Ao Zhang , Zhanxiang Gao , He Li , Ping Han , Zhenting Song , Wenda Yu
{"title":"自参数摆式吸收收割机的大振幅振动及非线性动力学特性","authors":"Ao Zhang , Zhanxiang Gao , He Li , Ping Han , Zhenting Song , Wenda Yu","doi":"10.1016/j.ijnonlinmec.2025.105201","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigates the nonlinear dynamics of a pendulum absorber-harvester system under large swing angle conditions, addressing the dual objectives of vibration absorption and energy harvesting. The dynamic model of the absorber-harvester system is established and the bifurcation characteristics and chaotic motion is analyzed by a numerical method. The results indicate that the system could exhibit three distinct motion patterns within the absorption bandwidth: stable periodic motion, quasi-periodic motion, and chaotic motion. Experiment validation is conducted to verify the different motion patterns and assess the system's vibration absorption efficiency and energy harvesting performance. Furthermore, the impact of key parameters on system's dynamic response is evaluated. The findings reveal that when chaotic motion occurs within the absorption bandwidth, the left stable region can reduce the vibration amplitude of the main system, while the right stable region could increase the vibration amplitude of the main system. Also, multiple chaotic motion regions would occur under certain parameters, which could be beneficial for energy harvesting but not conducive to vibration absorption. A stable full-circle rotation motion region of the pendulum exists between two chaotic regions, and this region is beneficial for both vibration absorption and energy harvesting. The nonlinear dynamic characteristics of the absorber-harvester system exhibit significant parameter dependence, enabling practical adjustments to meet specific application requirements.</div></div>","PeriodicalId":50303,"journal":{"name":"International Journal of Non-Linear Mechanics","volume":"178 ","pages":"Article 105201"},"PeriodicalIF":2.8000,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Large amplitude vibrations and nonlinear dynamics characteristics of an autoparametric pendulum absorber-harvester\",\"authors\":\"Ao Zhang , Zhanxiang Gao , He Li , Ping Han , Zhenting Song , Wenda Yu\",\"doi\":\"10.1016/j.ijnonlinmec.2025.105201\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study investigates the nonlinear dynamics of a pendulum absorber-harvester system under large swing angle conditions, addressing the dual objectives of vibration absorption and energy harvesting. The dynamic model of the absorber-harvester system is established and the bifurcation characteristics and chaotic motion is analyzed by a numerical method. The results indicate that the system could exhibit three distinct motion patterns within the absorption bandwidth: stable periodic motion, quasi-periodic motion, and chaotic motion. Experiment validation is conducted to verify the different motion patterns and assess the system's vibration absorption efficiency and energy harvesting performance. Furthermore, the impact of key parameters on system's dynamic response is evaluated. The findings reveal that when chaotic motion occurs within the absorption bandwidth, the left stable region can reduce the vibration amplitude of the main system, while the right stable region could increase the vibration amplitude of the main system. Also, multiple chaotic motion regions would occur under certain parameters, which could be beneficial for energy harvesting but not conducive to vibration absorption. A stable full-circle rotation motion region of the pendulum exists between two chaotic regions, and this region is beneficial for both vibration absorption and energy harvesting. The nonlinear dynamic characteristics of the absorber-harvester system exhibit significant parameter dependence, enabling practical adjustments to meet specific application requirements.</div></div>\",\"PeriodicalId\":50303,\"journal\":{\"name\":\"International Journal of Non-Linear Mechanics\",\"volume\":\"178 \",\"pages\":\"Article 105201\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2025-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Non-Linear Mechanics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0020746225001891\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Non-Linear Mechanics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0020746225001891","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MECHANICS","Score":null,"Total":0}
Large amplitude vibrations and nonlinear dynamics characteristics of an autoparametric pendulum absorber-harvester
This study investigates the nonlinear dynamics of a pendulum absorber-harvester system under large swing angle conditions, addressing the dual objectives of vibration absorption and energy harvesting. The dynamic model of the absorber-harvester system is established and the bifurcation characteristics and chaotic motion is analyzed by a numerical method. The results indicate that the system could exhibit three distinct motion patterns within the absorption bandwidth: stable periodic motion, quasi-periodic motion, and chaotic motion. Experiment validation is conducted to verify the different motion patterns and assess the system's vibration absorption efficiency and energy harvesting performance. Furthermore, the impact of key parameters on system's dynamic response is evaluated. The findings reveal that when chaotic motion occurs within the absorption bandwidth, the left stable region can reduce the vibration amplitude of the main system, while the right stable region could increase the vibration amplitude of the main system. Also, multiple chaotic motion regions would occur under certain parameters, which could be beneficial for energy harvesting but not conducive to vibration absorption. A stable full-circle rotation motion region of the pendulum exists between two chaotic regions, and this region is beneficial for both vibration absorption and energy harvesting. The nonlinear dynamic characteristics of the absorber-harvester system exhibit significant parameter dependence, enabling practical adjustments to meet specific application requirements.
期刊介绍:
The International Journal of Non-Linear Mechanics provides a specific medium for dissemination of high-quality research results in the various areas of theoretical, applied, and experimental mechanics of solids, fluids, structures, and systems where the phenomena are inherently non-linear.
The journal brings together original results in non-linear problems in elasticity, plasticity, dynamics, vibrations, wave-propagation, rheology, fluid-structure interaction systems, stability, biomechanics, micro- and nano-structures, materials, metamaterials, and in other diverse areas.
Papers may be analytical, computational or experimental in nature. Treatments of non-linear differential equations wherein solutions and properties of solutions are emphasized but physical aspects are not adequately relevant, will not be considered for possible publication. Both deterministic and stochastic approaches are fostered. Contributions pertaining to both established and emerging fields are encouraged.