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Lamb Waves in Fluid-Loaded Plates

T. Kaufmann[1], F. Kassubek[1], D. Pape [1], M. Lenner[1]
[1]ABB Corporate Research, Baden-Dättwil, Switzerland

Lamb waves are elastic waves propagating in free solid plates. In the case of plates loaded with a fluid, the equations describing these waves have to ...

Piezotyres

T. Madhuranath[1], R. Praharsha[1], K. Srinivasa Rao[1]
[1]Lakireddy Bali Reddy College of Engineering, Mylavaram, Andhra Pradesh, India

Access to electricity has become a major problem. In the process of solving this problem we should consider even a small source of electricity. ...

Energy Transformation Damping

G.S. Mulder[1]
[1]Leiden, The Netherlands

A model for material damping is presented in terms of internal friction and in terms of a variation of stiffness. In the latter case the idea is that ...

Dynamics of Slender Structures

K. Lund
Kurt Lund Consulting, Del Mar, CA , USA

The present work formulates the dynamics of a slender structure as a long beam. This results in a PDE that is fourth-order in space, and second order ...

Optimal Placement of Piezoelectric Plates to Control Multimode Vibrations of Rotating Beam

F. Botta[1], D. Dini[2], S. Gentili[1], G. Cerri[1]
[1]Dipartimento di Ingegneria Meccanica e Industriale, Università degli Studi di Roma Tre, Roma, Italy
[2]Department of Mechanical Engineering, Imperial College London, London, United Kingdom

Turbomachines blades are forced by a load resulting from the interaction with the fluid. The consequent vibrations, and the associated fatigue ...

Thermal Stress in a Zero Thermal Expansion Composite

C. Romao, and M. White
Dept. of Chemistry and Institute for Research in Materials
Dalhousie University
Halifax, NS
Canada

A series of 2-D finite element models of a ZrO2-ZrW2O8 composite system were created in COMSOL Multiphysics to study the effect of pores between the ...

Micro Mechanical Exploration of Composites for Superior Properties

R. C. Thiagarajan, and K. V. Chiranjeevi
ATOA Scientific Technologies Private Limited
Bangalore, India

The predictive engineering of materials is matured from predicting properties from known morphology or constituents to engineering novel morphology for ...

Numerical and Experimental Analysis of Natural and Mixed Convection Heat Transfer for Vertically Arranged DIMM

G. Petrone, and G. Cammarata
University of Catania, Catania, Italy

 It is commonly recognized that careful thermal design of electronic equipments represents an unavoidable pre-production step in order to ensure ...

Numerical Modelling Of Moisture Related Mechanical Stress In Wooden Cylindrical Objects Using COMSOL: A Comparative Benchmark

H. Schellen, and J. Van Schijndel
Eindhoven University of Technology, Eindhoven, The Netherlands

For preservation of artefacts in a museum the indoor climate is often restricted to a very narrow interval for temperature, but most of all for ...

Novel Simulation of a Voltage-Driven Electro-Thermo-Mechanical MEMS Self-Oscillator

S. Ouenzerfi [1,2,3], H.A.C. Tilmans [2], S. El-Borgi[3,4], X. Rottenberg [2]
[1] KACST-Intel Consortium Center of Excellence in Nano-manufacturing Applications (CENA), Riyadh, KSA
[2] IMEC, Leuven, Belgium
[3] Applied Mechanics and Systems Research Laboratory, Tunisia Polytechnic School, University of Carthage, La Marsa, Tunesia
[4] Texas A&M University at Qatar, Mechanical Engineering Program, Engineering Building, Doha, Qatar

This paper presents the modeling and simulation of electro-thermo-mechanical self-oscillators, an emerging type of M/NEMS-enabled timing devices in ...