{"title":"基于波浪板中三种波模的频率锁定创建绝对带隙","authors":"","doi":"10.1016/j.jsv.2024.118623","DOIUrl":null,"url":null,"abstract":"<div><p>This paper presents an absolute band gap (BG) by overlapping coupled band gaps based on frequency locking mechanism within a wavy structure. We first introduce coupled BG’s trigger conditions, including weak coupling, and then utilize two coupling in a wavy structure to lock three wave modes into two overlapped coupled BGs. A wavy specimen is determined for experimental validation, by selecting the geometric parameters based on their individual effects on the coupled BG. Four testing loads with the capability to excite all guided waves are applied numerically and experimentally to verify the performance of the absolute BG. The response signals validate the existence of a wide attenuation band introduced by the absolute BG. The results exhibit a great potential for utilizing the frequency locking mechanism to construct an absolute BG for applications such as vibration control.</p></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Creating absolute band gap based on frequency locking of three wave modes in a wavy plate\",\"authors\":\"\",\"doi\":\"10.1016/j.jsv.2024.118623\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This paper presents an absolute band gap (BG) by overlapping coupled band gaps based on frequency locking mechanism within a wavy structure. We first introduce coupled BG’s trigger conditions, including weak coupling, and then utilize two coupling in a wavy structure to lock three wave modes into two overlapped coupled BGs. A wavy specimen is determined for experimental validation, by selecting the geometric parameters based on their individual effects on the coupled BG. Four testing loads with the capability to excite all guided waves are applied numerically and experimentally to verify the performance of the absolute BG. The response signals validate the existence of a wide attenuation band introduced by the absolute BG. The results exhibit a great potential for utilizing the frequency locking mechanism to construct an absolute BG for applications such as vibration control.</p></div>\",\"PeriodicalId\":17233,\"journal\":{\"name\":\"Journal of Sound and Vibration\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-07-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sound and Vibration\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022460X24003857\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ACOUSTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sound and Vibration","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022460X24003857","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}
Creating absolute band gap based on frequency locking of three wave modes in a wavy plate
This paper presents an absolute band gap (BG) by overlapping coupled band gaps based on frequency locking mechanism within a wavy structure. We first introduce coupled BG’s trigger conditions, including weak coupling, and then utilize two coupling in a wavy structure to lock three wave modes into two overlapped coupled BGs. A wavy specimen is determined for experimental validation, by selecting the geometric parameters based on their individual effects on the coupled BG. Four testing loads with the capability to excite all guided waves are applied numerically and experimentally to verify the performance of the absolute BG. The response signals validate the existence of a wide attenuation band introduced by the absolute BG. The results exhibit a great potential for utilizing the frequency locking mechanism to construct an absolute BG for applications such as vibration control.
期刊介绍:
The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application.
JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.