A crucial factor concerning modern reactors is a combination of laws and electro-technical rules defining appropriate produced sound levels. Currently, it is an important issue to reduce noise in order to fulfill all sound requirements.... COMSOL Conference 2007, Grenoble L. Verbruggen1, J. Kotiniitty2, and M. Lehtonen1 1Power Systems and High Voltage Laboratory, Helsinki University of Technology, Helsinki, Finland 2Nokian Capacitors Ltd., Tampere, Finland
Though used widely in weight measurement, load cell’s theory is tedious enough to practice. This paper explains and discusses how strain gauges and Wheatstone Bridges work, both of which are important components of the load cell. COMSOL... COMSOL Conference 2007, Taipei W. L. Wang, W. H. Liao, and C. G. Zeng Department of Mechanical Design Engineering, National Formosa University
Objective of this paper is the development and implementation of a finite element model, in a COMSOL Multiphysics context, for the prediction of the aeroelastic behavior of rotor blades. In particular, the attention is focused on new... COMSOL Conference 2010, Paris E. Piccione, G. Bernardini, and M. Gennaretti University Roma Tre Dept. of Mechanical and Industrial Engineering, Via della Vasca Navale, Rome, Italy
Musculoskeletal mineralised tissues (MMTs), like bone or tendon, are a prime example of naturally occuring, hierarchically structured material. They display a great variety in mechanical function but are all based on essentially the same... COMSOL Conference 2010, Paris A. Gerisch1 , S. Tiburtius1 , Q. Grimal2 , and K. Raum3 1 Technische Universität Darmstadt, Germany 2 Université Pierre et Marie Curie Paris VI, France 3 Charité-Universitätsmedizin Berlin, Germany
The study of deformation of an adhesively bonded sandwich structure reduces to solving the biharmonic equation for the Airy Stress subject to mixed boundary conditions. Because of the nature of the boundary conditions, this boundary value... COMSOL Conference 2010, Boston R. Malek-Madani, and J.J. Radice US Naval Academy, Annapolis, MD, USA
This paper will give a short overview of use of COMSOL Multiphysics for analyzing ancient Greek and Roman catapults with the main focus on the energy storing torsion springs. Catapults have been known and used in the Greek and Roman world... COMSOL Conference 2010, Paris K.M. Paasch Center for Product Development, Mads Clausen Institute, South Danish University, Denmark
The paper attempts to give a contribution to the dynamic analysis of musical instruments. A multidisciplinary approach oriented to the study of mechanical, structural, vibratory and acoustical phenomena related to stringed instruments is... COMSOL Conference 2008, Hannover E. Ravina Dept. of Mechanics and Machine Design, Research Centre on Choral and Instrumental Music (MUSICOS), University of Genoa, Italy
The press and blow (P&B) process is widely used to produce glass containers. While the P&B process has demonstrated to be capable of reducing container weight by as much as 33%, it can also induce the formation of micro-checks... COMSOL Conference 2008, Boston P. Ngankeu1 , and E. Gutierrez-Miravete2 1 EMHART Glass Research Inc, Windsor, CT, USA 2 Rensselaer at Hartford, Hartford, CT, USA
In this study, we extend the Convolution-Perfectly Matched Layer (C-PML) method we have developed for a first order system describing elastic waves in velocity and stress formulation to the same equation written as a second order system... COMSOL Conference 2007, Grenoble O. Bou Matar1,2, E. Galopin1, Y. Li1,2, and O. Ducloux1,2 1Institut d'Electronique, de Micro-électroniqueet de Nanotechnologie, Villeneuve d'Acsq, France 2Laboratoire Européen Associé en MagnétoAcoustiqueNonlinéaire de la matière condensée (LEMAC), Ecole Centrale de Lille, Villeneuve d'Ascq, France
A numerical analysis on transient three-dimensional temperature distribution in a semi-infinite solid, irradiated by a moving Gaussian laser beam, is carried out numerically by means of the code COMSOL Multiphysics. The investigated... COMSOL Conference 2008, Hannover N. Bianco1 , O. Manca2 , S. Nardini2 , and S. Tamburrino2 1 Dipartimento di Energetica, Termofluidodinamica applicata e Condizionamenti ambientali, Università degli Studi Federico II, Napoli, Italy 2 Dipartimento di Ingegneria Aerospaziale e Meccanica, Seconda Università degli Studi di Napoli, Aversa (CE), Italy
