Thermoelastic damping analysis model of transversely isotropic micro/nano-resonators based on dual-phase-lag heat conduction model and surface effect

doi:10.1016/j.compstruct.2022.115664

IR > 研究生院

	Thermoelastic damping analysis model of transversely isotropic micro/nano-resonators based on dual-phase-lag heat conduction model and surface effect
	Shi, Shuanhu 1,2,3; Jin, Feng 3; He, Tianhu4 ; Shi, Guangtian 1,2
	2022-07-15
发表期刊	Composite Structures
ISSN	0263-8223
卷号	292
摘要	Thermoelastic damping (TED) is one of the key factors for lowering the quality factor (Q-factor) of micro/nano-resonators. However, due to a complex small-scale effect and governing equations of non-homogeneous isotropic materials, the existing TED models usually focus on homogeneous isotropic micro/nano-resonators. In this paper, a closed-form TED model is derived to estimate the influence of the small-scale effect on TED of transversely isotropic micro/nano-resonators. The surface effect and the dual-phase-lag model are included to distinguish the influence of mechanical and thermal small-scale effects on TED, respectively. The obtained TED model is theoretically verified. The results indicate that TED values are underestimated if the classical TED model is employed. Moreover, a critical thickness can be determined by the frequency shift curve is proposed. The small-scale effect results in higher TED values within the critical thickness. However, since the small-scale effect has a weak influence on TED, it can be neglected when the resonator thickness is higher than the critical thickness. Additionally, the surface effect plays a dominant role in improving the TED of nano-resonators. In this paper, a more reasonable theoretical approach for estimating TED in transversely isotropic micro/nano-resonators is provided. © 2022
关键词	Damping Heat conduction Q factor measurement Resonators Micro/nano Micro/nano-beam Micro/nano-resonator Nano beams Nanoresonators Non-Fourier heat conduction Surface effect Thermoelastic damping Transversely isotropic materials
DOI	10.1016/j.compstruct.2022.115664
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Mechanics ; Materials Science
WOS类目	Mechanics ; Materials Science, Composites
WOS记录号	WOS:000826220900001
出版者	Elsevier Ltd
EI入藏号	20221912097023
EI主题词	Thermoelasticity
EI分类号	641.2 Heat Transfer ; 931.1 Mechanics ; 931.2 Physical Properties of Gases, Liquids and Solids ; 942.2 Electric Variables Measurements
来源库	WOS
引用统计	被引频次：5[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/158492
专题	研究生院
通讯作者	Shi, Shuanhu
作者单位	1.Lanzhou Jiaotong Univ, Sch Mech Engn, Lanzhou 730070, Peoples R China; 2.Lanzhou Jiaotong Univ, Key Lab Serv Environm & Intelligent Operat & Maint, Lanzhou 730070, Peoples R China; 3.Xi An Jiao Tong Univ, Sch Aerosp, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China; 4.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Shi, Shuanhu,Jin, Feng,He, Tianhu,et al. Thermoelastic damping analysis model of transversely isotropic micro/nano-resonators based on dual-phase-lag heat conduction model and surface effect[J]. Composite Structures,2022,292.
APA	Shi, Shuanhu,Jin, Feng,He, Tianhu,&Shi, Guangtian.(2022).Thermoelastic damping analysis model of transversely isotropic micro/nano-resonators based on dual-phase-lag heat conduction model and surface effect.Composite Structures,292.
MLA	Shi, Shuanhu,et al."Thermoelastic damping analysis model of transversely isotropic micro/nano-resonators based on dual-phase-lag heat conduction model and surface effect".Composite Structures 292(2022).