变间隙磁流变胶泥缓冲器理论研究与试验验证

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摘要传统磁流变(magnetorheological ,MR)缓冲器通常采用等间隙阻尼流道，对于冲击环境下仅靠励磁控制方法实现柔顺耗能极具挑战。针对此问题，本文提出一种缸筒截面具有锥度特征的磁流变胶泥缓冲器，其阻尼间隙随活塞位移增大而逐渐减小，同时伴随磁感应强度增大，进而提升阻尼力，以期通过结构设计方法补偿冲击环境下缓冲力的衰减。通过建立双坐标系分析了动态磁场与位移、电流之间的关系；采用微分思想将变间隙阻尼通道分为若干微元，基于Herschel-Bulkley (HB) 本构模型得到微元阻尼通道的截面流速分布；考虑局部损耗，构建了HB-Minor Losses (HBM) 动力学模型，定量分析了各局部损耗因素的影响；进一步分析了位移变化对截面流速、局部损耗压降、总压降的影响。搭建了锤重为93.2kg的冲击试验平台，并开展了不同冲击速度和电流下缓冲器动力学性能测试。结果显示缓冲器具备良好的可控性，其动态范围高达2.0，最大缓冲力达55kN。将试验结果与理论模型进行比较，发现HBM模型能够准确预测变间隙磁流变胶泥缓冲器动力学性能。

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	刘驰1
	付本元1
	居本祥1
	段俞洲1
	王宏1
	张贤明2

关键词 ：磁流变胶泥缓冲器, 变间隙, 动态磁场, 局部损耗

Abstract：Traditional magnetorheological (MR) buffer usually adopts equal-gap damping channel, which is very challenging to achieve compliant energy dissipation only by excitation control method under impact environment. To solve this problem, a MR cement buffer with cone section is proposed in this paper. With the increase of piston displacement, the damping gap gradually decreases and the magnetic induction intensity increases. Then, the damping force is further improved to compensate the damping force attenuation under impact environment through structural design method. The relationship between dynamic magnetic field and the parameters of displacement and displacement is analyzed by establishing double coordinate system. The variable gap damping channel is divided into several microelements by differential method. Based on Herschel-Bulkley (HB) constitutive model, the cross-sectional velocity profile of the damping channel is obtained. Considering the influence of minor losses, HB-minor losses (HBM) dynamic model is constructed. Then, the influence of each minor losses is quantitatively analyzed. The influence of displacement on the section velocity, minor losses pressure drop and total pressure drop is further analyzed. An impact test platform with a 93.2 kg mass is built, and the dynamic performance of the buffer under different impact velocities and currents is tested. The results show that the buffer has good controllability. Its dynamic range is up to 2.0, and the maximum buffer force is 55 kN. Comparing the test results with the theoretical model, it is found that the HBM model can accurately predict the dynamic performance of the proposed variable gap MR buffer.

Key words： magnetorheological cement buffer variable gap dynamic magnetic field minor losses

收稿日期: 2022-12-08 出版日期: 2023-08-28

引用本文:

刘驰1，付本元1，居本祥1，段俞洲1，王宏1，张贤明2. 变间隙磁流变胶泥缓冲器理论研究与试验验证[J]. 振动与冲击, 2023, 42(16): 120-128.
LIU Chi1，FU Benyuan1，JU Benxiang1，DUAN Yuzhou1，WANG Hong1，ZHANG Xianming2. Theoretical study and experimental verification of variable gap magnetorheological cement buffers. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(16): 120-128.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2023/V42/I16/120

