分析聚合物轮牙偏移的计算模型
Aljaž Ignatijev1, Srečko Glodež1, Janez Kramberger1
1Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia.
Polymers
|March 13, 2024
概括
本研究介绍了聚合物轮牙偏移的计算模型,在较高负载下表现优于标准指南. 该模型准确地预测了利用超弹性特性和多个牙网格进行增强的聚合物轮分析的偏移.
科学领域:
- 机械工程 机械工程
- 材料科学 材料科学 材料科学
- 计算力学 计算力学 计算力学
背景情况:
- 聚合物轮的硬度低于金属轮,因此需要专门分析牙的偏斜.
- 现有的分析方法可能无法完全捕捉聚合物轮在负载下的复杂行为.
研究的目的:
- 开发和验证用于分析聚合物轮中牙偏移的计算模型.
- 为了确定最佳的数值模型参数,特别是模拟的牙数量,进行精确的聚合物轮分析.
- 将模型的预测与经验数据和既定准则进行比较.
主要方法:
- 开发一个计算模型,将聚合物 (POM) 的超弹性材料特性和钢轮的线性弹性特性结合起来.
- 模拟一个非滑的,摩擦接触之间的网格轮对.
- 基于VDI 2736指导方针,使用轮轮对对模型的评估,并将结果与经验数据进行比较.
主要成果:
- 与标准指导方针相比,计算模型在预测牙偏移方面表现出更高的准确性,这归因于使用超弹性材料特性和多牙网状模拟.
- VDI 2736的计算显示了可比的结果,但在更高负载条件下显示了更大的偏差.
- 提出的计算方法被证明更适合分析聚合物轮牙偏移,特别是在高负荷下.
结论:
- 开发的计算模型提供了一个比传统方法更准确的方法来分析聚合物轮牙偏移.
- 纳入超弹性材料行为和多牙网格对于精确模拟聚合物轮至关重要.
- 这种模型为工程应用提供了更高的可靠性,涉及在显著负载下运行的聚合物轮.
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