نتایج جستجو برای: thermal vibration

تعداد نتایج: 265804  

Journal: :international journal of nano dimension 0
t. j. prasanna kumar department of aerospace engineering, pvp siddartha engineering college, vijayawada 520 007, india. s. narendar defence research and development laboratory, kanchanbagh, hyderabad 500 058, india. b. l. v. s. gupta department of aerospace engineering, pvp siddartha engineering college, vijayawada 520 007, india. s. gopalakrishnan 4computational wave mechanics laboratory, department of aerospace engineering, indian institute of science, bangalore 560 012, india.

this paper presents the thermal vibration analysis of double-layer graphene sheet embedded in polymer elastic medium, using the plate theory and nonlocal continuum mechanics for small scale effects. the graphene is modeled based on continuum plate theory and the axial stress caused by the thermal effects is also considered. nonlocal governing equations of motion for this double-layer graphene s...

A Chakrabarti, A.H Sheikh S.K Singh,

Vibration of laminated composite and sandwich plate under thermal loading is studied in this paper. A refined higher order theory has been used for the purpose. In order to avoid stress oscillations observed in the implementation of a displacement based finite element, the stress field derived from temperature (initial strains) have been made consistent with total strain field. So far no study ...

Journal: :Proceedings. Mathematical, physical, and engineering sciences 2014
Lifeng Wang Haiyan Hu

The thermal vibration of a single-walled carbon nanotube (SWCNT) is investigated by using the models of Euler beam and Timoshenko beam with quantum effects taken into consideration when the law of energy equipartition is unreliable. The relation between temperature and the root of mean-squared (RMS) amplitude of thermal vibration at any cross section of the SWCNT is derived via the beam models ...

2013
Jianwei Zhang Xiaodong He Lin Yang Guoqiang Wu Jianjun Sha Chengyu Hou Cunlu Yin Acheng Pan Zhongzhou Li Yubai Liu

The thermal conductivity of monolayer graphene nanoribbons (GNRs) with different tensile strain is investigated by using a nonequilibrium molecular dynamics method. Significant increasing amplitude of the molecular thermal vibration, molecular potential energy vibration and thermal conductivity vibration of stretching GNRs were detected. Some 20%~30% thermal conductivity decay is found in 9%~15...

Journal: :Occupational and environmental medicine 2001
T Nilsson R Lundström

OBJECTIVES To assess the risk of disturbed thermal perception relative to exposure to vibration, to investigate a possible exposure-response relation and to analyse a possible relation between thermal perception and sensory symptoms. METHODS The study was based on a cross section of 123 male workers exposed to vibration and 62 male workers who were not exposed. Thermal perception of cold, war...

N.K Jain P.V. Joshi Shashank Soni,

The Magneto-Electro-Elastic (MEE) material exhibits pyroelectric and pyromagnetic effects under thermal environment. The effects of such pyroelectric and pyromagnetic behavior on vibration, buckling and deflection analysis of partially cracked thin MEE plate is presented and discussed in this paper. The aim of the study is to develop an analytical model for the vibration and geometrically linea...

B. L. V. S. Gupta S. Gopalakrishnan S. Narendar T. J. Prasanna Kumar,

This paper presents the thermal vibration analysis of double-layer graphene sheet embedded in polymer elastic medium, using the plate theory and nonlocal continuum mechanics for small scale effects. The graphene is modeled based on continuum plate theory and the axial stress caused by the thermal effects is also considered. Nonlocal governing equations of motion for this double-layer graphene s...

B. L. V. S. Gupta S. Gopalakrishnan S. Narendar T. J. Prasanna Kumar,

This paper presents the thermal vibration analysis of double-layer graphene sheet embedded in polymer elastic medium, using the plate theory and nonlocal continuum mechanics for small scale effects. The graphene is modeled based on continuum plate theory and the axial stress caused by the thermal effects is also considered. Nonlocal governing equations of motion for this double-layer graphene s...

In this study, nonlinear vibration of axially moving strings in thermal environment is investigated. The vibration haracteristics of the system such as natural frequencies, time domain response and stability states are studied at different temperatures. The velocity of the axial movement is assumed to be constant with minor harmonic variations. It is presumed that the system and the environment...

2004
Peter Siao Didier P. Cros

This review is provided as a service to the membership of the American Association of Electrodiagnostic Medicine (AAEM). This paper discusses quantitative sensory testing (QST) equipment using the following sensory modalities: 1) light touch, 2) vibration, 3) thermal, and 4) pain. First, is a summary of the different QST equipment and the equipments’ specifications as reported in the literature...

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