焦万铭,杨 珏,马 飞,张文明.变速器行星齿轮机构等强度优化设计[J].农业机械学报,2015,46(1):359-364.
Jiao Wanming,Yang Jue,Ma Fei,Zhang Wenming.Equal Strength Optimal Design of Planetary Gear Transmission[J].Transactions of the Chinese Society for Agricultural Machinery,2015,46(1):359-364.
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变速器行星齿轮机构等强度优化设计   [下载全文]
Equal Strength Optimal Design of Planetary Gear Transmission   [Download Pdf][in English]
投稿时间:2014-08-15  
DOI:10.6041/j.issn.1000-1298.2015.01.050
中文关键词:  车辆 行星齿轮变速器 等强度优化
基金项目:国家高技术研究发展计划(863计划)资助项目(2011AA060404)
作者单位
焦万铭 北京科技大学 
杨 珏 北京科技大学 
马 飞 北京科技大学 
张文明 北京科技大学 
中文摘要:车辆行星齿轮变速器一般采用经验设计方法得到齿轮参数,使用中部分齿轮会因强度低而导致早期损坏,部分齿轮强度过高而使变速器结构体积增大。由此,提出一种优化方法,以变速器各行星排齿轮强度均等和体积最小为综合优化目标,利用行星齿轮装配条件为约束,求解后得到变速器的齿轮参数,利用ROMAX软件对优化后的齿轮进行仿真分析,得到变速器各行星排最大疲劳应力及疲劳寿命。仿真和试验结果表明:与经验设计方法相比,强化了薄弱齿轮的强度,齿轮接触应力由1118MPa降至932MPa;齿轮的强度更加均衡,齿轮接触应力差值由368MPa降至193MPa;齿轮疲劳寿命差距缩小,由157702h降至91588h;同时变速箱体积减小8.38%,分析结果与优化目标相符。
Jiao Wanming  Yang Jue  Ma Fei  Zhang Wenming
University of Science and Technology Beijing,University of Science and Technology Beijing,University of Science and Technology Beijing and University of Science and Technology Beijing
Key Words:Vehicle Planetary gear transmission Equal strength optimization
Abstract:Generally, the gear parameters of planetary vehicle transmission are got by the empirical design method. Some gears are damaged early because of low strength, as well as big structure size because of high strength in use. In this paper, the equal strength and minimum volume of the gear box planetary gears were regarded as optimization objective, and the assemble conditions were thought of optimization constraint. The gear parameters were obtained after calculation. Then planetary gears were analyzed by using ROMAX and the maximum of fatigue stress and fatigue life was obtained. The simulation and experiment result shows that some weak strength gears are enhanced and the whole strength is increased. The maximum gear contact stress is reduced from 1118MPa to 932MPa. The stress of all gears is more balanced and the difference of contact stress is decreased from 368MPa to 193MPa.The difference of gears figure life is shrunk from 157702h to 91588h compared to the conventional design gear life. The overall volume is reduced by 8.38%. The result is consistent with the optimization target.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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