首页> 外国专利> Bearing reaction influence line curvature-based continuous beam damage identification method

Bearing reaction influence line curvature-based continuous beam damage identification method

机译:轴承反应影响线曲率的连续梁损伤识别方法

摘要

Disclosed is a bearing reaction influence line curvature-based continuous beam damage identification method. The method comprises the following steps: applying a moving load to a continuous beam before and after a damage, to obtain actually measured bearing reaction influence lines of the continuous beam before and after the damage; calculating the curvatures of the bearing reaction influence lines of the continuous beam before and after the damage, and positioning the damage by means of a curvature difference of the bearing reaction influence lines; quantifying the degree of damage by means of a relative change in the curvatures of the bearing reaction influence lines of the continuous beam before and after the damage; and if the number of spans of the continuous beam is greater than two, quantifying the degree of damage by means of the sum of the absolute values of the curvatures of a plurality of bearing reaction influence lines before and after the damage. The present invention has a low requirement for the number of test points, reducing the usage number of monitoring sensors, is able to accurately position and quantify the damage of a continuous beam structure, and is applied to damage evaluation of the continuous beam structure.
机译:公开了一种轴承反应影响线曲率的连续梁损伤识别方法。该方法包括以下步骤:在损坏之前和之后将移动负载施加到连续光束,以获得损坏前后连续光束的实际测量的轴承反应影响;计算造成损坏前后连续光束的轴承反应影响的曲率,并通过轴承反应影响线的曲率差定位损伤;通过在损坏之前和之后的轴承反应曲率的相对变化的相对变化来量化损坏程度;如果连续光束的跨度的数量大于2,则通过损坏之前和之后的多个轴承反应的曲率的绝对值的总和量化损坏程度。本发明对测试点的数量具有低的要求,减少监测传感器的使用数量,能够精确地定位和量化连续光束结构的损坏,并应用于连续光束结构的损伤评估。

著录项

  • 公开/公告号GB202111170D0

    专利类型

  • 公开/公告日2021-09-15

    原文格式PDF

  • 申请/专利权人 XIANGTAN UNIVERSITY;

    申请/专利号GB202111170

  • 发明设计人

    申请日2020-08-07

  • 分类号

  • 国家 GB

  • 入库时间 2022-08-24 21:02:30

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