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Acoustics and Vibrations

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

On The Directional Response of Multi-Driver Column Loudspeaker Configurations Using FEA and BEM

R. Balistreri [1],
[1] Klipsch Group, Inc, Indianapolis, IN, USA

Column Loudspeakers employ multiple drivers to get close to a radiating line source. A line source gives ... 扩展阅读

Modeling, Simulation, and Optimization of Piezoelectric Bimorph Transducer for Broadband Vibration Energy Harvesting in Two-piece Trapezoidal Approach

N. Chen [1], V. Bedekar [1],
[1] Middle Tennessee State University, Murfreesboro, TN, USA

The objective of the research is to design a broadband energy harvester device through the two-piece non ... 扩展阅读

Analysis of Mechanical Sensitivity of MEMS Pressure Diaphragm for Contact Formation

S. Shubham [1], M. Nawaz [1],
[1] Knowles Electronics, Itasca, IL, USA

MEMS Pressure sensors work on the principle of mechanical bending of thin diaphragm under applied load over ... 扩展阅读

Vibration and Noise Analysis of the Feather River Bridge

L. A. De Jesús Díaz [1], R. Daniel Costley [1], H. Díaz-Alvarez [1],
[1] Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, MS, USA

The U.S. Army Engineer Research and Development Center (ERDC) is conducting research using infrasound arrays ... 扩展阅读

Resonance Frequency of a Helmholtz Resonator

R. Hill [1], M. Mendieta [1], P. Bruce [1], E. Stokes [1]
[1] Electrical and Computer Engineering Department, University of North Carolina - Charlotte, Charlotte, NC, USA

Acoustic metamaterials commonly use Helmholtz resonators to attenuate an acoustic signal at the resonator’s ... 扩展阅读

Load Noise Calculation of a Three-Phase Power Transformer

C. S. Lin [1],
[1] Pitotech. Co Ltd., Changhua City, Changhua, Taiwan

Vibrations and noise of high power transformers have attracted considerable experimental and theoretical ... 扩展阅读

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