双伺服电机驱动下的磁流变阻尼器性能测试平台设计OA

To address issues such as the large volume and narrow testing range of the existing platform performance for magnetorheological damper(MRD),a testing platform driven by dual servo motors in co-ordination is proposed.The rotational motion of the motors is converted into high-precision linear recipro-cating motion,which is then applied to the MRD under test.This enables testing performance of the MRD within the ranges of 0-3 A for current,0-128 mm for amplitude,0-10 Hz for frequency and 0-100 mm/s for speed.The design not only ensures the accuracy of the platform's linear motion,but also reduces the struc-tural volume of traditional hydraulic solutions.Experimental results indicate that,when the other parame-ters are fixed,the MRD output damping force increases with the increase of the tested parameter,exhibi-ting a"loop-shaped"curve that eventually tends to saturation.The test process demonstrates good repeat-ability,with a relative error below 8.4%.The platform proves to be precise in control,stable and reliable,providing experimental support for MRD performance evaluation.