Thermoelastic damping analysis in micro-beam resonators considering nonlocal strain gradient based on dual-phase-lag model

doi:10.1016/j.ijheatmasstransfer.2021.121771

IR > 研究生院

	Thermoelastic damping analysis in micro-beam resonators considering nonlocal strain gradient based on dual-phase-lag model
	Gu, Bingdong 1,3; He, Tianhu2 ; Ma, Yongbin2
	2021-12
发表期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN	0017-9310
卷号	180
摘要	Thermoelastic damping (TED), as a main source of intrinsic energy dissipation, is crucial to the design of the micro/nano-devices and-systems with higher quality factor ( Q-factor). However, the classical analy-sis model of TED fails in micro/nano-scale due to the influence of small-scale effect. The present article focuses on investigating the influence of scale effect on the TED of micro-beam resonators by consider-ing stress nonlocal and higher-order strain gradient effects. Firstly, the governing differential equations are formulated by employing the nonlocal strain gradient theory (NSG) in conjunction with the dual-phase-lag (DPL) heat conduction model. According to the assumption of vibration mode and the boundary conditions, the size-dependent Q-factor expression of TED is derived by the complex frequency method. Finally, the influences of various parameters on the TED of micro-beam resonators, such as nonlocal pa-rameter, length scale coefficient, slenderness ratio and material type, are discussed in detail. And then, the analysis results are compared with the TED of classical thermal-mechanical model. This article pro -vides a novel theoretical analysis model of the TED in micro/nano-meter scale field, which has practical significance in the design of high-efficiency devices and systems. (c) 2021 Elsevier Ltd. All rights reserved.
关键词	Thermoelastic damping Nonlocal strain gradient Dual-phase-lag heat conduction Scale effect Euler-Bernoulli beam
DOI	10.1016/j.ijheatmasstransfer.2021.121771
收录类别	SCIE
语种	英语
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS记录号	WOS:000706781600006
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：18[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/150053
专题	研究生院理学院
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China; 3.Qinghai Minzu Univ, Sch Civil & Transportat Engn, Xining 810007, Peoples R China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Gu, Bingdong,He, Tianhu,Ma, Yongbin. Thermoelastic damping analysis in micro-beam resonators considering nonlocal strain gradient based on dual-phase-lag model[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2021,180.
APA	Gu, Bingdong,He, Tianhu,&Ma, Yongbin.(2021).Thermoelastic damping analysis in micro-beam resonators considering nonlocal strain gradient based on dual-phase-lag model.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,180.
MLA	Gu, Bingdong,et al."Thermoelastic damping analysis in micro-beam resonators considering nonlocal strain gradient based on dual-phase-lag model".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 180(2021).