Artigos Técnicos e Apresentações

Aqui você encontrará apresentações realizadas nas Conferências de Usuários COMSOL de todo o mundo. As apresentações englobam pesquisas e produtos inovadores feitas por engenheiros e cientistas usando o COMSOL Multiphysics. Os tópicos abramgem uma grande gama de indústrias e aplicações, como elétrica, mecânica, escoamento e química. Use a função de busca "Quick Search" para encontrar apresentações na sua área de interesse.

Optimization of the Design Parameters of a Piezoelectric Actuator

G. Srivastava[1], R. Sharma[1], A. Goswami[2], A. Phani[2], and R. K. Dwivedi[1]
[1]Jaypee Institute of Information Technology, India
[2]Indian Institute of Science, India

In this work a cantilever beam has been chosen as the element of study, consisting of a piezoelectric polymer like PVDF with a thin permalloy layer coating on one side of it. This piezoelectric cantilever is designed using COMSOL software. It is seen that the deflection of the tip of a unimorph cantilever is dependent on its geometric dimension, type of material and the applied field. Hence in ...

Modeling of Dehydration of Mushroom Using Finite Element Method

C. Anandharamakrishnan[1], A. Choudhary[2], and R. Gopirajah [1]
[1]Human Resource Development,CSIR-Central Food Technological Research Institute, Mysore, India
[2]Manipal Institute of Technology, Manipal, Karnataka, India

Dehydration is one of the methods that would extend the shelf life of mushrooms. Dried mushrooms can be used in many different types of products. Furthermore, elevated temperatures during drying enhance enzymatic reactions that can result in improved flavor of dehydrated mushrooms. This study aims to model the dehydration of mushroom using finite element modeling (FEM) taking into account of ...

Design of a RF MEMS Switch

B. Mishra, M. P. S. Naidu, J. Raj, and Z. C. Alex
VIT University
Tamilnadu, India

This paper presents a novel design of a RF MEMS Switch. The switch is a capacitive type, which is actuated by an electrostatic force. The structure of the switch consists of a CPW (coplanar waveguides) transmission lines and a suspended membrane. The modelling of switch is done using COMSOL software and RF characteristics is found out by using CST software.

Design and Simulation of a Valveless Polymeric Micropump for Drug Delivery Applications

S. Babu[1], and P. Manohar[2]
[1]Department of Electrical and Electronics Engineering, M S Ramaiah Institute of Technology, Bengaluru, Karnataka, India
[2]Department of Medical Electronics, M S Ramaiah Institute of Technology, Bengaluru, Karnataka, India

Valveless micropumps have the advantage of being composed of least number of movable parts and hence can be used for long-term drug delivery applications. Their working principle is based on reciprocal forcing of fluid by an actuator through diffuser/nozzle elements generating a rectified mean flow. Micropumps based on different actuating mechanisms have already been designed and fabricated ...

Modeling and Simulation of Circular and Square Diaphragm Absolute Micro Pressure Sensors using COMSOL

M. Sundaram[1], A. Simha[2], S M. Kulkarni[3], and S. Bhat[4]
[1]Department of ICE, Manipal Institute of Technology, Manipal, India
[2]Department of Mechatronics, National Institute of Technology, Suratkal, India
[3]Department of Mechanical, National Institute of Technology, Suratkal, India
[4]Department of E&C, Manipal Institute of Technology, Manipal, India

The aim of this paper is to model and simulate a Circular and Square diaphragm absolute micro pressure sensors. With the applied pressure, the change in deflection and stress pattern of the diaphragm is analytically determined. The structures are then simulated using COMSOL Multiphysics®. The results obtained from analytical equations are compared with simulated results. The range and ...

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