Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

Numerical Study on Mechanical Properties of Stents with Different Materials during Stent Deployment with Balloon Expansion.

P. Ghosh[1], K. DasGupta[1], D. Nag[2], and A. Chanda[1]
[1]School of Bio Science & Engineering, Jadavpur University, Kolkata, West Bengal, India
[2]Mechanical Engineering Department, Jadavpur University, Kolkata, West Bengal, India

The main reason for stent implantation is to provide mechanical support to the arterial wall. So it is important to consider the different mechanical properties of different stent materials while studying the stent implant’s efficacy. The present study gives a comparative overview of mechanical aspects of different stent materials which are most commonly used in angioplasty. Deformation ...

On the Simulation of Electromagnetic Forming Process of a Tube using Multiphysics Software

S. Gawade[1], P. P. Date[2], and S. B. Sharma[1]
[1]Production Engineering. Dept. SGGS IE&T, Nanded, India
[2]Mechanical Engineering. Dept, IIT, Bombay, India

Electromagnetic forming (EMF) is a typical high speed forming process using the energy density of a pulsed magnetic field to form workpieces made of metals with high electrical conductivity like e.g. aluminium. This forming process can be very advantageous as compared to conventional forming process. EMF process is simulated by a commercial finite element analysis (FEA) solver, COMSOL ...

Two-Dimensional Quasi–Static Analysis For Induction Motor with Faulty Rotor

M. Manna, and S. Miglani
SLIET
Sangrur
Punjab, India

This paper presents the Finite Element Method technique for predicting performance of Induction motor having Electric and Magnetic asymmetry for rotor cage due to some broken rotor bars. The motor parameters like magnetic vector potential, flux density, surface currents have been determined very precisely by carrying out two dimensional quasi static, transient analysis and by using one of the ...

Design and Finite Element Analysis of Electrothermal Compliant Microactuators

A. R. Kalaiarasi, and S. H. Thilagar
Annauniversity Chennai
TamilNadu, India

Electrothermal actuators are capable of providing larger displacements compared to electrostatic actuators. Four designs for ETC actuators with the same material properties and same dimensions are studied.

Determination of Fundamental Frequency of a Thin Rectangular Perforated Plate using COMSOL Multiphysics

S. V. N. B. Prasad, and B. Raghavendra
BITS PILANI K K BIRLA
GOA CAMPUS, India

COMSOL Multiphysics 4.0 is being used to simulate the free vibrations of a plate. The results obtained by simulation in COMSOL are in close proximity to that found by Fast Fourier Transform analyzer and analytical method. As of now the vibration analysis of thin rectangular plates with perforations in rectangular pattern has been carried out. The study of vibration analysis of thin ...

3-D Design, Electro-Thermal Simulation and Geometrical Optimization of Spiral Platinum Micro-Heaters for Low Power Gas Sensing Applications Using COMSOL 4.1

V. Bansal, D. Kumar, B. Prasad, and A. Gujjar
Electronic Science Department

In this paper a thermal electric finite element method (FEM) analysis was used to investigate the thermal properties of individual electrically driven platinum micro-heaters. The geometric optimization for the micro-heater was performed by simulating a wide range of possible geometries using COMSOL 4.1. The simulated results of micro-heaters having an improved temperature distribution over ...

Simulation of Fast Response Thermocouple for the Nuclear Reactor Core

K. Dusarlapudi[1], B. K. Nashine[2], D. Bai[3], and C. S. Babu[1]
[1]KL University, Vaddeswaram, Guntur, Andhra Pradesh, India
[2]E.D&S.S, IGCAR Kalpakkam, India
[3]VIT, Vellore, India

Thermocouples have been used for measurement of temperature ever since the discovery of Seebeck effect. Though the voltage output of a thermocouple is a function of the temperature difference between hot and cold junctions, the response time and the magnitude of voltage depends on the geometry and material of the thermocouple also. This report deals with the study of the mineral-insulted ...

FEM Study on the Effect of Metallic Interdigital Transducers on Surface Acoustic Wave(SAW) Velocity in SAW Devices

A. K. Namdeo, and H. B. Nemade
Department of Electronics and Electrical Engineering
Indian Institute of Technology Guwahati
Assam, India

In this paper, we present study on the mass loading effect of the interdigital transducer (IDT) on surface acoustic wave (SAW) velocity in SAW devices, using COMSOL Multiphysics. We have simulated a one port SAW resonator made on YZ lithium niobate substrate and investigated the reduction of SAW velocity caused by the mass loading of aluminum IDT fabricated over the substrate, using finite ...

Simulation of Nuclear Radiation based Energy Harvesting Device using Piezoelectric Transducer

R. Prakash, K. M. V. Swamy, and B. G. Sheeparamatti
Basaveshwara Engineering College
Bagalkot, Karnataka,
India

MEMS(Microelectromechanical systems) based energy harvesting is process of extracting energy from natural resources in small amounts. Here, number of (millions) small energy harvesting modules lead to substancial energy. In this design, a piezoelectric material is used to scavenge energy from natural resources like radioactive source. COMSOL Multiphysics is used to model and simulate a ...

MEMS Electrostatic Comb Actuator: A Comparison of Different Structure Designs and Materials using COMSOL 3.5a

S. Kapoor[1], D. Aggarwal[2], and A. Gujjar[1]
[1]University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra, Haryana, India.
[2]Electronics Science Department, University Institute of Engineering and Technology, Kurukshetra University, Haryana, India.

The micro machining technology that emerged in the late 1980’s can provide micron sized sensors and actuators. Actuators are used for the transformation of non- mechanical input energy into mechanical output energy. There are many types of micro- actuation mechanisms, most commonly used are piezoelectric, magnetic, thermal, SMA, electrochemical, electrostatic actuation. Electrostatic actuation ...