基础振动对编织式液压胶管钢丝层应力分布影响研究

doi:10.3901/JME.2018.01.066

机械工程学报 ›› 2018, Vol. 54 ›› Issue (1): 66-73.doi: 10.3901/JME.2018.01.066

• 特邀专栏:硬岩掘进装备(TBM)的关键基础问题 • 上一篇下一篇

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基础振动对编织式液压胶管钢丝层应力分布影响研究

陈朵云^1,2, 杨忠炯^1,2,3, 周立强^1,2, 包捷^1,2, 李俊^1,2

1. 中南大学机电工程学院长沙 410083;
2. 中南大学机械工程实验教学中心长沙 410083;
3. 中南大学高性能复杂制造国家重点实验室长沙 410083

收稿日期:2017-03-02 修回日期:2017-04-21 出版日期:2018-01-05 发布日期:2018-01-05
通讯作者: 陈朵云(通信作者),女,1992年出生。主要研究方向为流体传动与控制。E-mail:274871508@qq.com
作者简介:杨忠炯,男,1964年出生,博士,教授,博士研究生导师。主要研究方向为工程机械与车辆工程。E-mail:yzj7072@126.com
基金资助:
国家重点基础研究发展计划资助项目（973计划，2013CB035404）。

Stress Distribution of Steel Wire Braid Hydraulic Hose with Vibration of Foundation

CHEN Duoyun^1,2, YANG Zhongjiong^1,2,3, ZHOU Liqiang^1,2, BAO Jie^1,2, LI Jun^1,2

1. College of Mechanical and Electrical Engineering, Central South University, Central South University, Changsha 410083;
2. Experimental Teaching Center of Mechanical and Engineering, Central South University, Changsha 410083;
3. State Key Laboratory of High Performance and Complex Manufacturing, Central South University, Changsha 410083

Received:2017-03-02 Revised:2017-04-21 Online:2018-01-05 Published:2018-01-05

摘要/Abstract

摘要： 液压胶管在硬岩掘进机液压系统中大量使用，作为易损件容易影响系统的安全可靠性，为了得到胶管的应力分布，基于复合材料经典层合板理论进行编织式液压胶管的理论分析，建立了基础振动下编织式胶管的数学模型；仿真与试验研究得到了液压及振动参数对胶管应力分布的影响，研究结果显示：当基础振动频率在胶管共振频率附近时，应力最大，振动最明显；当基础振动振幅越大，胶管振动越明显，且应力随着振幅增加而减小；当振动加速度达到一定值时将导致胶管钢丝层最大主应力发生突变；液压对胶管钢丝层所受应力的影响较小。

关键词: 编织式液压胶管, 层合板理论, 共振频率, 应力分布

Abstract: The hydraulic hoses are largely used in the tunnel boring machine (TBM) hydraulic system, which are easily damaged parts in practice, resulting in the decrease of the security and reliability of the system. To achieve the distribution rule of stress on the hoses, the mathematical models for braiding hydraulic rubber hose in TBM that utilize classical laminate plate theory is described. The effects of oil pressure and vibration parameters on the life of hoses are analysed with simulation and experiment, and the results are as follows:firstly, the stress reaches its peak, and the vibration becomes obvious as well when the excitation frequency is close to the natural frequency of hose; secondly, the vibration of the hose grows stronger, while the stress decreases as the amplitude of the fundamental vibration goes up; thirdly, the maximum principal stress mutation of steel wire of hose will happen when the vibration acceleration reaches a certain value; fourthly, the oil pressure has less effect on the stress of steel layer of the hose.

Key words: braiding hydraulic hose, frequency resonance, laminate plate theory, stress distribution

中图分类号:

TH137

陈朵云, 杨忠炯, 周立强, 包捷, 李俊. 基础振动对编织式液压胶管钢丝层应力分布影响研究[J]. 机械工程学报, 2018, 54(1): 66-73.

CHEN Duoyun, YANG Zhongjiong, ZHOU Liqiang, BAO Jie, LI Jun. Stress Distribution of Steel Wire Braid Hydraulic Hose with Vibration of Foundation[J]. Journal of Mechanical Engineering, 2018, 54(1): 66-73.

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基础振动对编织式液压胶管钢丝层应力分布影响研究

Stress Distribution of Steel Wire Braid Hydraulic Hose with Vibration of Foundation

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