An electromagnetically driven stewart active and passive integrated vibration isolation platform

Abstract

The invention provides an electromagnetically driven Stewart active and passive integrated vibration isolation platform, comprising a base platform connected in sequence, three lower connecting blocks, six legs, three upper connecting blocks and a load platform, characterized in that the The leg includes a force sensor and a voice coil actuator, wherein one end of the force sensor is connected to the lower connection block, and the other end is connected to the voice coil actuator to detect the magnitude of the force on the leg One end of the voice coil actuator is connected with the upper connection block, and the other end is connected with the force sensor, so as to generate different displacement and elongation according to the disturbance of the external vibration source, so as to actively control the vibration of the system. This patent mainly realizes the passive isolation of high frequency and active isolation of medium and low frequency. The attitude of the upper platform is controlled by the displacement generated by the voice coil actuator so as to achieve the purpose of active control and isolation of micro vibration. It has the characteristics of electromagnetic drive to realize ultra-low frequency control. .

Description

technical field [0001] The invention belongs to the field of micro-vibration active control and vibration reduction, in particular to an electromagnetically driven Stewart active and passive integrated vibration isolation platform. Background technique [0002] The current aerospace technology has had an important impact on society, economy, military and politics. With the increasing demand for social development, national security and economic construction, at the same time, the role of satellites is irreplaceable. Observation resolution requirements have also been continuously upgraded. Satellite attitude oscillations, and micro-vibration interference from satellite gyrations or reciprocating components on satellite platforms are gradually becoming bottlenecks restricting the use of highly sensitive payloads. [0003] Microvibration is caused by the normal operation of the equipped equipment during the orbital operation of the spacecraft. Such as the rotation of the momen...

AI Technical Summary

Problems solved by technology

[0006] The disadvantages of the existing technology are: this kind of application is relatively rare in domestic literature and patents, and the existing structure has the following disadvantages, the flexibility is not high, and the structure is relatively complicated

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