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Novel active control vibration isolation platform

A technology of active control and vibration isolation platform, applied in the direction of non-electric variable control, mechanical oscillation control, control/adjustment system, etc., can solve the problems of unfavorable use, small application range, obvious temperature influence and delay of recovery, etc., and achieve simple structure , full-featured effect

Pending Publication Date: 2019-02-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

Common springs produced in combination with other smart materials include shape memory alloy springs such as SMA springs, which have relatively strong contraction force, but are significantly affected by temperature and have delayed recovery. Its use in precision control

Method used

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0042] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0043] Such as figure 1 As shown, the present invention discloses a novel active control vibration isolation platform, which includes an upper platform, a lower platform, and first to sixth struts, and the two ends of the first to sixth struts are respectively connected to the The upper platform and the lower platform are connected to form the Stewart platform architecture.

[0044] Such as figure 2 As shown, the first to sixth struts all include an upper strut, a vibration isolati...

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Abstract

The invention discloses a novel active control vibration isolation platform. Six supporting rods are changed on the design basis of a Stewart platform. The six supporting rods each comprise an upper supporting rod, a vibration isolation device and a lower supporting rod, wherein the vibration isolation device comprises a shell, an acceleration sensor, a control module, a power module, a light source module and a plurality of displacement adjusting units, the shell comprises an upper shell, a lower shell and a deformation portion, each displacement adjusting unit comprises a first connection rod, a second connection rod, a third connection rod and an adjustable spring, each adjustable spring comprises a spring body and an attaching layer on the surface of the spring body, the attaching layers are photoinduced shape memory polymer layers or flexure electric material layers, and the control module is electrically connected with the acceleration sensor and the power module. In the workingprocess, the control modules stimulate the attaching layers of the adjustable springs of the displacement adjusting units according to sensing data of the acceleration sensors for vibration isolation.

Description

technical field [0001] The invention relates to the field of vibration isolation, in particular to a novel active control vibration isolation platform. Background technique [0002] Stewart platform parallel mechanism has the characteristics of high rigidity, strong bearing capacity, and non-accumulation of position errors. It complements the series mechanism in application, and has become a research hotspot in space mechanics. At present, Stewart platform parallel mechanisms have been widely used in aviation, aerospace, subsea operations, underground mining, manufacturing and assembly and other industries. The outriggers of the traditional Stewart platform are driven by hydraulic cylinders, the device is relatively bulky, and the precision is not high, so there are certain limitations. At present, smart materials have been widely used in the field of vibration isolation and control. Common springs produced in combination with other smart materials include shape memory all...

Claims

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Application Information

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IPC IPC(8): F16F7/00G05D19/02
CPCG05D19/02F16F7/00F16F2230/18F16F2230/08
Inventor 孙洋张小旭邹鸿生
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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