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Servo type vertical shock absorber and application structure and shock absorption method of servo type vertical shock absorber

A kind of application structure and servo-type technology, applied in the direction of shock absorber, inertia effect shock absorber, spring/shock absorber design characteristics, etc., can solve the problems of lack of active control and low vibration damping effect, and achieve significant reduction vibration effect, controllable effect

Pending Publication Date: 2020-08-21
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These shock absorbers or dampers are basically passive damping and vibration reduction, the vibration reduction effect is not very high, and they lack active control

Method used

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  • Servo type vertical shock absorber and application structure and shock absorption method of servo type vertical shock absorber
  • Servo type vertical shock absorber and application structure and shock absorption method of servo type vertical shock absorber
  • Servo type vertical shock absorber and application structure and shock absorption method of servo type vertical shock absorber

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Experimental program
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Embodiment 1

[0065] See attached figure 1 , the embodiment of the present invention discloses a servo-type vertical shock absorber, including: a motor base plate 1, a servo motor 2, an acceleration sensor 3, a servo system 4, a traction mechanism 5 and a mass block 6;

[0066] The top surface of the motor bottom plate seat 1 is fixedly connected with the vibrating surface 7;

[0067] The servo motor 2 is fixed on the bottom surface of the motor base 1;

[0068] The sensing end of the acceleration sensor 3 is fixed on the vibration surface 7, and is used to collect the vertical vibration acceleration value of the vibration surface 7;

[0069] The servo system 4 is electrically connected to the servo motor 2 and the acceleration sensor 3 respectively;

[0070] The input end of the traction mechanism 5 is connected to the power output shaft of the servo motor 4, and can output the rotational motion of the servo motor 2 as repeated linear motion in the vertical direction;

[0071] The mass ...

Embodiment 2

[0076] Participate in figure 2 , the embodiment of the present invention discloses an application structure of a servo-type vertical shock absorber. The servo-type vertical shock absorber provided in Embodiment 1 is installed on the box-shaped bridge 9 of a suspension bridge or a cable-stayed bridge, and the motor base The top surface of the plate 1 is fixedly connected with the inner top surface of the box-shaped bridge 9 , that is, the servo-type vertical shock absorber is installed inside the box-shaped bridge 9 .

Embodiment 3

[0078] See attached image 3 , the embodiment of the present invention discloses an application structure of a servo-type vertical shock absorber. The servo-type vertical shock absorber provided in Embodiment 1 is installed on a box-shaped bridge 9 of a suspension bridge or a cable-stayed bridge. The box-shaped The outer top surface of the bridge 9 is fixed with a steel frame 10, and the top surface of the motor base plate 1 is fixedly connected with the inner top surface of the steel frame 10, that is, the servo vertical shock absorber is installed outside the box bridge 9.

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Abstract

The invention discloses a servo type vertical shock absorber and an application structure and a shock absorption method of the servo type vertical shock absorber. The shock absorber comprises a motorbase plate, a servo motor, an acceleration sensor, a servo system, a traction mechanism and a mass block. In the application structure, at least one servo type vertical shock absorber is installed inside or outside a box type bridge; when the vibration surface vibrates in the vertical direction, the acceleration sensor collects the vertical vibration acceleration value of the vibration surface andtransmits the vertical vibration acceleration value to the servo system, and the servo system drives the servo motor to rotate according to the collected information so as to control the mass block to move up and down relative to the vibration surface; when the vibration surface accelerates upwards, the mass block moves downwards; and when the vibration surface accelerates downwards, the mass block moves upwards. According to the shock absorber, different capacity dissipation in one vibration period is achieved through the up-and-down motion amplitude of the mass block, vibration can be rapidly reduced, and the controllability of energy dissipation in each vibration period is high.

Description

technical field [0001] The present invention relates to the technical field of shock absorbers, more specifically to a servo vertical shock absorber combined with a servo motor and a mass block, and its application to long-span bridge box-type suspension bridges, cable-stayed bridges, etc. The inside and outside of the section control the vortex induced vibration and flutter of the bridge. Background technique [0002] my country is a big country of bridges. Hundreds of world-leading long-span bridges have been built in the past 20 years, such as suspension bridges and cable-stayed bridges, all of which are flexible structures that are prone to vibration under wind loads. When the wind blows over the bridge, due to the different side forms of the bridge, it is easy to generate vortex vibration and even flutter at different wind speeds. When the damping of the bridge structure is small, it will produce a larger amplitude. Directional vibration, even with a certain amount of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/10E01D12/00
CPCE01D12/00F16F7/1005F16F2230/18
Inventor 尚仁杰
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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