Study of the Hershel-Quinke Resonator

MATEC Web of Conferences ◽

10.1051/matecconf/202032000025 ◽

2020 ◽

Vol 320 ◽

pp. 00025

Author(s):

Veronika Nikolaeva ