Study On A Barrel Type Vibration Isolation Device Based Damping Second Order System Convergent Control Algorithm

Military magnetic storage devices are usually used in the environment where violent vibration and impact exist, such as vehicles, naval vessels, and space shuttles, etc. And the magnetic storage devices will be affected and even be damaged. The economic loss is huge and even can not be redeemed. So the hard disk reinforcement technology becomes the hot issues.Firstly, the actuality of domestic and international development of vibration is introduced. The electromagnetic active control as the outer reinforcement technology is used by analyzing and comparing. Secondly, the model of electromechanical dynamics is established from the perspective of energy conservation based on Lagrange-Maxwell equation. Thirdly, the whole structure of the system is designed in detail and the three-dimensional structure entities are drawn by Pro-E. The two-dimensional engineering drawings of parts are drawn. And then, the structural parameters of the system are calculating in detail on the bases of assumption, analyzing and comparing. At last, the feasibility of system scheme is studying; State-space equation of the system is establishing; Damping second-order system convergence control algorithm is putting forward. The control algorithm is validated by simulating in MATLAB software. The simulation results show that the control algorithm can meet the demand of this system on the condition of strong impact that has original displacement and velocity. So the correctness of this design theory is validated.The research results can be used to solve the problems of broadband vibration and strong impact and other places that need external reinforcement.