磁流变液制动特性测量实验装置研制

摘要

为研究磁流变液的制动特性设计了一种测量实验装置,该装置可通过控制外加磁场的大小来改变磁流变液的黏滞程度,从而控制制动过程.利用单片机采集制动过程中转速、制动时间以及线圈中励磁电流等参量,使用VB上位机对采集的数据进行处理并绘制出不同情况下的制动特性曲线.通过对各制动参量的理论分析与实验测量以探究磁流变液的制动特性.%In order to study the braking characteristics of magnetorheological fluid,a measuring device is designed,which can control the braking process by changing the viscosity of the magnetorheological fluid through controlling the magnitude of the external magnetic field.SCM is used to collect the parameters about the speed,the braking time and the exciting current in the coil,and the collected data is processed and the braking characteristic curve under different conditions is drawn by the VB host computer.Through the theoretical analysis and experimental measurement of the braking parameters,the braking characteristics of the magnetorheological fluid are explored.