V. S. Nagaraja, Ramanuja H. S., Deepak K, S. L. Pinjare
Electronics and Communication Engineering, Nitte Meenakshi Institute of Technology, Bangalore, Karnataka, India
In this work, a MEMS based condenser microphone [1,2] using Polyimide as the diaphragm has been designed. The microphone structure has a backplate placed on top of the diaphragm. The backplate and the diaphragm are made up of polyimide. The two polyimide plates are separated by air gap which is achieved by using Aluminium as a sacrificial layer in between, which is etched away to create the air ...
M. Raja , G. Hiremath, K. Ramachandran, P.V.A. Padmanabhan, T.K. Thiyagarajan
Karunya University, Coimbatore, Tamil Nadu, India
Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
Plasma spraying is one of the prominent technologies for wear, corrosion and high temperature resistant coatings. The coating quality is very important to increase the performance of the components as well as to protect the outer surface of the component from external environment. The coating quality characteristics depend on many plasma process parameters. Among these parameters, distribution of ...
C. Romao, and M. White
Dept. of Chemistry and Institute for Research in Materials
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 matrix (ZrO2) and filler (ZrW2O8) materials. Pores were modeled as ellipses concentric with the filler particles. Seventeen model geometries of varying microstructure were studied in order to determine correlations between microstructural factors ...
Time-Dependent Thermal Stress and Distortion Analysis During Additive Layer Manufacturing, by Powder Consolidation by Laser Heating
M.S. Yeoman, J. Sidhu
1. Continuum Blue Ltd., Tredomen Innovation & Technology Park, Tredomen, Ystrad Mynach, United Kingdom
BAE Systems, Advanced Technology Centre, Bristol, United Kingdom
A time-dependent COMSOL Multiphysics model of an additive manufacture process, which uses powder consolidation by laser heating was developed, providing a platform to better understanding the manufacture process & provide a tool to reduce resulting distortion & optimization of an additive manufacture process. The model simulates a high intense laser energy source moving along a pre-defined time ...
Viscoelastic Mechanical Analysis for High Temperature Process of a Soda-Lime Glass Using COMSOL Multiphysics
Material and Production Engineering Department, University of Naples “Federico II”, Naples, Italy
Glasses are widely used in the modern industry. For high temperature the glass behaves very much like a Newtonian liquid with temperature-dependent viscosity. The goal of this study is to set a numerical procedure in order to study the glass forming process of soda-lime glasses used in the automotive field by means numerical simulations.
Finite Element Convergence and Speed-Up Studies Using COMSOL Multiphysics and LiveLink™ for MATLAB® with Large Assembly Models
H. Pourzand, A.H. Aziz, A. Singh
Pennsylvania State University, State College, PA, USA
COMSOL Multiphysics along with its LiveLink™ for MATLAB® is used to investigate the needed number of elements and the required order of Lagrangean p element for a number of different simulation models. For this task, convergence study, speed up testing and interactive meshing is performed on a large assembly model which is also imported using the LiveLink™ for SolidWorks®. As a test bench, ...
Simulation and Analysis of Two Fans Air Speed Match Design in Off-Road Mine Tract Generator Using COMSOL
Y. Shen, D. Wu
Beijing University of Science & Technology, Beijing, China
This paper describes a model of self-ventilated generator cooling on a 170 tons off-road mine dump truck. Considering the space restrictions of mine dump truck, the cooling systems for the generator and the in-wheel motors of the rear axle share one air inlet duct. With the action of generator fan and rear duct fan, cooling air from the inlet duct will be divided into two parts to cool the ...
I. Gonin, M. Awida, T. Khabiboulline, V. Yakovlev
Fermilab, Batavia, IL, USA
Project X is a proposed proton accelerator complex at Fermilab. The CW LINAC is based on five types of resonators operating at three frequencies: half-wave, spoke, and elliptical. The low beam current for the CW operation of Project X requires cavities to operate at a high loaded Q and, thus, narrow bandwidth. Therefore, it requires optimal mechanical design of the cavities to minimize the ...
V. Sharma, A. K. Jayanthy, J. G. Baruah, J. V. Prabhu, K. Balakrishnan
SRM University, Chennai, Tamil Nadu, India
The analysis performed is categorized into two levels: 1. The thermal stress distribution on the sensing part with the variation in the substrate three glass material with appropriate dimensions and exposures. The reason behind this consideration of different materials is test the compatibility with the crystal. This variation in substrate material and its material properties shows which is ...
P. Ngankeu, and E. Gutierrez-Miravete
EMHART Glass Research Inc, Windsor, CT, USA
Rensselaer at Hartford, Hartford, CT, USA
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 that weaken container strength. This paper presents a model of the heat transfer due to the intermittent contact of glass with the plunger during several pressing ...