Active anti-resonance vibration isolating device based on digital controller

A digital controller, anti-resonance technology, applied in the direction of mechanical oscillation control, control/regulation system, non-electric variable control, etc., can solve the problem that the vibration isolation device has no adjustment ability, does not have multiple anti-resonance zones, and cannot adjust anti-resonance. frequency points, etc.

Inactive Publication Date: 2008-11-05
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

The anti-resonance frequency point cannot be adjusted, and there are no multiple anti-resonance regio

Method used

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  • Active anti-resonance vibration isolating device based on digital controller
  • Active anti-resonance vibration isolating device based on digital controller
  • Active anti-resonance vibration isolating device based on digital controller

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0049] see first figure 2 , figure 2 It is a structural block diagram of the active anti-resonance vibration isolation device based on the digital controller of the present invention. As can be seen from the figure, the composition of the active anti-resonance vibration isolation device based on the digital controller of the present invention is: a piezoelectric acceleration sensor 2 is located on the vibration isolation platform 1, an actuator 4 is set between the vibration isolation platform 1 and the base, the output terminal of the piezoelectric acceleration sensor 2 is connected to the digital controller 3, and the output terminal of the digital controller 3 is connected to the actuating The input end of the actuator 4, the actuator 4 acts under the control of the d...

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Abstract

An active anti-resonance vibration insulating device based on a digital controller is characterized in that the configuration is that one set of piezoelectricity acceleration sensor is provided on a vibration insulating platform. An actuator is provided between the vibration insulation platform and a base. The output end of the piezoelectricity acceleration sensor is connected with the digital controller. The output end of the digital controller is connected with the input end of the actuator which actuates under the controlling of the digital controller to apply force to the vibration insulating platform for generating a vibration insulating movement. The frequency of the movement is same with the frequency of the vibration from the base to the vibration insulating platform. The amplitude of the movement is same with the amplitude of the vibration from the base to the vibration insulating platform. The direction of the movement is opposite with that of the vibration from the base to the vibration insulating platform. The invention can simultaneously realize the anti-resonance vibration insulations of a plurality of frequencies.

Description

technical field [0001] The invention relates to a dynamic anti-resonance vibration isolation device, in particular to an active anti-resonance vibration isolation device based on a digital controller. Background technique [0002] The traditional dynamic anti-resonance vibration isolation device belongs to the category of passive control. It is simple, reliable, and low in cost. It has a good vibration reduction effect on the narrow-band response of the system, but its vibration reduction effect on broadband vibration is poor. Such as figure 1 As shown, M is the mass of the vibration isolation platform, K is the stiffness of the elastic element, and C is the damping coefficient. m is the mass of the pendulum, b is the distance between the pendulum and the fulcrum, and a is the distance between the two fulcrums. The vibration transmissibility can be expressed as T = x u , Where u is the displacemen...

Claims

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Application Information

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IPC IPC(8): G05D19/02
Inventor 赵芳芳张涛朱健强
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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