文献类型：期刊文献

英文题名：Internal damage localization for large-scale hollow cylinders based on helical sensor network

作者：Zhu, Yanping[1];Hu, Yue[2];Li, Fucai[1,5];Abbas, Saqlain[3];Bao, Wenjie[1];Su, Wensheng[4]

机构：[1]Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China;[3]Univ Engn & Technol UET, Dept Mech Engn, Lahore Narowal Campus, Narowal, Pakistan;[4]Special Equipment Safety Supervis Inspection Inst, Nanjing, Peoples R China;[5]Shanghai Jiao Tong Univ, State Key Lab Mech Syst & Vibrat, 800 Dongchuan RD, Shanghai 200240, Peoples R China

年份：2023

卷号：22

期号：4

起止页码：2469

外文期刊名：STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL

收录：;EI(收录号：20224012842348);WOS:【SCI-EXPANDED(收录号:WOS:001012484400016)】；

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of thisarticle: This work was supported by the National Natural Science Foundation of China under grant 52175104 and 52105113, Science and Technology Planning Project of & nbsp;Jiangsu Market Supervision and Administration Bureau under grant KJ196043.

语种：英文

外文关键词：Ultrasonic guided waves; internal damage localization; helical sensor network; flexural modes; hollow cylinder

摘要：The hollow cylinder with a large diameter is the typical shell structure in major engineering applications such as aviation, aerospace, ocean, and so on. Unlike the geometric properties of transportation pipe, the shell structure has a large size and short length. It is relatively difficult to detect damage globally. According to the abovementioned characteristics, a damage localization method based on helical sensor network is proposed in the current research work to locate the internal damage in large-scale hollow cylinder in which the sensors are arranged on the outer surface of the structure. The wavefront theory about flexural modes is fully explored to determine helical sensor network which is suitable for the full frequency spectrum and avoids the approximate estimation to the wave in plate. The flexible sensing paths and single mode excitation in helical sensor network also provide more possibilities for the damage localization in hollow cylinder. The verification method of circumferential orders based on the Fourier transform is developed by the normal mode expansion approach. To apply the helical sensor network of flexural mode in damage localization, the effective loading length of flexural modes is investigated using simulation. And the simulation and experiment both are conducted to locate the internal damage in hollow cylinders and verify the credibility of proposed localization method. The scale parameter and sensing path number are further investigated to determine the effect on location accuracy.