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以复合式磁流变阻尼器(Composite Magneto-Rheological Damper,CMRD)的阻尼力和可调系数为优化目标,采用MATLAB编程方法对CMRD进行了参数优化,并对参数影响面进行了分析。结果表明:优化后CMRD的阻尼力和可调系数均有所提高,但两个优化目标无法同时达到最大值;对阻尼力影响最大的参数依次为:活塞杆半径、挤压轴轴凸长度、阻尼间隙和活塞有效长度,对可调系数影响最大的参数依次为:挤压轴轴凸长度、活塞有效长度、挤压轴轴凸高度和阻尼间隙;增加活塞有效长度可同时提高阻尼器的阻尼力和可调系数;增加挤压轴轴凸长度会增大阻尼器的阻尼力,但可调系数会随之减小;钢套筒厚度对阻尼力和可调系数基本无影响。
Taking the damping force and adjustable coefficient of Composite Magneto-Rheological Damper (CMRD) as optimization objectives, the parameters of CMRD were optimized by using MATLAB programming method, and the influential surface of the parameters was analyzed. The results show that both the damping force and the adjustable coefficient of the optimized CMRD are improved, but the two optimization objectives can not reach the maximum at the same time. The most influential parameters of the damping force are as follows: the radius of the piston rod, the length of the extruded shaft, Damping gap and the effective length of the piston, the parameters that have the greatest influence on the adjustable coefficient are: the length of the extruded shaft, the effective length of the piston, the height of the extrusion shaft and the damping gap; increasing the effective length of the piston can increase the damping of the damper simultaneously Force and adjustable coefficient. Increasing the convex length of the extrusion shaft will increase the damping force of the damper, but the adjustable coefficient will decrease. The thickness of the steel sleeve has no influence on the damping force and the adjustable coefficient.