Inerter with self-adaptive adjustment of inerter coefficient

A technology of self-adaptive adjustment and inertial coefficient, which is applied in the direction of building types, buildings, building components, etc., can solve the problems of increased inertial coefficient of inerters, lack of inertial coefficients, passive self-adaptive inerters, difficulties in application, etc.

Active Publication Date: 2022-04-15
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The semi-active adjustment method requires a stable power supply and observation and feedback on the motion state of the structure. The cost is high, the requirements for working conditions and maintenance are high, and it is difficult to apply in the field of civil and structural engineering; the passive adjustment method using centrifugal force, in structural vibration When the frequency increases, the inertia coefficient of the inerter will increase, which is unfavorable for multi-mode vibration control
[0006]Structural multi-modal vibration control puts forward the requirement that the inertia coefficient of the inerter can be adjusted. Lack of inertial coefficient passive self-adaptive inerters suitable for multi-mode vibration control of structures

Method used

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  • Inerter with self-adaptive adjustment of inerter coefficient
  • Inerter with self-adaptive adjustment of inerter coefficient
  • Inerter with self-adaptive adjustment of inerter coefficient

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0035] A self-adaptive adjustment of the inertia coefficient of the inerter, such as Figure 1 to Figure 3 As shown, it includes a screw 1, a support block 4, an inner column 2, and an outer column 3;

[0036] The inner column 2 is sleeved on the outside of the support block 4, and balls are filled between the support block 4, the outer column 3 is sleeved on the outside of the inner column 2, and the side in at least one direction is supported on the support block 4 by balls superior;

[0037] The screw 1 passes through the inner cylinder 2 and the support seat 4, and meshes with t...

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Abstract

The invention relates to an inerter capable of adaptively adjusting an inerter coefficient. The inerter comprises a screw rod, a supporting block, an inner cylinder and one or more outer cylinders, the supporting block is sleeved with the inner cylinder, balls are filled between the inner cylinder and the supporting block, the inner cylinder is sleeved with the outer cylinder, and the side face in at least one direction is supported on the supporting block through the balls; the screw penetrates through the inner cylinder and the supporting seat and is meshed with the inner cylinder, and a friction plate is arranged between the inner cylinder and the outer cylinder. Compared with the prior art, the inner cylinder and the outer cylinder are supported by the friction plates, so that self-adaptive adjustment of the inerter coefficient is realized by utilizing static friction and sliding friction mechanisms.

Description

technical field [0001] The invention relates to the technical field of vibration control, in particular to an inerter for self-adaptive adjustment of the inertia coefficient. Background technique [0002] An inerter is a device that utilizes inertial force. The sign of the resistance produced by the inerter is opposite to the sign of the relative acceleration at both ends, and the magnitude of the resistance is proportional to the relative acceleration at both ends, and the proportional coefficient is the inertial coefficient. Utilizing the magnification effects of devices such as translation-rotation conversion and gears, the inertia coefficient of the inerter can reach hundreds or even thousands of times the mass of the moving components of the inerter. The direction of the inertial force is opposite to that of the restoring force, which has the effect of "negative stiffness", which can weaken the local stiffness of the structure where the inerter is installed. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
Inventor 陈林粟锐泉刘纪新孙利民
Owner TONGJI UNIV
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