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

An active control, degree of freedom technology, applied in non-rotational vibration suppression, electromechanical devices, sensors, etc., can solve problems such as low reliability, achieve good reliability, high precision, and improve reliability

Inactive Publication Date: 2011-08-17
BEIHANG UNIV
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  • Abstract
  • Description
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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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  • Eight-rod-redundant-configuration and six-degree-of-freedom active vibration control device

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] The present invention is an eight-bar redundant configuration vibration active control device. The invention adopts eight-bar parallel redundant configuration vibration mechanism configuration, which has high reliability and vibration isolation performance, and includes an upper platform 1 and a lower platform 2. and eight active vibration isolation mechanisms3, such as figure 1 As shown, the upper platform 1 and the lower platform 2 are arranged horizontally, and the upper platform 1 and the lower platform 2 are connected by eight active vibration isolation mechanisms 3 .

[0034] In this embodiment, the upper platform 1 and the lower platform 2 with the same shape are adopted, and both the upper platform 1 and the lower platform 2 are octagonal structures with four long sides and four short sides. Among them, the upper platform 1 and the lower platform 2 have...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/02F16F15/03H04R31/00H02K33/02
Inventor 崔龙黄海王海强张泽
Owner BEIHANG UNIV
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