Abstract
KEYWORDS–Active suspension, Electromagnetic actuator, Equivalent mass, Structure non-linearity, Robust control
ABSTRACT–
Feature quick response, high efficiency and potential to harvest energy from vibration, electromagnetic actuators are utilized to realize the active suspension design. Basing on a rotary type electromagnetic actuated active suspension (EAAS), the inertia of the actuator and nonlinear characteristics of the specific suspension structure are investigated. The dynamic equations of EAAS is derived according to the investigation. And a robust H∞ control is proposed basing on this dynamic model. With the specific suspension structure built in ADAMS and control strategy implemented in Matlab Simulink, the performance of a control on a real suspension structure is evaluated via this collaborative simulation. Results prove the feasibility and superiority of the proposed robust H∞ control.