基于非概率模型的斜齿轮磨损可靠性优化设计  

Wear Reliability Optimization Design of Helical Gear based on Non-probabilistic Model

作　　者：张勇 梅林 何锟 王建方 ZHANG Yong;MEI Lin;HE Kun;WANG Jianfang(AVIC Hunan Power Machinery Research Institute,Zhuzhou,China,412002;Zhongkexin Engineering Consulting(Beijing)Co.,Ltd.,Beijing,China,100000;School of Mechanics,Civil Engineering and Architecture,Northwestern Polytechnical University,Xi′an,China,710072)

机构地区：[1]中国航发湖南动力机械研究所,湖南株洲412002 [2]中科信工程咨询(北京)有限责任公司,北京100000 [3]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《热能动力工程》2024年第6期177-184,共8页Journal of Engineering for Thermal Energy and Power

摘　　要：为解决数据贫乏下斜齿轮磨损可靠性优化设计问题,采用非概率区间模型描述不确定性参数,基于Hertz接触理论和Archard磨损理论,提出一种基于非概率模型的斜齿轮磨损可靠性优化设计方法。首先建立斜齿轮齿面磨损有限元分析模型,分析齿轮啮合传动过程中主动轮齿面接触应力及磨损基本规律。然后考虑齿轮几何尺寸、材料性能、载荷工况的不确定性,最终建立具有接触强度、磨损量非概率可靠性指标约束的可靠性优化模型并进行求解。结果表明:在满足非概率可靠性指标约束条件下,齿轮副体积减少25.11%,磨损量下降了16.09%,验证了所提方法的有效性。To solve the problem of wear reliability optimization design of helical gear with data poorness,in this paper,a non-probabilistic interval model was used to describe the uncertainty parameters,and a wear reliability optimization design method of non-probabilistic model-based helical gear was proposed based on the Hertz contact theory and Archard wear theory.Firstly,a finite element analysis model of helical gear tooth surface wear was established to analyze contact stresses and wear damage of master driving gear tooth surface in the process of gear engagement.Then,considering the uncertainty of gear geometry,material properties and loading conditions,a reliability optimization model with the constraints of non-probabilistic reliability indexes of contact strength and wear was established and solved.The results show that the volume of the gear pair is reduced by 25.11%,and the wear is reduced by 16.09%under the constraints of the non-probabilistic reliability index,which verifies the effectiveness of the method proposed in this paper.

关 键 词：齿轮 磨损 可靠性 非概率 优化设计 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]