堆中产生了截然不同的结果.
- 使用不适当的刚度数据 (例如,静态模型中的动态) 会导致错误的模拟结果.
- 在电机开发中,使用测量特定的刚度值对于精确的结构和NVH模拟至关重要.
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