摘要
On the application of an electric field, the mechanical properties ofER(Electro-rheological) fluid are very complex. The damping force of ER fluid is linear withoutelectric field and is nonlinear when an electric field is applied. By increasing the strength of theelectric field, the behavior of ER fluid changes from linear viscous to nonlinearviscoelastic-plastic. External electric fluid changes natural behavior of system with ER fluidbesides the mechanical properties of ER fluid. The affect of ER fluid on the stiffness of nonlinearvibration system with ER dampers is analyzed by iterative perturbation method. The results show thatthe stiffness of structure would be increased with growing of the strength of the electric field.
On the application of an electric field, the mechanical properties ofER(Electro-rheological) fluid are very complex. The damping force of ER fluid is linear withoutelectric field and is nonlinear when an electric field is applied. By increasing the strength of theelectric field, the behavior of ER fluid changes from linear viscous to nonlinearviscoelastic-plastic. External electric fluid changes natural behavior of system with ER fluidbesides the mechanical properties of ER fluid. The affect of ER fluid on the stiffness of nonlinearvibration system with ER dampers is analyzed by iterative perturbation method. The results show thatthe stiffness of structure would be increased with growing of the strength of the electric field.
