Improvement of Bingham Mechanical Model of MRD and Parameter Identification
Magnetorheological damper(MRD)not only has the advantages of fast damping response,good temperature stability and simplicity of structure,but also can adjust the control current to make the damping force value continuously change and real-ize the controllable damping force.Because the damping characteristics of MRD are related to the MR effect of internal MR fluid,the specific performance is very complex,and the existing mechanical models are not accurate enough to describe the damping characteristics of MRD accurately.Comparing the improved Bingham model with the experimental damping force value,the re-sults show that the improved Bingham model can well solve the problem that the damping force value curve of Bingham mechani-cal model is inconsistent with the experiment results in the nonlinear hysteretic phase.The overall output value curve of the im-proved model is basically the same as the experimental force value of the damper,and the model accuracy is greatly improved.This improved method provides a reference for the establishment of high-precision mechanical model of MRD.
NETL
NSTL
万方数据
维普
