A semi-active control submarine propulsion shafting quasi-zero stiffness vibration isolation device comprises a negative stiffness mechanism capable of axially moving relative to a propulsion shaft, an automatic balance position adjusting mechanism for adjusting the position of the negative stiffness mechanism, a positive stiffness mechanism and a vibration semi-active control system. The negative stiffness mechanism comprises a movable steel frame, a radial damper, a radial spring, a thrust disc, a thrust bearing and a thrust flange, wherein the thrust disc, the thrust bearing and the thrust flange are arranged on the propelling shaft. The outer side of the negative stiffness mechanism is covered with a submarine framework, the submarine framework is fixedly connected with the submarine shell, a plurality of automatic balance position adjusting mechanisms are arranged between the submarine framework and the periphery of the negative stiffness mechanism at intervals in the circumferential direction, and positive stiffness mechanisms are arranged between the submarine framework and the two ends of the negative stiffness mechanism; the positive stiffness mechanism comprises a plurality of longitudinal springs and switch controllable dampers; the balance position automatic adjusting mechanism comprises a swing oil cylinder, a gear and a rack. The system has radial and axial vibration isolation effects while the inherent frequency of the system is reduced.
一种半主动控制的潜艇推进轴系准零刚度隔振装置,包括可相对于推进轴轴向移动的负刚度机构、调整负刚度机构位置的平衡位置自动调整机构、正刚度机构、以及振动半主动控制系统;负刚度机构包括移动钢架、径向阻尼器、径向弹簧、以及设置在推进轴上的推力盘、推力轴承和推力法兰;负刚度机构的外侧罩设有潜艇骨架,潜艇骨架与潜艇壳体固定连接,潜艇骨架与负刚度机构外周之间沿周向间隔设有多个平衡位置自动调整机构,潜艇骨架与负刚度机构两端之间设有正刚度机构;正刚度机构包括多个纵向弹簧和开关可控阻尼器;平衡位置自动调整机构包括摆动油缸、齿轮和齿条。本发明降低了系统的固有频率的同时具有径向和轴向的隔振效果。
Semi-active control submarine propulsion shafting quasi-zero stiffness vibration isolation device and method
一种半主动控制的潜艇推进轴系准零刚度隔振装置及方法
2022-11-08
Patent
Electronic Resource
Chinese
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