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Acoustics and Vibrations

Simulation Absorption Curves on Acoustic Panel With Front Textiles ISO 354

K. Sánchez Vibæk [1], S. Fernández Pedrón [1],
[1] Kvadrat Soft Cells A/S, Copenhaguen, Nordhavn, Denmark

KVADRAT SOFTCELLS A/S, COMSOL A/S AND RESOLVENT P/S APPLICATION CREATED BY RESOLVENT FOR SIMULATING ... 扩展阅读

Multiphysics Simulation of a High Frequency Acoustic Microscope Lens

O. Tommiska [1], J. Mäkinen [1], J. Hyvönen [1], A. Meriläinen [1], A. Salmi [1], E. Hæggström [1],
[1] Department of Physics, Division of Materials Physics, University of Helsinki, Helsinki, Finland

High frequency ultrasound (100-1000 MHz) has been used in microscopy since the 1970s. The main imaging ... 扩展阅读

Development of a Wideband Steerable Acoustic Metasurface with COMSOL®

H. Lissek [1], E. Rivet [1], T. Laurence [1], R. Fleury [2],
[1] Ecole Polytechnique Fédérale de Lausanne, Signal Processing Laboratory LTS2, Switzerland
[2] Ecole Polytechnique Fédérale de Lausanne, Laboratory of Wave Engineering LWE, Switzerland

The recent introduction of acoustic metamaterials and metasurfaces in the literature has triggered an ... 扩展阅读

Fully Symmetrical Single-Suspension Electrodynamic Loudspeaker Using a Halbach Array

T. Laurence [1], H. Lissek [1],
[1] LTS2 - Acoustics Group, EPFL, Switzerland

Invented at the end of the XIXth century, the electrodynamic loudspeaker has not much changed since then. ... 扩展阅读

Sound Field Reconstruction in Low-Frequency Room Acoustics: A Benchmark Study with Simulation

T. Pham Vu [1], E. Rivet [1], H. Lissek [1],
[1] Signal processing laboratory LTS2, EPFL, Lausanne, Switzerland

When it comes to room acoustic design, it is of paramount importance to be able to assess the sound field ... 扩展阅读

Tunable Flat-Plate Absorber Design for Active Sound Absorption

R. Boulandet [1], K. O. Bjornsson [1], H. Lissek [1],
[1] Ecole Polytechnique Fédérale de Lausanne, Switzerland

Noise reduction at low frequencies is a major issue in many workspaces and indoor public places. Unlike mid- ... 扩展阅读

Investigation on Quiet Zones Created by Remote Impedance Control

T. Laurence [1], R. Boulandet [1], H. Lissek [1],
[1] LTS2 - Acoustics Group, EPFL, Switzerland

Quiet zones and other sound zones have been a strong topic of research for some time, due to the interest of ... 扩展阅读

Modeling the Dynamic Viscous and Thermal Dissipation Mechanisms in a Fibrous Porous Material

B.P. Semeniuk [1], P. Göransson [1],
[1] KTH Royal Institute of Technology, Marcus Wallenberg Laboratory for Sound and Vibration Research, Stockholm, Sweden

The main mechanisms of acoustic attenuation in a bundle of fibres typical of lightweight fibrous porous ... 扩展阅读

Simulation of the Electrical Properties of Conductive ITO Thin Films by Finite Element Analysis

R. A. Gerhardt [1], N. Xia [1], Y. Jin [1],
[1] Georgia Institute of Technology, Atlanta, GA, USA

Finite element analysis (FEA) can be used to study the electrical properties of conductive ITO thin films. ... 扩展阅读

Seat Motor Design Optimization

S. Qi [1], H. Cheng [1], L. Yang [1]
[1] Dare Auto, Inc., Plymouth, MI, USA

In this work, the production intent design of a motor with controller inside a car seat for head restraint ... 扩展阅读

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