...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Mechanical systems and signal processing >A method for the localization of damage in a CFRP plate using damping
【24h】

A method for the localization of damage in a CFRP plate using damping

机译：利用阻尼在CFRP板中定位损伤的方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the past 25 years, the scientific and industrial communities have made great efforts on the fields of damage detection and structural health monitoring (SHM). However, no single approach has proven appropriate for all situations. Composite materials, which are receiving an increasing attention in the aeronautical industry, namely carbon fibre reinforced plastics (CFRP), are very sensitive to impacts of medium and low energy. Typically, barely visible impact damage (BVID) will occur, constituting an unsafe failure of difficult assessment. To assess (detect, locate and quantify) damage in this kind of material is still a challenge, especially if a huge amount of sensors or expensive equipments at hand are not used. In this work, a methodology that makes use of a reduced amount of conventional sensors is explored, with the aim of locating damage for a low cost on components that are subjected to impacts during service. This represents a considerable benefit, namely for the assessment of damage in aeronautical components, compared to most methods used today. This work can also give a major contribution to the research community since uncommon approaches will be used to model damage in composite materials, namely the modal damping factor as the main feature for damage localization.
机译：在过去的25年中，科学界和工业界在损坏检测和结构健康监测（SHM）领域做出了巨大的努力。但是，没有一种方法适合所有情况。在航空工业中越来越受到关注的复合材料，即碳纤维增强塑料（CFRP），对中低能量的冲击非常敏感。通常，将发生几乎看不见的冲击损坏（BVID），构成难以评估的不安全故障。评估（检测，定位和量化）这种材料的损坏仍然是一个挑战，尤其是如果不使用大量传感器或昂贵的设备的情况下。在这项工作中，探索了一种使用较少数量的常规传感器的方法，目的是以低成本找到在使用过程中会受到冲击的组件上的损坏。与当今使用的大多数方法相比，这代表了很大的好处，即用于评估航空部件的损坏。由于不常见的方法将用于模拟复合材料中的损伤，即模态阻尼因子作为损伤局部化的主要特征，因此这项工作也可以为研究界做出重大贡献。

著录项

  • 来源
    《Mechanical systems and signal processing》 |2009年第6期|1846-1854|共9页
  • 作者

    D. Montalvao; A.M.R. Ribeiro; J. Duarte-Silva;

  • 作者单位

    Department of Mechanical Engineering, Escola Superior de Tecnologia de Setubal, Instiruto Politecnico de Setubal, Campus do IPS, Estefanilha, 2910-761 Setubal, Portugal;

    Department of Mechanical Engineering, Instiruto Superior Tecnico, Universidade Tecnica de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;

    Department of Mechanical Engineering, Escola Superior de Tecnologia de Setubal, Instiruto Politecnico de Setubal, Campus do IPS, Estefanilha, 2910-761 Setubal, Portugal;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    structural health monitoring; damage; delamination; damping; composite; vibration;

    机译：结构健康监测;损伤;分层阻尼综合;振动;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号