基于最有价值球员算法的结构损伤识别方法

doi:10.3969/j.issn.1674-0696.2022.01.10

重庆交通大学学报（自然科学版） ›› 2022, Vol. 41 ›› Issue (01): 67-75.DOI: 10.3969/j.issn.1674-0696.2022.01.10

• 交通基础设施工程 • 上一篇

基于最有价值球员算法的结构损伤识别方法

缪炳荣，彭齐明，杨树旺，雒耀祥，裘杨喆

(西南交通大学牵引动力国家重点实验室，四川成都 610031)

收稿日期:2020-07-28 修回日期:2020-12-02 发布日期:2022-01-20
作者简介:缪炳荣（1970—），男，江苏泰州人，副教授，博士，主要从事车辆动力学与结构寿命预测方面的研究。E-mail：brmiao@163.com 通信作者：彭齐明（1995—），男，湖北潜江人，硕士研究生，主要从事车辆结构损伤识别方面的研究。E-mail：Pengqm118@163.com
基金资助:
国家自然科学基金项目（51775456）；牵引动力国家重点实验室自主项目（2019TPL_T03）

Structural Damage Identification Method Based on the Most Valuable Player Algorithm

MIAO Bingrong, PENG Qiming, YANG Shuwang, LUO Yaoxiang, QIU Yangzhe

(State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China)

Received:2020-07-28 Revised:2020-12-02 Published:2022-01-20

摘要/Abstract

摘要： 将损伤识别逆问题看作是一个优化问题，提出了最有价值球员优化算法，对结构损伤进行识别研究；利用均方根数据统计分析法将结构固有频率和振型定义为一个新目标函数，引入罚函数以减少误识别信息，由最有价值球员算法识别出结构损伤位置和损伤程度。考虑不确定性因素和噪声的影响，对一简支梁和桁架结构进行数值分析，对比不同目标函数下识别效果进行识别。研究结果表明：提出的新目标函数能提供更加准确可靠的损伤识别结果。

关键词: 桥梁工程；结构损伤；最有价值球员算法；不确定性因素；罚函数；稳定性

Abstract: Since the inverse problem of damage identification can be regarded as an optimization problem, the most valuable player optimization algorithm was proposed for the structural damage identification. A new objective function was defined for the natural frequency and mode shape of the structure by using the statistical analysis method of root mean square data, and the penalty function was introduced to reduce the misidentification information. Finally, the most valuable player algorithm was used to identify the location and degree of structural damage. A simply supported beam and a truss structure were numerically analyzed, and the identification effects under different objective functions were compared. The influence of uncertainty and noise was considered. The research results show that the proposed new objective function can provide more accurate and reliable damage identification results than other objective functions do.

Key words: bridge engineering; structural damage; most valuable player algorithm; uncertainty; penalty function; stability

中图分类号:

U279.3+23

缪炳荣，彭齐明，杨树旺，雒耀祥，裘杨喆. 基于最有价值球员算法的结构损伤识别方法[J]. 重庆交通大学学报（自然科学版）, 2022, 41(01): 67-75.

MIAO Bingrong, PENG Qiming, YANG Shuwang, LUO Yaoxiang, QIU Yangzhe. Structural Damage Identification Method Based on the Most Valuable Player Algorithm[J]. Journal of Chongqing Jiaotong University(Natural Science), 2022, 41(01): 67-75.

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基于最有价值球员算法的结构损伤识别方法

Structural Damage Identification Method Based on the Most Valuable Player Algorithm

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