南华大学学报（自然科学版）2016，Vol.30Issue(4)：38-43,6.
齿轮稳态温度场及热变形研究
Study on Steady￣state Temperature Field and Thermal Deformation of Gear
摘要
Abstract
The convective heat transfer coefficient of different tooth surfaces and the friction heat flux density were identified based on the theory of tribology, heat transfer and gear meshing theory.The parametric model of finite element thermal analysis of single tooth was established by using APDL.The ratio factor and correction factor of mixed medium charac￣teristic parameters were proposed. The steady￣state temperature field and the thermal de￣formation of the single tooth were obtained. Through the data processing, the deformation surface along the normal direction of the meshing line was obtained. Results showed that the steady￣state temperature field obviously had the temperature gradient.The highest tem￣perature surface was the meshing surface,and the highest temperature emerged in the mid￣dle part of the upper double teeth meshing area.Thermal deformation of gear obviously had deformation gradient,the addendumˊs was the maximum,and the dedendumˊs was the mini￣mum . The deformation along the normal direction of the meshing line had a convex distribu￣tion in the direction of tooth width,and the maximum value emerged in the middle of the addendum.The thermal deformation and the amount of the tooth profile modification were almost in the same order of the magnitude,therefore,it will have a great influence on the tooth profile modification. The research can provide the theoretical basis for the design of tooth profile modification considering the thermal deformation of gear.关键词
齿轮/有限元/稳态温度场/热变形Key words
gear/finite element/steady￣state temperature field/thermal deformation分类
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罗彪,叶江,李威,李必文..齿轮稳态温度场及热变形研究[J].南华大学学报（自然科学版）,2016,30(4):38-43,6.基金项目
国家自然科学基金资助项目(51275035)；湖南省科技厅基金资助项目(2013NK3092) （51275035）
