一种新型柔性静电吸附变刚度结构

刘晨; 李卓远; 陈花玲

doi:10.7652/xjtuxb201812003

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一种新型柔性静电吸附变刚度结构

更新时间：2025-05-08

- 一种新型柔性静电吸附变刚度结构
- A Novel Flexible Electrostatic Adsorption Variable Stiffness Structure
- 西安交通大学学报 2018年52卷第12期页码：18-24
- 作者机构：
  
  西安交通大学机械结构强度与振动国家重点试验室,西安,710049
- 作者简介：
- 基金信息：
  
  : 2018-04-12。作者简介: 刘晨(1994-),男,硕士生;陈花玲(通信作者),女,教授,博士生导师。基金项目: 国家自然科学基金重大研究计划培育项目(91648110)
- DOI：10.7652/xjtuxb201812003
  中图分类号： TH17
- 网络首发：2018-12-10，
  
  纸质出版：2018
- 稿件说明：
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刘晨, 李卓远, 陈花玲. 一种新型柔性静电吸附变刚度结构[J]. 西安交通大学学报, 2018,52(12):18-24.

LIU Chen, LI Zhuoyuan, CHEN Hualing. A Novel Flexible Electrostatic Adsorption Variable Stiffness Structure[J]. 2018, 52(12): 18-24.
刘晨, 李卓远, 陈花玲. 一种新型柔性静电吸附变刚度结构[J]. 西安交通大学学报, 2018,52(12):18-24. DOI： 10.7652/xjtuxb201812003.

LIU Chen, LI Zhuoyuan, CHEN Hualing. A Novel Flexible Electrostatic Adsorption Variable Stiffness Structure[J]. 2018, 52(12): 18-24. DOI： 10.7652/xjtuxb201812003.

摘要

针对现有变刚度技术刚度控制结构复杂及刚度变化率低

且无法适应变形结构的难题

提出了一种新型柔性静电吸附变刚度结构

以实现柔性结构变刚度的目的。此结构由上、下两个静电吸附层及中间夹层组成

其中静电吸附层由基底、电极层、封膜3层结构组成。静电吸附层的电极材料采用碳膏-硅橡胶电极取代传统的金属电极

基底与封膜也由模量较小的硅橡胶材料制备

因此静电吸附层整体为柔性结构

可承受一定范围内的拉伸、压缩、弯曲、扭转等变形

适应不同形状结构的变刚度需求。通过试验研究了该静电吸附变刚度结构的刚度变化规律

并探究了各种因素对其变刚度的影响

研究结果表明:电压越高、封膜厚度越小

结构变刚度效果越明显; 同样电压下

双层静电吸附层比单层变刚度效果好; 中间夹层的厚度不会改变刚度变化效果。本设计仅需通过改变电压即可调节结构的刚度

操作方便

且刚度变化率最高可达180%

刚度调节范围较大

是一种应用前景广阔的变刚度结构。

Abstract

Aiming at the difficulty of the existing variable stiffness technology that the stiffness control structure is complex and the stiffness change rate is low

and it cannot adapt to the deformation structure

a new type of flexible electrostatic adsorption variable stiffness structure is proposed to achieve flexible stiffness of the flexible structure. This structure consists of two upper and lower electrostatic adsorption layers and an interlayer. The electrostatic adsorption layer is composed of a three-layer structure of a substrate

an electrode layer and a sealing film. Instead of the conventional metal electrode

the novel electrode in the electrostatic adsorption layer is made by mixing the carbon grease and silicone rubber. The substrate and the sealing film are also made of soft material. Therefore

the entire electrostatic adsorption layer is a flexible structure

which can stand stretching

compression

bending

torsion and other deformation within certain limits. Thus

the stiffness of different shape structures can be changed. This study reveals the stiffness change effect of the electrostatic adsorption variable stiffness structure via experiments

and explores various factors affecting variable stiffness effect. The results show that the higher the voltage or the smaller the thickness of the film

the more obvious the effect of the structural stiffness. Under the same voltage

the double-layer electrostatic adsorption layer has better effect than the single layer. The thickness of the interlayer does not affect the stiffness change. This approach only needs to adjust the stiffness of the structure by changing the voltage

so it is convenient to operate. The stiffness adjustment range gets very wide and the stiffness change rate is up to 180%.

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references

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