[1] 周伟浩,文永蓬,尚慧琳,等. 轨道车辆车体半主动式磁流变吸振器的减振特性研究[J]. 振动与冲击, 2018,37(16):124-134.
ZHOU Wei-hao, WEN Yong-peng, SHANG Hui-lin, et al. A study on vibration reduction characteristics of semi-active magnetorheological vibration absorbers for vehicle bodies [J]. Journal of Vibration and Shock, 2018, 37(16):124-134.
[2] Jin T, Liu Z, Sun S, et al. Theoretical and experimental investigation of a stiffness-controllable suspension for railway vehicles to avoid resonance [J]. International Journal of Mechanical Sciences, 2020: 105901.
[3] Yang J, Ning D, Sun S S, et al. A semi-active suspension using a magnetorheological damper with nonlinear negative-stiffness component [J]. Mechanical Systems and Signal Processing, 2021, 147:107071.
[4] 李嘉豪, 张永浩, 杜新新,等. 磁流变液阻尼器分阶段建模与流道参数敏感性分析[J]. 机械工程学报, 2022, 58(11):143-155.
LI Jia-hao, ZHANG Yong-hao, DU Xin-xin, et al. On phase modeling and channel parameters sensitivity analysis for magnetorheological fluid damper [J]. Journal of Mechanical Engineering, 2022, 58(11):143-155.
[5] 孙洪鑫, 王修勇, 陈政清,等. 磁流变式调谐液柱阻尼器对桥梁风致扭转振动的控制效果[J]. 中国公路学报, 2010, 23(1):58-65.
SUN Hong-xin, WANG Xiu-yong, CHEN Zheng-qing, et al. Wind-induced torsional vibration control effect of bridge with magnetorheological tuned liquid column damper [J]. China Journal of Highway and Transport, 2010, 23(1):58-65.
[6] D Woo, S B Choi, Y T Choi, et al. Frontal crash mitigation using MR impact damper for controllable bumper [J]. Journal of Intelligent Material Systems and Structures, 2007, 18 (12): 1211-1215.
[7] 张广, 汪辉兴, 王炅. 磁流变阻尼器对火炮后坐炮膛时期阻尼特性分析[J]. 振动与冲击, 2019, 38(20):172-180.
ZHANG Guang, WANG HUI-xing, Wang Jiong. Analysis of damping characteristics of magnetorheological damper for the artillery recoil during bore period [J]. Journal of Vibration and Shock, 2019, 38(20):172-180.
[8] 寿梦杰, 廖昌荣, 叶宇浩,等. 冲击载荷下磁流变缓冲器的动力学行为[J]. 机械工程学报, 2019, 55(1):72-80.
SHOU Meng-jie, LIAO Chang-rong, YE Yu-hao, et al. Dynamic behavior of magnetorheological energy absorber under impact loading [J]. Journal of Mechanical Engineering, 2019, 55(1):72-80.
[9] 白先旭, 杨森. 磁流变半主动落锤冲击缓冲系统的“软着陆”控制试验与分析[J]. 机械工程学报, 2021, 57(1):121-127.
BAI Xian-xu, YANG Sen. Experimental test and analysis of “soft-landing” control for drop-induced shock systems using magnetorheological energy absorber [J]. Journal of Mechanical Engineering, 2021, 57(1):121-127.
[10] 陈凯峰, 郑祥盘. 曳引电梯新型磁流变制动装置设计与性能实验[J]. 振动与冲击, 2020, 39(23):165-175.
CHEN Kai-feng, ZHENG Xiang-pan. Design and performance tests of a new MR braking device for traction elevator [J]. Journal of Vibration and Shock, 2020, 39(23):165-175.
[11] 杨祖龙, 苏有文. 基于磁流变阻尼器与弹性基础隔震耦合建筑的地震响应分析[J]. 地震工程学报, 2018, 40(5):932-940.
YANG Zu-long, Su You-wen. Seismic response of a coupled building with magnetorheological damper and elastic base isolation [J]. China Earthquake Engineering Journal, 2018, 40(5):932-940.
[12] 胡国良, 邓英俊, 冯海波,等. 内置磁流变阀对磁流变阻尼器动力性能的影响[J]. 交通运输工程学报, 2021, 21(03): 289-299.
HU Guo-liang, DENG Ying-jun, FENG Hai-bo, et al. Effect of inner magnetorheological valve on dynamic performance of magnetorheological damper [J]. Journal of Traffic and Transportation Engineering, 2021, 21(03): 289-299.
[13] Fu B, Liao C, Li Z, et al. Impact behavior of a high viscosity magnetorheological fluid-based energy absorber with a radial flow mode[J]. Smart Material Structures, 2017, 26(2):025025.
[14] Li Z, Liao C, Fu B, et al. Study of radial flow mode magnetorheological energy absorber with center drain hole [J]. Smart Materials and Structures, 2018, 27: 105008.
[15] 杜新新, 甘斌, 简晓春,等. 考虑壁面滑移的磁流变胶泥缓冲器设计理论与落锤冲击试验[J]. 振动与冲击, 2021, 40(8):201-208.
DU Xin-xin, GAN Bin, JIAN Xiao-chun, et al. Design methodology for magnetorheological energy absorbers considering wall slip and falling weight impact tests [J]. Journal of Vibration and Shock, 2021, 40(8):201-208.
[16] 董小闵, 丁飞耀, 管治等. 面向高速的磁流变缓冲器多目标优化设计及性能研究[J]. 机械工程学报, 2014, 50 (5): 127-134.
DONG Xiao-min, DING Fei-yao, GUAN Zhi, et al. Multi-objective optimization and performance research of magneto-rheological absorber under high speed [J]. Journal of Mechanical Engineering, 2014, 50 (5): 127-134.
[17] 吴欢, 李以农, 张志达,等. 带梯形截面导磁环的全通道有效车用磁流变减振器设计[J]. 兵工学报, 2022.
WU Huan, LI Yi-nong, ZHANG Zhi-da, et al. Design of a full-channel effective automotive magnetorheological damper with trapezoidal section magnetic guide ring [J]. Acta Armamentarii, 2022.
[18] Ichwan B, Mazlan S A , Imaduddin F, et al. Development of a modular MR valve using meandering flow path structure [J]. Smart Materials & Structures, 2016, 25(3):037001.
[19] 廖昌荣, 付本元, 李祝强,等. 变阻尼间隙磁流变缓冲器及其自适应控制方法[P]. 中国：CN105422722A, 2016-03-23.
LIAO Chang-rong, FU Ben-yuan, LI Zhu-qiang, et al. Variable gap magnetorheological buffer and adaptive control method [P]. China: CN105422722A, 2016-03-23.
[20] Xie L, Choi Y T, Liao C R , et al. Characterization of stratification for an opaque highly stable magnetorheological fluid using vertical axis inductance monitoring system [J]. Journal of Applied Physics, 2015, 117(17):1227-1232.
[21] Powers B E, Wereley N M, Choi Y T. Analysis of impact loads in a magnetorheological energy absorber using a Bingham plastic model with refined minor loss factors accounting for turbulent transition [J]. Meccanica, 2016, 51(12):3043-3054.