一种新型引磁式磁流变阻尼器研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (10) : 248-259.

论文

一种新型引磁式磁流变阻尼器研究

王成龙1，吴鲁杰1，魏学谦2，曾庆良1

作者信息 +

New magneto-inducible magnetorheological damper

WANG Chenglong1,WU Lujie1,WEI Xueqian2,ZENG Qingliang1

Author information +

文章历史 +

摘要

针对特定结构限制下磁流变阻尼器工作性能的优化问题，在传统磁流变阻尼器的基础上设计了一种新型引磁式磁流变阻尼器，建立了磁场与流场耦合动力学模型；以输出阻尼力和动态可调系数为优目标函数，基于多目标遗传算法对该型磁流变阻尼器内部活塞进行了优化；建立了多物理场耦合模型并进行了仿真和冲击试验。仿真结果表明：在相同外形尺寸条件下，新型磁流变阻尼器的有效阻尼通道长度为64 mm，相比普通磁流变阻尼器提高了60%；新型磁流变阻尼器的力学特性与动态可调性更加优越，当施加2.0 A电流、活塞运动速度为0.09 m/s时，新型磁流变阻尼器的输出阻尼力为55.9 kN,相比普通磁流变阻尼器(32.4 kN)提高了72.5%；施加不同大小电流时新型磁流变阻尼器的峰值压力与吸能容量均明显高于普通磁流变阻尼器。冲击试验结果表明：当施加2.0 A的电流、冲击速度为2.45 m/s时，相比普通磁流变阻尼器，其峰值压力达到11.64 MPa、峰值压力提高约41%。峰值压力试验结果与仿真结果对比表明：仿真结果和试验结果的趋势是一致的，其相对误差在0.1之内,表明了仿真模型的有效性。

Abstract

A new magneto-inducible MR damper was proposed on the basis of the conventional MR damper to solve the problem that the performance of the traditional magnetorheological damper was limited under certain size of structure, and the coupling dynamics model of the magnetic field and the flow field was established. Taking the damping force and the dynamic adjustable coefficient as the optimization objective functions, the structure size of internal piston of the new MR damper was optimized based on the MOGA. On this basis, the multi-physical coupling model was established, and the simulation and impact tests were carried out. The simulation results showed that the length of effective damping channel of the new MR damper is 64 mm, which was 60% higher than that of the ordinary MR damper. The mechanical properties and dynamic adaptability of the new MR damper were superior. When 2.0 A current was applied and the piston speed was 0.09 m/s, the damping force of the new MR damper was 55.9 kN, which was 72.5% higher than that of the ordinary MR damper (32.4 kN). The peak pressure and energy absorption capacity of the new MR damper were obviously higher than those of the ordinary one when different amounts of current were applied. The impact test results showed that the peak pressure reached 11.64 MPa when 2.0 A current was applied and the impact velocity was 2.45 m /s, which was about 41% higher than that of the ordinary MR damper. The comparison between the peak pressure test results and the simulation results showed that the trend of the simulation results and the test results was consistent, and the relative error was within 0.1，which indicated the effectiveness of the simulation model.

导出引用

王成龙1，吴鲁杰1，魏学谦2，曾庆良1. 一种新型引磁式磁流变阻尼器研究[J]. 振动与冲击, 2024, 43(10): 248-259

WANG Chenglong1,WU Lujie1,WEI Xueqian2,ZENG Qingliang1. New magneto-inducible magnetorheological damper[J]. Journal of Vibration and Shock, 2024, 43(10): 248-259

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