何忠波,郑佳伟,薛光明,荣 策,柏 果.阀用超磁致伸缩致动器弓张结构静、动态建模与优化[J].农业机械学报,2018,49(9):397-405.
HE Zhongbo,ZHENG Jiawei,XUE Guangming,RONG Ce,BAI Guo.Static and Dynamic Property Optimization Design on Bow-type Structure of Giant Magnetostrictive Actuator for Valve[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(9):397-405.
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阀用超磁致伸缩致动器弓张结构静、动态建模与优化   [下载全文]
Static and Dynamic Property Optimization Design on Bow-type Structure of Giant Magnetostrictive Actuator for Valve   [Download Pdf][in English]
投稿时间:2018-05-29  
DOI:10.6041/j.issn.1000-1298.2018.09.047
中文关键词:  超磁致伸缩材料  弓张结构  致动器  优化设计  伺服阀
基金项目:国家自然科学基金项目(51275525)
作者单位
何忠波 陆军工程大学 
郑佳伟 陆军工程大学 
薛光明 陆军工程大学 
荣 策 陆军工程大学 
柏 果 陆军工程大学 
中文摘要:
HE Zhongbo  ZHENG Jiawei  XUE Guangming  RONG Ce  BAI Guo
Army Engineering University,Army Engineering University,Army Engineering University,Army Engineering University and Army Engineering University
Key Words:giant magnetostrictive material  bow type structure  actuator  optimization design  servo valve
Abstract:A compact giant magnetostrictive actuator with bow type amplifier structure was designed to meet the driving needs of large flow electro hydraulic servo valve. Based on mechanics and vibration theory, the static and dynamic models of this structure were established. The influence of the dimensional parameters towards its static and dynamic performance was analyzed, and it was concluded that its static and dynamic properties were mutually restrictive. Combining with the application requirements of giant magnetostrictive actuator in electro hydraulic servo valve, the multi objective optimization design was conducted for the bow type structure, and then the static and dynamic models were validated by the finite element analysis. Finally, the giant magnetostrictive actuator with bow type displacement amplifier structure was prototyped to test its static and dynamic properties. The results showed that the amplification ratio of this structure was fluctuated from 8.13 to 8.72, the maximum output displacement was 107.9μm, and the natural frequency reached 168Hz. The results were basically in consistent with the theoretical models. Compared with the performance before optimization, the natural frequency was increased by 55.6% when the requirement of the static magnification was met. The actuator designed can basically meet the driving requirements of servo valve, which proved that the optimized design method was effective.

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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