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Novel active absorber based on PZT (piezoelectric ceramic)

An active shock absorber and shock absorber technology, applied in the field of vibration reduction, can solve the problems of inconspicuous damping effect, achieve high load-carrying capacity, improve support stiffness, and actively control the effect of damping characteristics

Inactive Publication Date: 2017-05-17
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PZT has a large support stiffness but the damping effect is not obvious

Method used

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  • Novel active absorber based on PZT (piezoelectric ceramic)
  • Novel active absorber based on PZT (piezoelectric ceramic)
  • Novel active absorber based on PZT (piezoelectric ceramic)

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. However, it can be understood that the following specific embodiments are only preferred technical solutions of the present invention, and should not be construed as limiting the present invention.

[0021] Such as figure 1 As shown, the new active shock absorber based on PZT includes outer bushing 2, elastic structure 4, pad 5, PZT 3 and metal rubber block 1. The outer shaft sleeve 2, the elastic structure 4, and the pad 5 are of an integrated structure. The PZT 3 is embedded in the groove between the two elastic structures 4 , and the metal rubber blocks 1 are installed in the grooves on both sides to support the tiles 5 in parallel.

[0022] Such as Figure 4 As shown, the bushing is processed by CNC milling and WEDM, and the thickness of the elastic structure determines the rebound stiffness of the elastic structure. The radian ...

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PUM

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Abstract

The invention discloses a novel absorber based on PZT (piezoelectric ceramic). The novel absorber comprises an outer shaft sleeve, elastic structures, tile blocks, PZT and a metal rubber block, wherein the outer shaft sleeve, the elastic structures and the tile blocks are of an integrated structure; the outer shaft sleeve and the tile blocks are in flexible connection through the middle elastic structures; the elastic structures and PZT are circumferentially distributed between the tile blocks and the outer shaft sleeve; grooves are designed in the middle parts of the elastic structures; PZT is placed in the grooves; the metal rubber block is mounted in the grooves in the two sides of PZT and the elastic structures; and the metal rubber block and PZT are in parallel connection and support the tile blocks. The novel absorber provided by the invention has the characteristics that bearing capacity is high, rigidity is high, damping is high, damping characteristics can be actively controlled, and the like.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to a novel active vibration damper based on PZT (piezoelectric ceramics). Background technique [0002] The new PZT-based active shock absorber is a shock absorber whose damping characteristics can be actively controlled. In this shock absorber, the shoe block and the outer bushing are integrated and connected together through an elastic structure. The PZT is embedded in the middle and the metal rubber blocks at both ends form a parallel structure as a support. Compared with ordinary rubber shock absorbers, it has the advantages of high load-bearing capacity, large damping, and controllable damping characteristics. Compared with the traditional rubber shock absorber, the PZT can be controlled to adjust the deformation space of the metal rubber block, showing different damping characteristics. According to the difference in the amplitude and angle of the tiles being exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/00
CPCF16F7/00
Inventor 冯凯吕鹏刘天宇
Owner HUNAN UNIV
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