{"title":"功能分级碳纳米管增强复合板的声辐射和波传播","authors":"Feng-Lian Li, Yu-Qi Hao, Yu-Xin Hao","doi":"10.2140/jomms.2024.19.573","DOIUrl":null,"url":null,"abstract":"<p>With the wide application of functionally graded carbon nanotube reinforced composite (FG-CNTRC) structure in engineering, vibration and noise are inevitable in the complex working environment. This paper investigated the acoustic response and wave propagation characteristics of FG-CNTRC plates. Based on the third-order shear deformation theory, the dynamic equation of FG-CNTRC plate was derived using Hamilton’s principle. The acoustic response characteristics of FG-CNTRC plate under the concentrated harmonic excitation were solved and verified. By using the displacement function of wave propagation in an infinite plate, the dispersion characteristic equation of FG-CNTRC plate was obtained, and its dispersion curve, phase velocity and group velocity were solved. Then, the effects of parameter changes on the acoustic response and wave propagation in the FG-CNTRC plate were analyzed and discussed. This research provides a theoretical reference for the optimization design of FG-CNTRC structures. </p>","PeriodicalId":50134,"journal":{"name":"Journal of Mechanics of Materials and Structures","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sound radiation and wave propagation of functionally graded carbon nanotube reinforced composite plates\",\"authors\":\"Feng-Lian Li, Yu-Qi Hao, Yu-Xin Hao\",\"doi\":\"10.2140/jomms.2024.19.573\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>With the wide application of functionally graded carbon nanotube reinforced composite (FG-CNTRC) structure in engineering, vibration and noise are inevitable in the complex working environment. This paper investigated the acoustic response and wave propagation characteristics of FG-CNTRC plates. Based on the third-order shear deformation theory, the dynamic equation of FG-CNTRC plate was derived using Hamilton’s principle. The acoustic response characteristics of FG-CNTRC plate under the concentrated harmonic excitation were solved and verified. By using the displacement function of wave propagation in an infinite plate, the dispersion characteristic equation of FG-CNTRC plate was obtained, and its dispersion curve, phase velocity and group velocity were solved. Then, the effects of parameter changes on the acoustic response and wave propagation in the FG-CNTRC plate were analyzed and discussed. This research provides a theoretical reference for the optimization design of FG-CNTRC structures. </p>\",\"PeriodicalId\":50134,\"journal\":{\"name\":\"Journal of Mechanics of Materials and Structures\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2024-07-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Mechanics of Materials and Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.2140/jomms.2024.19.573\",\"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":"Journal of Mechanics of Materials and Structures","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.2140/jomms.2024.19.573","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}
Sound radiation and wave propagation of functionally graded carbon nanotube reinforced composite plates
With the wide application of functionally graded carbon nanotube reinforced composite (FG-CNTRC) structure in engineering, vibration and noise are inevitable in the complex working environment. This paper investigated the acoustic response and wave propagation characteristics of FG-CNTRC plates. Based on the third-order shear deformation theory, the dynamic equation of FG-CNTRC plate was derived using Hamilton’s principle. The acoustic response characteristics of FG-CNTRC plate under the concentrated harmonic excitation were solved and verified. By using the displacement function of wave propagation in an infinite plate, the dispersion characteristic equation of FG-CNTRC plate was obtained, and its dispersion curve, phase velocity and group velocity were solved. Then, the effects of parameter changes on the acoustic response and wave propagation in the FG-CNTRC plate were analyzed and discussed. This research provides a theoretical reference for the optimization design of FG-CNTRC structures.
期刊介绍：
Drawing from all areas of engineering, materials, and biology, the mechanics of solids, materials, and structures is experiencing considerable growth in directions not anticipated a few years ago, which involve the development of new technology requiring multidisciplinary simulation. The journal stimulates this growth by emphasizing fundamental advances that are relevant in dealing with problems of all length scales. Of growing interest are the multiscale problems with an interaction between small and large scale phenomena.
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