نتایج جستجو برای: transient thermoelastic analysis

تعداد نتایج: 2928018  

2005
George Avalos Irena Lasiecka

Abstract: The null controllability problem is considered for 2-D thermoelastic plates under hinged mechanical boundary conditions. The resulting partial differential equation system generates an analytic semigroup on the space of finite energy. Consequently, because the thermoelastic system is associated with an infinite speed of propagation, the null controllability question is a suitable one ...

2004
K. L. VERMA NORIO HASEBE

Analysis for the propagation of plane harmonic thermoelastic waves in an infinite homogeneous orthotropic plate of finite thickness in the generalized theory of thermoelasticity with two thermal relaxation times is studied. The frequency equations corresponding to the extensional (symmetric) and flexural (antisymmetric) thermoelastic modes of vibration are obtained and discussed. Special cases ...

2014
Rajneesh Kumar Sanjeev Ahuja S. K. Garg

This paper is concerned with the study of propagation of Stoneley waves at the interface of two dissimilar isotropic microstretch thermoelastic diffusion medium in the context of generalized theories of thermoelasticity. The dispersion equation of Stoneley waves is derived in the form of a determinant by using the boundary conditions. The dispersion curves giving the phase velocity and attenuat...

Journal: :Journal of physics 2023

Abstract This paper presents a novel approach to accurately simulate the dynamic characteristics of rack and pinion lifting mechanism while accounting for coupling effect meshing tooth pair stiffness grease in real-world environments. A structure-grease model is established based on deformation coordination conditions meshing. The incorporates term time-varying pinion. By analyzing combined com...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 1996

2015
Rajneesh Kumar

The present article deals with the two parts: (i)The propagation of plane waves in a microstretch thermoelastic diffusion solid of infinite extent. (ii)The reflection and transmission of plane waves at a plane interface between inviscid fluid half-space and micropolar thermoelastic diffusion solid half-space.It is found that for two-dimensional model, there exist four coupled longitudinal waves...

Journal: :The Japanese journal of physiology 1983
K Kometani K Yamada

The relation between shortening heat and sarcomere length was studied using fiber bundles from frog semitendinosus muscles as well as using whole muscles. The initial sarcomere length was varied between 2.0 and 3.66 micron. Shortening heat was estimated as the excess heat produced after a rapid isovelocity release in a 3 sec tetanus at 0 degrees C. The isometric control heat was measured in the...

2000
Ron Lifshitz M. L. Roukes

The importance of thermoelastic damping as a fundamental dissipation mechanism for small-scale mechanical resonators is evaluated in light of recent efforts to design high-Q micrometerand nanometer-scale electromechanical systems. The equations of linear thermoelasticity are used to give a simple derivation for thermoelastic damping of small flexural vibrations in thin beams. It is shown that Z...

2015
Guangming Cheng Chunyang Miao Qingquan Qin Jing Li Feng Xu Hamed Haftbaradaran Elizabeth C. Dickey Huajian Gao Yong Zhu

S1. Experimental Details on in-situ Bending Test including the Error Analysis and E-beam Conditions S2. More Experimental Results on Anelastic Relaxation S3. Discussion of Thermoelastic Relaxation S4. Theoretical Model of Anelasticity in ZnO NWs S5. Relation between the Present Theoretical Model and Gorsky Theory S6. EELS Experiments and Analysis S7. More Fitting Results S8. Supplementary Movie...

2010
S. P. Jung T. W. Park J. H. Lee W. H. Kim W. S Chung

Abstract—In this study, the thermoelastic instability (TEI) was analyzed using the finite element analysis technique. The governing dynamic and heat equations were described. Three dimensional thermomechanical analysis model of the disc brake system were created. An intermediate processor based on the staggered approached was used to exchange result data: temperature, friction contact power, no...

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