Magnetic suspension active vibration isolator and vibration isolation method

Abstract

The invention discloses a magnetic suspension active vibration isolator and a vibration isolation method. Vibration isolation equipment is supported through a supporting piece, and the supporting piece is supported through a base; the supporting piece and the base are each provided with a magnetic device and a disturbance force collector, a magnetic suspension state can be formed between the supporting piece and the base through the magnetic devices, and disturbance force of the equipment and the ground is obtained through the disturbance force collectors of the supporting piece and the base;and the magnetic devices of the supporting piece and the base are connected to a control system, according to the obtained disturbance force signal condition, the disturbance force can be corrected while the magnetic suspension state is formed between the supporting piece and the base, and the purpose of vibration isolation is achieved. The magnetic suspension active vibration isolator can collectvibration disturbance force signals of the equipment and the ground and feed the vibration disturbance force signals back to the control system in time, the magnetic suspension active vibration isolator generates acting force opposite to the disturbance force, and therefore the vibration disturbance force of the ground and the equipment is offset, the equipment is stable, and accurate running andthe service life of the equipment are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of vibration isolators, and in particular relates to a magnetic suspension active vibration isolator and a vibration isolation method applied to high-end equipment and instruments. Background technique [0002] In recent years, the problem of vibration control has attracted more and more people's attention. According to different vibration control methods, vibration reduction technology can be divided into vibration isolation, vibration absorption, vibration elimination and vibration resistance. Vibration isolation is to take certain measures between the vibration source and the system, and install appropriate vibration isolation devices to reduce the vibration intensity transmitted to the vibration reduction target point. [0003] According to whether energy is needed, vibration isolation can be divided into passive vibration isolation and active vibration isolation. The former is also called passive vibrat...

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Problems solved by technology

However, it is still passive vibration isolation, not active vibration isolation. The vibration isolation of solid-borne sound ha...

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