Active load reduction experiment of rotor system undersudden unbalance

In order to finish the safety design of rotor system under sudden unbalance, the principle of load reduction by cone wall fused under sudden load was analyzed, the active load reduction experimental system with changing stiffness support was designed and experimental verification was finished. Research shows that the essence of cone wall fuse capable of reducing load is to reduce the stiffness of rotor support, accordingly, reduce the critical speed, the supporting load and amplitude in the deceleration process. The active load reduction structure change the support stiffness adaptively using changing stiffness, and can simulate the load reduction of cone wall fuse completely. Furthermore, it can verify the principle of load reduction by low-cost and highly repetitive experiment, and provide experimental conditions and data support for safety design of sudden unbalance.