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Acoustics and Vibrations

COMSOL Multiphysics® Software for Simulation of Surface Response to Excitation Method for Manufacturing Process Performance Monitoring

H. Fekrmandi[1], N. Miniello[1], R. Kiflemariam[1], I. Nur Tansel[1]
[1]Mechanical & Materials Engineering Department, Florida International University, Miami, FL, USA

In this study, COMSOL Multiphysics® software was used to simulate the surface response to excitation method ... 扩展阅读

Prediction of Transformer Core Noise

R. Haettel[1], A. Daneryd[1], M. Kavasoglu[1], C. Ploetner[2]
[1]ABB Corporate Research, Västerås, Sweden
[2]ABB Transformers, Varennes, QC, Canada

Today, low noise is a mandatory feature for power transformers to comply with customer specifications and ... 扩展阅读

Prediction of Noise Generated by Electromagnetic Forces in Induction Motors

M. K. Nguyen[1], R. Haettel[2], A. Daneryd[2]
[1]KTH, Stockholm, Sweden
[2]ABB Corporate Research,Västerås, Sweden

Induction motors, as any other industrial products, have to comply with various requirements on noise levels. ... 扩展阅读

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

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 ... 扩展阅读

Simulation of Piezoelectric Nanofibers for Harvesting Energy Applications

S. Rouabah[1], A. Chaabi[1]
[1]Electronics Department, Constantine University, Constantine, Algeria

In this work, we have taken a model which is simulated using COMSOL Multiphysics®. It was used as a tool to ... 扩展阅读

Complete Modeling of a Vented Box Loudspeaker in COMSOL Multiphysics®

R. Vaucher[1]
[1]NEXO, Plailly, France

This paper describes the use of COMSOL Multiphysics® during the design of a vented box loudspeaker. Templates ... 扩展阅读

Application of a Weakly Non-Linear Analysis to the Analysis of Thermoacoustic Combustion Instabilities

D. Laera[1], S. M. Camporeale[1], G. Campa[2]
[1]Politecnico di Bari, Bari, Italy
[2]Ansaldo Energia, Genoa, Italy

The thermoacoustic combustion instabilities are complex phenomena that may occur in steady flow combustion ... 扩展阅读

Investigation of Mean-Flow Effects on Tubular Combustion Chamber Thermoacoustics Using a Burner Transfer Matrix Approach

A. Andreini[1], B. Facchini[1], A. Innocenti[1], D. Pampaloni[1]
[1]University of Florence, Florence, Italy

The paper presents a methodology to account for local mean-flow effects on thermo-acoustic instabilities to ... 扩展阅读

Efficient, Selective Piezoeletric Wave Transduction Using Interdigitated Electrodes

H. T. D. Grigg[1], T. H. Hanley[1], B. J. Gallacher[1]
[1]Newcastle University, Newcastle, Tyne and Wear, UK

This work enunciates the principles of SAW design from a physical perspective, examining the standard ... 扩展阅读

Support-Q Optimisation of a Trapped Mode Beam Resonator

T. H. Hanley[1], H. T. D. Grigg[1], B. J. Gallacher[1]
[1]Newcastle University, Newcastle-Upon-Tyne, UK

Introducing a disorder into a finite periodic oscillatory system induces the presence of a 'trapped mode': a ... 扩展阅读

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