{"title":"基底几何非线性对d形截面钝体混合驰骋能量采集器性能的影响。","authors":"Lin Sun, Zhaomin Song, Xiaopei Liu","doi":"10.1038/s41598-025-08444-x","DOIUrl":null,"url":null,"abstract":"<p><p>The research focuses on the influence of substrate geometric nonlinearity on the average output power of a hybrid galloping energy harvester with a vertically aligned D-shape-sectioned bluff body. Hamilton's principle is applied to derive the geometrically-nonlinear-substrate-based model of the energy harvester. Then, a thorough comparison study is presented, between the established geometrically-nonlinear-substrate-based model for concurrent galloping and base excitation, and a geometrically-linear-substrate-based one in numerical simulation. The significant differences between the two models, not only discovered in energy harvesting but also in dynamic behaviors including single periodic vibrations, multi-periodic vibrations and even chaotic vibrations, are analyzed and inter-related. The present research will contribute to the application of substrate geometric nonlinearity in enhancing broadband concurrent energy harvesting for the investigated hybrid energy harvester.</p>","PeriodicalId":21811,"journal":{"name":"Scientific Reports","volume":"15 1","pages":"23838"},"PeriodicalIF":3.9000,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12229538/pdf/","citationCount":"0","resultStr":"{\"title\":\"Influence of substrate geometric nonlinearity on the performance of a hybrid galloping energy harvester with D-shape-sectioned bluff body.\",\"authors\":\"Lin Sun, Zhaomin Song, Xiaopei Liu\",\"doi\":\"10.1038/s41598-025-08444-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The research focuses on the influence of substrate geometric nonlinearity on the average output power of a hybrid galloping energy harvester with a vertically aligned D-shape-sectioned bluff body. Hamilton's principle is applied to derive the geometrically-nonlinear-substrate-based model of the energy harvester. Then, a thorough comparison study is presented, between the established geometrically-nonlinear-substrate-based model for concurrent galloping and base excitation, and a geometrically-linear-substrate-based one in numerical simulation. The significant differences between the two models, not only discovered in energy harvesting but also in dynamic behaviors including single periodic vibrations, multi-periodic vibrations and even chaotic vibrations, are analyzed and inter-related. The present research will contribute to the application of substrate geometric nonlinearity in enhancing broadband concurrent energy harvesting for the investigated hybrid energy harvester.</p>\",\"PeriodicalId\":21811,\"journal\":{\"name\":\"Scientific Reports\",\"volume\":\"15 1\",\"pages\":\"23838\"},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2025-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12229538/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Scientific Reports\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.1038/s41598-025-08444-x\",\"RegionNum\":2,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Scientific Reports","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.1038/s41598-025-08444-x","RegionNum":2,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Influence of substrate geometric nonlinearity on the performance of a hybrid galloping energy harvester with D-shape-sectioned bluff body.
The research focuses on the influence of substrate geometric nonlinearity on the average output power of a hybrid galloping energy harvester with a vertically aligned D-shape-sectioned bluff body. Hamilton's principle is applied to derive the geometrically-nonlinear-substrate-based model of the energy harvester. Then, a thorough comparison study is presented, between the established geometrically-nonlinear-substrate-based model for concurrent galloping and base excitation, and a geometrically-linear-substrate-based one in numerical simulation. The significant differences between the two models, not only discovered in energy harvesting but also in dynamic behaviors including single periodic vibrations, multi-periodic vibrations and even chaotic vibrations, are analyzed and inter-related. The present research will contribute to the application of substrate geometric nonlinearity in enhancing broadband concurrent energy harvesting for the investigated hybrid energy harvester.
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