This paper deal of the forming process applied to the thermoplastic composites. A new thermoforming process that uses rubber particles collection as flexible mould was presented and numerically modeled. A characterization of the rubber in... COMSOL Conference 2009, Milan R. Carbone1 , V. Antonelli2 3 , A. Langella1 , and R. Marissen3 1 Material and Production Engineering Department, Università degli Studi di Napoli Federico II, Napoli, Italy 2 Institute of Lightweight Structures, Technische Universität München, München, Germany 3 Design and Production of Composite Structure, Delft University of Technology, Delft, The Netherlands
The paper presents an implementation in COMSOL Multiphysics of Holzapfel's material model for the viscoelastic stress response of carbon-black filled rubber at large strains. The simulation uses the Structural Mechanics Module... COMSOL Conference 2006, Prague B. Marvalov Technical University of Liberec, Czech Republic
The fatigue is the most important criterion for the securities parts (brake system for example). The increasing use of shaped cast aluminium in the security automotive parts has focused interest on the fatigue of theses alloys. The... COMSOL Conference 2005, Boston Battaglia, J.L., Rozot, J.M. France
The authors present a method for estimating fatigue life due to crack initiation using FEM under multiaxial random loading. The proposed method uses the multiaxial fatigue failure criteria based on the critical plane concept. Damages... COMSOL Conference 2006, Frankfurt A. Nieslony1 , and C.M. Sonsino2 1 Opole University of Technology, Department of Mechanics and Machine Design, Opole, Poland 2 Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF, Darmstadt
Saint-Venant general rod theory is used to calculate the elastic factors of a section through the numerical solution of a system of partial differential equations. The elastic properties so evaluated are used in a geometric nonlinear... COMSOL Conference 2009, Milan A. Genoese1 , A. Genoese1 , and G. Garcea1 1 Dipartimento di Modellistica per l'Ingegneria, Università della Calabria, Arcavacata di Rende, CS, Italy
Among the several types of capacitors, the double-layer and redox types have gathered increasing attention to address some of the heavy power demands of modern technology. In redox capacitors, charge is stored chemically via... COMSOL Conference 2008, Boston J. Sotero-Esteva1 , M. Rosario-Canales2 , P. Gopu3 , and J. Santiago-Avilés3 1 Department of Mathematics, University of Puerto Rico at Humacao, Humacao, PR 2 Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA 3 Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, USA
This paper presents the most important safety issues of the thin glass shell of the LBT Adaptive Secondary Mirror. Two overstressing conditions are investigated: the condition in which the mirror shell is passively supported and the... COMSOL Conference 2005, Boston Del Vecchio C., Busoni L., Riccardi, A. INAF-OAA
The present study focuses on the design and analysis of a single-engine, propeller-driven general aviation airplane. Initial weight estimation based on the initial sketch and the design mission profile is conducted. The estimated weight... COMSOL Conference 2010, Boston G. Atmeh1 , F. Darwish1 , and Z. Hasan2 1 Jordan University of Science and Technology, Irbid, Jordan 2 Texas A&M University, College Station, TX, USA
In this work, we describe the design of a new type of microrobot, the Catom, which is the basic unit of the modular robotic system Claytronics. The Catom is an autonomous, free standing, three dimensional microrobot, which uses... COMSOL Conference 2010, Boston M.E. Karagozler, and S.C. Goldstein Carnegie Mellon University, Pittsburgh, PA, USA
This paper characterizes and models the bending motion of the strip-type Ionic Polymer Metal Composites (IPMC) actuators using the theory of Large Deflections of Beams. From here it derives a thermal analogy. The mathematical model has... COMSOL Conference 2007, Tokyo D. M. G. Preethichandra1, B. G. L. T. Samaranayake2, A. M. U. S. K. Alahakoon2 and K. Kaneto1 1Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Hibikino, Wakamatusu-Ku, Kitakyushu-Shi, Japan 2Department of Electrical and Electronics Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya, Sri Lanka