{"title":"通过无损诊断分析吊桥升降时产生噪音的原因 通过无损诊断分析吊桥升降时产生噪音的原因","authors":"K. J. Kim, J.-W. Lee","doi":"10.1002/mawe.202400045","DOIUrl":null,"url":null,"abstract":"<p>In the case of the Yeongdodaegyo bridge, abnormal noise occurred only in summer when it was opened, and the expected cause of noise was expected to be due to bearing damage or deformation friction. Therefore, a non-destructive test was performed around the spherical bearing, which is a major part of the drawbridge components connected to the rotating shaft girder. For the measurement to analyze the cause of noise, the real-time noise source was tracked during hoisting using an acoustic sensor according to the angular displacement of the rotating shaft. Through this, we tried to identify the noise source by identifying the left and right real-time deformation (torsion, deflection, inclination) and the friction part of the damaged bearing. As a result of the analysis, irregular noise was generated from the left and right sides, and noise was generated when the twist, deflection, or tilt of the rotation shaft occurred. The bottom of the left and right bearings was found to be the main source of noise, and the bearing contact during deformation is considered to be the cause of the noise.</p>","PeriodicalId":18366,"journal":{"name":"Materialwissenschaft und Werkstofftechnik","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202400045","citationCount":"0","resultStr":"{\"title\":\"Analysis of the cause of noise when the drawbridge goes up and down through non-destructive diagnosis\\n Analyse der Geräuschursache beim Heben und Senken einer Klappbrücke durch zerstörungsfreie Diagnose\",\"authors\":\"K. J. Kim, J.-W. Lee\",\"doi\":\"10.1002/mawe.202400045\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In the case of the Yeongdodaegyo bridge, abnormal noise occurred only in summer when it was opened, and the expected cause of noise was expected to be due to bearing damage or deformation friction. Therefore, a non-destructive test was performed around the spherical bearing, which is a major part of the drawbridge components connected to the rotating shaft girder. For the measurement to analyze the cause of noise, the real-time noise source was tracked during hoisting using an acoustic sensor according to the angular displacement of the rotating shaft. Through this, we tried to identify the noise source by identifying the left and right real-time deformation (torsion, deflection, inclination) and the friction part of the damaged bearing. As a result of the analysis, irregular noise was generated from the left and right sides, and noise was generated when the twist, deflection, or tilt of the rotation shaft occurred. The bottom of the left and right bearings was found to be the main source of noise, and the bearing contact during deformation is considered to be the cause of the noise.</p>\",\"PeriodicalId\":18366,\"journal\":{\"name\":\"Materialwissenschaft und Werkstofftechnik\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2024-05-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://onlinelibrary.wiley.com/doi/epdf/10.1002/mawe.202400045\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materialwissenschaft und Werkstofftechnik\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/mawe.202400045\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materialwissenschaft und Werkstofftechnik","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mawe.202400045","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Analysis of the cause of noise when the drawbridge goes up and down through non-destructive diagnosis
Analyse der Geräuschursache beim Heben und Senken einer Klappbrücke durch zerstörungsfreie Diagnose
In the case of the Yeongdodaegyo bridge, abnormal noise occurred only in summer when it was opened, and the expected cause of noise was expected to be due to bearing damage or deformation friction. Therefore, a non-destructive test was performed around the spherical bearing, which is a major part of the drawbridge components connected to the rotating shaft girder. For the measurement to analyze the cause of noise, the real-time noise source was tracked during hoisting using an acoustic sensor according to the angular displacement of the rotating shaft. Through this, we tried to identify the noise source by identifying the left and right real-time deformation (torsion, deflection, inclination) and the friction part of the damaged bearing. As a result of the analysis, irregular noise was generated from the left and right sides, and noise was generated when the twist, deflection, or tilt of the rotation shaft occurred. The bottom of the left and right bearings was found to be the main source of noise, and the bearing contact during deformation is considered to be the cause of the noise.
期刊介绍:
Materialwissenschaft und Werkstofftechnik provides fundamental and practical information for those concerned with materials development, manufacture, and testing.
Both technical and economic aspects are taken into consideration in order to facilitate choice of the material that best suits the purpose at hand. Review articles summarize new developments and offer fresh insight into the various aspects of the discipline.
Recent results regarding material selection, use and testing are described in original articles, which also deal with failure treatment and investigation. Abstracts of new publications from other journals as well as lectures presented at meetings and reports about forthcoming events round off the journal.