首页>
外国专利>
Structural magnetic vibration controller and method for actively controlling vibrations on stationary components of rotary machinery
Structural magnetic vibration controller and method for actively controlling vibrations on stationary components of rotary machinery
展开▼
机译：结构磁振动控制器和主动控制旋转机械固定部件振动的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A structural magnetic vibration controller and a method for actively controlling vibrations through the use of a magnetic coupling between a damper mass and a stationary component of rotary machinery wherein the stiffness and damping characteristics of the magnetic coupling are controlled as a function of the relative movements between a first electromagnet carried by the machinery and a second electromagnet carried by the damping mass. The magnetic fields of the magnetic coupling formed by counterpoised electromagnets are controlled by electronic current control circuitry to achieve dynamic tuning via stiffness and dampening characteristics of the magnetic coupling so as to suppress system resonances which occur during transient machinery operation as well as during steady state operation on the basis of a signal from position transducers that provides a displacement feedback that is utilized to vary the coupling stiffness, and a first derivative which is used to control the dampening characteristic of the coupling as a function of the rate at which the position sensed changes with respect to time.
展开▼
