Eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device

Abstract

The invention discloses an eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device, which comprises an upper platform, a lower platform and eight active vibration isolating mechanisms, wherein the upper platform and the lower platform are arranged horizontally, and are connected with each other through the eight active vibration isolating mechanisms; and each active vibration isolating mechanism comprises an upper platform flexible hinge, a dynamic force sensor, voice coil motor actuators and a lower platform flexible hinge. An eight-rod-redundant-configuration active vibration control platform with the structure has a six-degree-of-freedom moving capability and can be used for performing omnibearing vibration isolation and suppression. The eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device has the advantages that: eight voice coil motor actuators stretch, so that the upper platform can realize three-degree-of-freedom translation and three-degree-of-freedom rotation, a silent working environment is created for the upper platform, and the accuracies of optical equipment and laser equipment on the upper platform are greatly enhanced; and moreover, the eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device has a high response speed, high accuracy and high reliability.

Description

technical field [0001] The invention relates to the field of precision machinery, in particular to an eight-rod redundant configuration six-degree-of-freedom active vibration control device. Background technique [0002] With the wide application of technologies such as high-resolution observation and laser communication, the demand for high-performance, high-reliability and stable platforms is increasingly urgent. High-precision optical equipment and laser equipment require to work in a low-noise environment, and the disturbance generated by the base will affect the normal operation of these equipment. Because most of these disturbances are low-frequency disturbances below 100 Hz, it is difficult to effectively control them passively. Therefore, research and development of a platform for low-frequency vibration control has become an urgent problem to be solved. [0003] At present, most of the active vibration control platforms adopt the six-bar Stewart parallel mechanism ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention proposes a highly reliable six-degree-of-freedom vibration active control platform with redundant backup actuators to make up for the low reliability of the traditional six-bar platform

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