Thermoelastic Damping Analysis to Nano-resonators Utilizing the Modified Couple Stress Theory and the Memory-Dependent Heat Conduction Model

doi:10.1007/s42417-021-00401-y

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	Thermoelastic Damping Analysis to Nano-resonators Utilizing the Modified Couple Stress Theory and the Memory-Dependent Heat Conduction Model
	Zhao, Guobin 1; Shi, Shuanhu 2; Gu, Bingdong 1; He, Tianhu1
	2022-02
发表期刊	JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
ISSN	2523-3920
卷号	10 期号:2 页码:715-726
摘要	Thermoelastic damping is a significant energy dissipation mechanism in nano-resonator, and exploring its feature would lay a foundation for designing high-quality nano-resonators. Due to the size-dependent effect and the non-Fourier heat conduction effect arising in structures in nanoscales, the traditional models may fail to characterize thermoelastic damping in nano-resonators. To further develop the thermoelastic damping model in small scales, a novel thermoelastic damping model is established in the present work based on the modified couple stress theory and the non-Fourier heat conduction law. Based on the novel model, the exact expression of thermoelastic damping is obtained by the complex frequency method. In calculation, the results are validated by degrading the present model to the classical model, and the effects of length scale parameters, boundary conditions, reference temperature, and vibration modes on thermoelastic damping are examined and discussed in detail. The obtained results show that the influence of the present model on the amount of thermoelastic damping and the critical thickness is significant in small scales.
关键词	Modified couple stress theory Nano-resonators Memory-dependent derivative Thermoelastic damping Non-Fourier heat conduction
DOI	10.1007/s42417-021-00401-y
收录类别	SCIE
语种	英语
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
WOS记录号	WOS:000709660100001
出版者	SPRINGER HEIDELBERG
来源库	WOS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150066
专题	研究生院
通讯作者	He, Tianhu
作者单位	1.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China; 2.Lanzhou Jiaotong Univ, Sch Mech Engn, Lanzhou 730070, Peoples R China
第一作者单位	理学院
通讯作者单位	理学院
第一作者的第一单位	理学院
推荐引用方式 GB/T 7714	Zhao, Guobin,Shi, Shuanhu,Gu, Bingdong,et al. Thermoelastic Damping Analysis to Nano-resonators Utilizing the Modified Couple Stress Theory and the Memory-Dependent Heat Conduction Model[J]. JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES,2022,10(2):715-726.
APA	Zhao, Guobin,Shi, Shuanhu,Gu, Bingdong,&He, Tianhu.(2022).Thermoelastic Damping Analysis to Nano-resonators Utilizing the Modified Couple Stress Theory and the Memory-Dependent Heat Conduction Model.JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES,10(2),715-726.
MLA	Zhao, Guobin,et al."Thermoelastic Damping Analysis to Nano-resonators Utilizing the Modified Couple Stress Theory and the Memory-Dependent Heat Conduction Model".JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES 10.2(2022):715-726.