考虑接触刚度的含间隙铰接副动态磨损分析

发布时间：2018-05-04 16:43

本文选题：接触刚度 + 弹簧阻尼　；参考：《西安交通大学学报》2016年05期

【摘要】：针对大多数含间隙铰接副的磨损计算都非常复杂,精度和效率不能兼得,且很少能够与含间隙铰接副系统的动力学分析动态结合起来考虑表面接触刚度对磨损影响的问题,提出了一种新的含间隙铰接副磨损分析方法。基于无质量杆-弹簧阻尼模型建立考虑接触刚度影响的含间隙铰接副系统动力学分析模型,利用非对称Winkler弹性基础模型计算接触压力分布,懫用Archard磨损理论计算接触表面磨损量,对接触表面轮廓实时更新得出含间隙铰接副的动态磨损量。分析结果表明,在表面接触刚度较小时含间隙铰接副的动态磨损严重,且随系统转速的变化呈现出不同的变化趋势,反映了不同接触刚度下含间隙铰接副的动态磨损趋势。该方法计算精度和计算效率较高且充分考虑了表面接触刚度对含间隙铰接副动态磨损的影响,对含间隙铰接副系统的设计和动力学分析及磨损预测具有一定的指导意义。
[Abstract]:The wear calculation of most clearance hinge pairs is very complex, and the accuracy and efficiency can not be combined, and it is seldom able to combine the dynamic analysis of the joint with a clearance joint system to consider the effect of the surface contact stiffness on the wear and tear. A new method of wear analysis based on the clearance joint pair is proposed. The spring damping model establishes the dynamic analysis model of the system with the influence of contact stiffness. The contact pressure distribution is calculated by the asymmetric Winkler elastic foundation model. The contact surface wear is calculated by the Archard wear theory. The dynamic wear of the contact surface is updated in real time. The results show that the dynamic wear of the articulated pair with the clearance of the surface contact stiffness is serious, and it shows a different trend with the change of the speed of the system, which reflects the dynamic wear trend of the joint with the clearance joint under the different contact stiffness. The calculation accuracy and the calculation efficiency are high and the surface contact stiffness is fully considered for the gap containing gap. The influence of dynamic wear of hinged joints is of guiding significance to the design, dynamic analysis and wear prediction of articulated joints with clearances.

【作者单位】：西安交通大学现代设计及转子轴承系统教育部重点实验室;
【基金】：国家自然科学基金资助项目(51175409)
【分类号】：O343.3

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