石勇,宁一高,赵建辉,孙军.变齿距电磁作动器优化设计[J].农业机械学报,2016,47(6):394-400,407.
Shi Yong,Ning Yigao,Zhao Jianhui,Sun Jun.Optimal Design of Variable Tooth Electromagnetic Actuator[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(6):394-400,407.
摘要点击次数: 822
全文下载次数: 321
变齿距电磁作动器优化设计   [下载全文]
Optimal Design of Variable Tooth Electromagnetic Actuator   [Download Pdf][in English]
投稿时间:2016-02-20  
DOI:10.6041/j.issn.1000-1298.2016.06.052
中文关键词:  变齿距电磁作动器  线性度  解析模型  遗传算法  有限元模型
基金项目:国家自然科学基金项目(51475100)和黑龙江省留学自然基金项目(LC201422)
作者单位
石勇 哈尔滨工程大学 
宁一高 哈尔滨工程大学 
赵建辉 哈尔滨工程大学 
孙军 哈尔滨工程大学 
中文摘要:针对传统定齿距电磁作动器线性度差的问题,通过磁路分析建立了变齿距电磁作动器的解析模型。在此基础上,分析了气隙、定动子齿宽差、线圈匝数、动子半径等参数对作动器性能的影响,发现定动子齿宽差对作动器的线性度具有重大影响,从理论上揭示了采用变齿距结构实现良好线性度的必要性,并且良好线性度的实现需要牺牲一定的电磁力。为了尽可能提高变齿距电磁作动器的线性度,同时不至于使电磁力降低太多,采用遗传算法对其进行优化设计。结果表明,遗传算法参数设置的不同对优化结果的影响很小,相比于定齿距电磁作动器,变齿距电磁作动器可以实现线性度提高93.08%时,电磁力仅降低8.22%。最后,利用样机试验验证的有限元模型对优化后的方案进行仿真计算,计算结果证明优化后的作动器在0~3mm位移范围内具有良好的线性性能,同时验证了所建立解析模型的有效性。
Shi Yong  Ning Yigao  Zhao Jianhui  Sun Jun
Harbin Engineering University,Harbin Engineering University,Harbin Engineering University and Harbin Engineering University
Key Words:variable tooth electromagnetic actuator  linearity  analytical model  genetic algorithm  finite model
Abstract:As one of the most important performance indexes for electromagnetic actuator with tooth structure, linearity has major impact on the vibration controlling effect. However, traditional fixed tooth electromagnetic actuator has poor linearity. To solve this problem, the analytical model of variable tooth electromagnetic actuator was worked out by analyzing magnetic circuit. Influence rules of several parameters, such as air gap, the difference between tooth width of stator and active cell, coil turns and the radius of the active cell, on actuator performance were analyzed based on the analytical model, indicating that the difference between tooth width of stator and active cell had great influence on the linearity of variable tooth electomagnetic actuator. And the necessity of applying variable tooth to gain good linearity was revealed theoretically and the realization of good linearity needed to be at the expense of decreasing electromagnetic force. To improve the linearity of variable tooth electromagnetic actuator as much as possible and minimize the decrease of electromagnetic force at the same time, genetic algorithm was applied to the optimal design. The results showed different setting for genetic algorithm parameters had negligible effect on optimization results and that compared with the fixed tooth electromagnetic actuator, variable tooth electromagnetic actuator can improve linearity by 93.08% under the condition of electromagnetic force was only dropped by 8.22%. Finally, the simulating calculation for optimized scheme was carried out with the finite model which was verified by the experimental results of the processed prototype, and calculation result proved that the optimized actuator had good linearity in the displacement range of 0~3mm, meanwhile, it validated the analytical model.

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.

   下载PDF阅读器