See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.
View the COMSOL Conference 2018 Collection
MEMS and Nanotechnologyx

Design and Simulation of MEMS based Thermally Actuated Positioning Systems

D. Mallick[1], P. K. Podder[1], A. Bhattacharyya[1]
[1]Institute of Radio Physics & Electronics, University of Calcutta, Kolkata, India

With continuous advancement in nanotechnology, requirement is rising for high precision motion controlled positioning system. Such system plays crucial role in the fabrication of micro and nano-sized objects and assemblies. They can be used for automated mask aligner, as biological ... Read More

Design and Simulation of an Orbiting Piezoelectric MEMS Gyroscope Based on Detection of Phase-Shift Signals new

S. Gorelick[1], J. R. Dekker[1], B. Guo[1], H. Rimminen[1]
[1] VTT Technical Research Centre of Finland, Espoo, Finland

The feasibility of phase-sensitive detection of angular-rates using bi-directional orbiting piezoresonators suspended by thick annular springs with thin-film aluminium nitride piezoactuators on top of them was investigated. The ring-shaped flexures are more suitable for supporting the ... Read More

Push or Pull, How Does Silk Flow?

J. Sparkes [1],
[1] University of Sheffield, Sheffield, UK

Silk is one of the longest used and most recognizable textiles that we, as a society, use regularly. We see it as a luxury good, worn as an indicator of success and value. However, despite mankind having domesticated and farmed silkworms for millennia, we still know relatively little ... Read More

Modeling of the Clamping Fixture of a Piezoelectric Cantilever-type Energy Harvesting Device

T. Hoang [1,2], G. Poulin-Vittrant [2], G. Ferin [1], F. Levassort [2], C. Bantignies [1], A. Nguyen-Dinh [1], M. Bavencoffe [2]
[1] Advanced Research dept., VERMON S.A., Tours, France
[2] GREMAN UMR 7347, Université de Tours, CNRS, INSA Centre Val de Loire, Blois, France

Over the last decade, ambient vibration energy harvesting by piezoelectric materials has been an area of extensive research. This technology enables to convert wasted mechanical energy available in our environment into useful electrical energy to power up autonomous wireless sensors ... Read More

COMSOL API Based Toolbox for the Mixed-Level Modeling of Squeeze-Film Damping in MEMS: Simulation and Experimental Validation

M. Niessner[1], G. Schrag[1], J. Iannacci[2], and G. Wachutka[1]
[1]Institute for Physics of Electrotechnology, Munich University of Technology, Munich, Germany
[2]MEMS Research Unit, Fondazione Bruno Kessler, Povo di Trento, Italy

We present an easy-to-use toolbox for the automated generation of reduced-order mixed-level models for the evaluation of squeeze-film damping in microelectromechanical systems. The toolbox is programmed in JAVA and heavily exploits the functionality provided by the COMSOL API. The ... Read More

Reliability Enhancement of Bio MEMS based Cantilever Array Sensors for Antigen Detection System using Heterogeneous Modular Redundancy

L. S. Sundharam[1]
[1]Kumaraguru college of Technology, Coimbatore, Tamil nadu, India

The objective of the work is to propose a reliability enhancement model for antigen detection system (ADS) using bio MEMS based cantilever array sensors using heterogeneous modular redundancy technique. The reliability of the ADS is expressed in terms of the constituent sub systems which ... Read More

Design and Simulation of MEMS-based Sensor for Artificial Hand

P. Prema[1], Sakthivishnu.R[1], Sowmya. R[1], Chandra Devi K[1], Meenakshi Sundaram. N[1]
[1]PSG College of Technology, Coimbatore, Tamil Nadu, India

An artificial hand is the one that replaces the hand lost through trauma, disease, or congenital conditions. The proposed design is to simulate a sensor, used in prosthetic hand so as to measure the pressure required to hold the object, using COMSOL Multiphysics®. The physical parameters ... Read More

Low Cost All Optical Swept Source for Optical Communication Applications

J. T. Andrews[1], S. Chaurasiya[1], O. P. Chaudhary[1], D. Agarwal[1]
[1]National MEMS Design, Department of Applied Physics, Shri G S Institute of Technology & Science, Indore Madhya Pradesh, India

By introducing a periodic modulation in a waveguide, it is possible to create an interaction between forward-traveling and backward-traveling modes of an optical waveguide. Bragg grating may be a one dimensional diffraction grating which diffracts light from the forward-traveling mode ... Read More

Rough Surface Modeling of PDMS Polymer through Fractal Dimensions

D. Altuve [1], G. Fernandez [1], L. Paredes [2],
[1] Circuits and Electronics Department, Universidad Simón Bolívar, Caracas, Miranda, Venezuela
[2] Faculty of Electronic and Biomedical Engineering, Universidad Antonio Nariño, Tunja, Colombia

A good approximation of rough surfaces and their random behaviour is very important in some engineering problems. Fractal modelling provide an alternative to generate rough surfaces based in statistically self-similar non-Euclidean geometries, as seen in [Fig. 1]. Through a frequency ... Read More

Modeling and Simulation of MEMS Based 3D Vibrating Gyroscope for Mobile Robotics Applications

M. Ramya, R. P. S. Valli, R. Vidya, G. Anju, and M. Alagappan
PSG College of Technology
Tamil Nadu, India

In this study, a biomimetic vibrating 3D MEMS Gyroscope is designed, consisting of two circular diaphragms with a club shaped structure placed over one of them. This MEMS based vibrating gyroscope was modeled and simulated using COMSOL Multiphysics 4.1 - MEMS module. The purpose of ... Read More