基于摩擦热流-滞后热通量多热源的塑料齿轮啮合温度研究
Analysis of Meshing Temperature of Plastic Gear based on the Multi Heat Source of Frictional Heat Flux and Hysteresis Heat Flux
- 机械传动 2021年45卷第2期 页码：6-15
- 作者机构：
1.重庆大学 机械传动国家重点实验室， 重庆 400044
- 作者简介：
余国达（1993— ），男，江西抚州人，硕士研究生，主要研究方向为塑料齿轮的承载与失效机理。
刘怀举（1986— ），男，山东曲阜人，副教授，博士生导师，主要研究方向为高性能齿轮抗疲劳设计制造。
- 基金信息：国家重点研发计划(2018YFB2001300┫重庆市自然科学基金┣cstc2019jcyj-zdxmX0007)
DOI：10.16578/j.issn.1004.2539.2021.02.002
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余国达,刘怀举,朱才朝等.基于摩擦热流-滞后热通量多热源的塑料齿轮啮合温度研究[J].机械传动,2021,45(02):6-15.
Yu Guoda,Liu Huaiju,Zhu Caichao,et al.Analysis of Meshing Temperature of Plastic Gear based on the Multi Heat Source of Frictional Heat Flux and Hysteresis Heat Flux[J].Journal of Mechanical Transmission,2021,45(02):6-15.
余国达,刘怀举,朱才朝等.基于摩擦热流-滞后热通量多热源的塑料齿轮啮合温度研究[J].机械传动,2021,45(02):6-15. DOI： 10.16578/j.issn.1004.2539.2021.02.002.
Yu Guoda,Liu Huaiju,Zhu Caichao,et al.Analysis of Meshing Temperature of Plastic Gear based on the Multi Heat Source of Frictional Heat Flux and Hysteresis Heat Flux[J].Journal of Mechanical Transmission,2021,45(02):6-15. DOI： 10.16578/j.issn.1004.2539.2021.02.002.
摘要
啮合温度影响塑料齿轮服役过程中的疲劳、磨损、噪声等服役行为，在塑料齿轮的力学响应和性能预测时不可忽略。为预测塑料齿轮的啮合温度，考虑聚甲醛（POM）材料的温度-模量效应和摩擦热流-滞后热通量多热源效应，建立了塑料齿轮啮合温度场有限元数值模型。基于POM齿轮副热黏弹接触分析，获取摩擦热流和滞后热通量作为热源；通过啮合温度与材料弹性模量耦合迭代，获取考虑温度-模量效应后的齿轮稳态啮合温度和齿面闪温。稳态啮合温度和闪温分析结果分别与试验和Blok理论结果吻合良好。研究结果表明，干运行条件下滞后生热温升对稳态啮合温度影响较小，摩擦生热温升是塑料齿轮稳态啮合温度的主要组成部分。
Abstract
The meshing temperature of plastic gear affects the mechanical behaviors such as fatigue， wear and noise， which should not be ignored in the mechanical response and performance prediction of plastic gear. In order to predict the meshing temperature of plastic gears， a finite element numerical model of plastic gear temperature field is established considering the temperature-modulus effect of POM material and the multi-heat sources effect of frictional heat and hysteresis heat flux. Based on POM thermo-viscoelastic contact analysis， frictional heat flow and hysteresis loss heat flow are obtained as heat sources. Through the iterative calculation of the interaction between the steady meshing temperature and elastic modulus of plastic gear， the steady meshing temperature and tooth surface flash temperature are obtained. The steady meshing temperature results are in good agreement with the test results， and the flash temperature is in good agreement with the Blok theory. It is found that the temperature rise of hysteresis loss heat has little effect on the steady meshing temperature under dry condition， while the temperature rise caused by friction is the main component of the steady running temperature of plastic gear.
关键词
塑料齿轮滞后生热稳态啮合温度闪温
Keywords
Plastic gearHysteresis loss heatSteady meshing temperatureFlash temperature
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