G. R. Prakash, K. M. V. Swamy, S. Huddar, B. G. Sheeparamatti, Kirankumar B. B.
Basaveshwar Engineering College, Bagalkot, Karnataka, India
The focus of this paper is to study the effect on resonance frequency and power enhancement techniques of piezoelectric MEMS and modeling, design, and optimization of a piezoelectric generator based on a two-layer bending element(Figure 1) using COMSOL Multiphysics. An analytical relation was developed based on the shift in resonance frequency(Figure 2) caused by the addition of a thin film ...
L. Sujatha, B. Preethi
Rajalakshmi Engineering College, Chennai, India
MEMS gyroscope technology provides cost- effective method for improving directional estimation and overall accuracy in the navigation systems. This paper presents a tuning- fork gyroscope (TFG)  with a perforated proof mass. The perforated proof mass used in the design enables the reduction of the damping effect. This MEMS based gyroscope was designed using COMSOL Multiphysics 4.2a. This ...
K. Basu, P. Ghosh, A. Chanda
School of Bio Science and Engineering, Jadavpur University, Kolkata, West Bengal, India
Jadavpur University, Kolkata, West Bengal, India
According to clinical reports, cardiovascular disease has become a major global healthcare problem. The deposition of fats, cholesterol etc. at the arterials walls causes thrombus formation leading to stenosis and arterial blockage. To tackle this, along with arterial bypass, the use of Cardiovascular Stent is considered promising and effective (in single vessel and bi vessel diseases). While ...
G. Madabattula, S. K. Gupta
Department of Chemical Engineering, Indian Institute of Science, Bangalore, Karnataka, India
Low cost high energy density batteries that can be charged and discharged rapidly are required in a number of applications. Tapping energy from renewal resources such as solar, wind and tide requires rapidly generated energy to be first stored and then used round the clock. Storing energy of a moving vehicle as it slows down and recovering it to accelerate the vehicle later can significantly ...
C. Thiagarajan, Gururajan R., A. H. Baig, Prema S.
ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka India
University of Southern Queensland, Toowoomba Qld 4350, Australia.
RMK Engineering College, Chennai, Tamil Nadu, India
Stethoscope is in use for more than 200 years for medical diagnostics, especially for auscultation. Recently, the unprecedented growth in mobile technology revived the use of stethoscope for Telehealthcare. Digital or electronic stethoscopes are increasingly researched for use in Telehealthcare. This paper mainly focuses on the acoustical and multiphysics design aspects of the stethoscope for ...
S. Gupta, T. Pahwa, R. Bansal, V. Bansal, B. Prasad, D. Kumar
Electronic Science Department Kurukshetra University, Kurukshetra, Haryana
A new design of electrostatic comb drive actuator is presented in this paper by using different spring designs and with different folded beam lengths. An increased displacement of lateral comb drive actuator will subsequently be accomplished with the same actuation voltage. Stress distribution over different spring designs are simulated by COMSOL 3.5a using a standard comb drive with 4 movable ...
Numerical Study of Navier-Stokes Equations in Supersonic Flow over a Double Wedge Airfoil using Adaptive Grids
V. Gopal, R. Kolluru
BMS College of Engineering, Bangalore, Karnataka, India.
Numerical study of aerodynamic characteristics in steady laminar supersonic flow over a double wedge airfoil is carried out using commercially available finite element based CFD tool COMSOL Multiphysics. The aerodynamic characteristics of double wedge airfoil like lift and drag are analyzed by solving Navier-Stokes equations in the flow field for various thickness to chord ratios (t_c) and angle ...
A. A. Bhat, S. Agarwal , D. Sujish, B. Muralidharan, B. P. Reddy, G. Padmakumar, K. K. Rajan
Indira Gandhi Center for Atomic Research, Kalpakkam, Tamilnadu, India
Induction furnaces are employed for vacuum distillation process to recover heavy metals after electro-refining operation. Induction furnace of suitable heating rate and cooled by passive means are required to be developed for this purpose. It is planned to set up a mock up induction furnace which will simulate the conditions to be realized in actual vacuum distillation furnace for this purpose. ...
V. Ranjan, A. Kumar, G. Prakash, R. Mandal
Department of Mechanical Engineering, Indian School of Mines, Dhanbad, Jharkhand, India
Understanding the flow fields at the micro-scale is a key to develop methods of successfully mixing fluids for micro-scale applications. This paper investigates flow characteristics and mixing of three different geometries in micro-channel. A Circular groove micro mixer has been designed and simulated. One such channel is shown in Figure1. The geometry of the channels taken was rectangular with ...
P. Patel, P. Manohar
Electrical and Electronics Department, M. S. Ramaiah Institute of Technology, Bangalore, Karnataka, India
Micro machined motors are a recent development in the domain of electrical machines. Compared to the conventional electromagnetic motors, micro machined motors offer high torque at lower speed, and are compact in nature. This makes them suitable for applications in the field of microsatellite, biomedical, micro robot, automobile, and auto focusing camera. The present work describes the design ...