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Acoustics and Vibrations

Ultrasound Scattering from a Rigid Sphere Using the Discontinuous Galerkin Method in the Time-Explicit Domain

D. Rubinetti[1], D. Weiss[1], E. Weingartner[2], M. Lenner[3]
[1]Institute of Thermal and Fluid Engineering, University of Applied Sciences and Arts Northwestern Switzerland, Switzerland
[2]Institute of Sensors and Electronics, University of Applied Sciences and Arts Northwestern Switzerland, Switzerland
[3]ABB Switzerland Ltd, Switzerland

Ultrasound technology is deployed in a variety of scientific and engineering applications, ranging from the ... 扩展阅读

FEM Simulation in Loudspeakers Design: Focus on Mechanical and Acoustic-Structural Analysis

G. Spatafora[1], E. Capucci[1], C. Corsini[1], R. Toppi[1]
[1]Faital Spa, Italy

Finite Element simulations are becoming an increasingly powerful tool in the transducer design process. The ... 扩展阅读

Time Domain Prediction of a Microperforated Plate Absorber Using the Finite Element Based Numerical Model

M. Hossain[1], A. McKay[1], E. Ross[1], G. Bennett[1]
[1]Trinity College Dublin, Ireland

There is an increasing number of applications that requires using the time-dependent analysis of finite ... 扩展阅读

Modelling the Structural-Dynamics of Electrical Overhead Line Power Conductors

M. Al Aqil[1], K. Kopsidas[1]
[1]The University of Manchester, United Kingdom

As a general definition, the presence of any repeated motion after a regular interval of time is known as ... 扩展阅读

A Complete Loudspeaker Design Suite Based on COMSOL® Apps

L. Bianchi[1]
[1]Elettromedia Srl, Italy

Multiphysical simulation is a daily-used tool for loudspeaker design and engineering, however it is still a ... 扩展阅读

Acoustic Topology Optimization – Implementation and Examples

R. Christensen[1]
[1]GN Hearing A/S, Denmark

Introduction In recent years there has been a focus on using topology optimization in the field of ... 扩展阅读

Estimating Parasitic Capacitances in MEMS Microphones using Finite Element Modeling

S. Shubham[1], M. Nawaz[1]
[1]KNOWLES ELECTRONICS, USA

MEMS microphones consist of a conductive backplate and a conductive flexible membrane. The backplate and the ... 扩展阅读

Optimal Design of Bass Reflex Loudspeaker Ports

A. Bezzola[1]
[1]Samsung Research America, USA

Determining an optimal port profile for a vented loudspeaker is still an unsolved problem. Studies that ... 扩展阅读

Characterization of BAW Modes Harmonically Generated (f-2f-3f) in LiNO3 SAW Devices Using COMSOL Multiphysics® Simulation Software

X. Pang[1], Z. ZHAO[1], Y. Yong[1]
[1]Rutgers University Department of Civil Engineering, USA

SAW devices, in which acoustic wave travels along the surface of a material, are used as filters, oscillators ... 扩展阅读

Numerical Studies on Double Expansion Chamber Mufflers with Acoustic Black Hole Modification

C. Zhao[1], M. Prasad[1]
[1]Stevens Institute of Technology, USA

It is well known that high noise levels can result in psychological and physiological discomforts. Mufflers ... 扩展阅读

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