Sensors, MEMS, Electronics – Page 272

A Novel Approach for Volume-Integral Evaluation in the BEM

Ding J., Ye W., Georgia Institute of Technology, US

The need for efficient solutions to problems with complex 3-D geometries, such as those encountered in micro-electro-mechanical systems (MEMS), has led to the development of fast algorithms. Based on the accelerated Boundary Element Method (BEM), [...]

Perturbation Analysis of TBR Model Reduction in Application to Trajectory-Piecewise Linear Algorithm for MEMS Structures

Vasilyev D., Rewienski M., White J.K., Massachusetts Institute of Technology, US

MEMS devices generate challenging test cases for nonlinear model order reduction methods, due to their strongly nonlinear behavior. One of the model order reduction methods which can handle this nonlinear behavior is a Trajectory-Piecewise linear [...]

Error Estimation for Arnoldi-based Model Order REduction of MEMS

Bechtold T., Rudnyi E.B., Korvink J.G., University of Freiburg, Germany, DE

In this paper we present a heuristic error estimation for the Pade-type approximation of transfer function via Arnoldi algorithm. We suggest using the solution of the Lyapunov equations for reduced-order systems as a stop-criterion in [...]

Fast BEM Solution for Coupled 3D Electrostatic and Linear Elastic Problems

Masters N.D., Ye W., Georgia Institute of Technology, US

This paper presents the development of a precorrected-FFT 3D BEM solver for linear elastic problems. This can be used with existing fast BEM solvers for electrostatics and Stokes flow to efficiently solve coupled problems, as [...]

Multiscale Simulation of Flow-Induced Texture Formation in Thermotropic Liquid Crystals

Grecov D., Rey A.D., McGill University, CA

This paper presents theory and simulation of flow-induced structures, useful to the creation of synthetic material structures and to the biomimetics of natural fibers. We present a multiscale theory and simulation of hydrodynamic texture formation [...]

Effective Elastic Moduli of Nanocomposites with Prescribed Random Orientation of Nanofibers

Buryachenko V.A., Roy A., University of Dayton Research Institute, US

Experimental research and molecular dynamic simulation proved that nanofibers can be effectively considered in the framework of continuum mechanics as the homogeneous prolate spheroidal homogeneous inclusions with a large aspect ratio. Nanocomposite is modeled as [...]

REMD toolkit : A Composable Software to Generate Parallelized Simulation Programs

Ito M., Nagashima U., AIST, JP

We developed a toolkit to generate a replica exchange method program which is suitable to solve the multiple-minima problem that prevents the accurate estimation of thermodynamical quantities. The toolkit was designed as a set of [...]

Numerical Computation of Dispersion Relations for Multi-layered Anisotropic Structures

Botkin N.D., Hoffmann K-H, Pykhteev O.A., Turova V.L., Center of Advanced European Studies and Research, DE

The paper presents an algorithm and a program for the computation of the propagation velocity of acoustic waves excited in anisotropic multi-layered structures. This investigation is motivated by the modeling of a biosensor that serves [...]

An Efficient Multiscale-Linking Algorithm for Particle Deposition

Magan R.V., Sureshkumar R., Washington University, US

A multiscale-linking computer simulation of irreversible deposition of particles is developed by integrating mesoscopic Brownian dynamics simulations with continuum level conservation laws. The algorithm accounts for the flux of the particles from the bulk suspension [...]

Computational Challenges in Nanoscale Device Modeling

Polizzi E., Sameh A., Sun H., Purdue University, US

The development of new simulation tools is critical for the exploration of quantum transport in nanoscale devices. Such simulation is commonly performed by solving self-consistently the transport problem using The Non-Equilibrium Green's Functions (NEGF) formalism [...]