胡国良,刘丰硕,卢昀.功能集成型磁流变阻尼器设计与试验[J].农业机械学报,2016,47(11):384-390.
Hu Guoliang,Liu Fengshuo,Lu Yun.Design and Experiment of Multi-functional Magnetorheological Damper[J].Transactions of the Chinese Society for Agricultural Machinery,2016,47(11):384-390.
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功能集成型磁流变阻尼器设计与试验   [下载全文]
Design and Experiment of Multi-functional Magnetorheological Damper   [Download Pdf][in English]
投稿时间:2016-07-24  
DOI:10.6041/j.issn.1000-1298.2016.11.052
中文关键词:  磁流变阻尼器  振动能量采集  速度自感应  阻尼性能  功能集成
基金项目:国家自然科学基金项目(51475165、11462004)、江西省自然科学基金项目(20151BAB206035)、江西省教育厅科学技术研究项目(GJJ150525)和江苏省研究生创新资金项目(YC2016-S252)
作者单位
胡国良 华东交通大学
伍伦贡大学 
刘丰硕 华东交通大学 
卢昀 伍伦贡大学 
中文摘要:设计了一种集振动能量采集、速度自感应和阻尼力可控功能于一体的功能集成型磁流变阻尼器,该磁流变阻尼器的振动能量采集和速度自感应装置内置于阻尼器活塞杆空腔内,通过紧固销和紧固片将8个永磁铁和8个隔片按序固定安装在支撑杆上。在永磁铁作用下,缠绕在感应线圈绕线架上的感应线圈产生感应电压,实现振动机械能的能量采集;另外采集到的感应电压与活塞杆速度成正比例关系,可实现速度自感应。推导了振动能量采集和速度自感应数学模型,并采用ANSYS有限元仿真软件对振动能量采集进行了电磁场仿真分析。搭建试验台对所设计的功能集成型磁流变阻尼器进行了性能测试分析,试验结果表明:在0.06m/s的激励下,振动能量采集装置能产生1.0V的直流电压;感应电压与加载速度基本成正比例关系;另外,对该阻尼器的励磁线圈施加0.6A的直流电时,能产生750N左右的阻尼力,实现阻尼力可控。
Hu Guoliang  Liu Fengshuo  Lu Yun
East China Jiaotong University;University of Wollongong,East China Jiaotong University and University of Wollongong
Key Words:MR damper  vibration energy harvesting  velocity self sensing  damping performance  multiple function
Abstract:A multi functional magnetorheological (MR) damper with energy harvesting, velocity self sensing and controlled damping force was designed, fabricated and tested. The energy harvesting and velocity self sensing mechanism was composed of a permanent magnet array and induced coils which moved vertically. The proposed MR damper used the piston rod as the sharing component between the energy harvesting and velocity self sensing mechanism and the MR damper part, and this shared component could isolate the magnetic field between two function areas. The mathematical model for the energy harvesting and self sensing capability of the proposed MR damper was derived. Finite element model of the energy harvesting part was built up to address the power generating efficiency using ANSYS software. Experimental tests were carried out to address the performances of the proposed MR damper. The results showed that the damping force was ranged from 200N at the current of 0A to 750N at the current of 0.6A. The dynamic range equaled to about 3.75. The AC DC rectifier was applied on the power generating, and the results showed that 10V DC voltage output was harvested after the AC DC processing. Meanwhile, the velocity self sensing performance was experimentally evaluated under different excitation frequencies and amplitudes. The experimental results showed a well fit curve under different excitations. In other words, the efficiency and feasibility of the velocity self sensing capability of the MR damper were proved.

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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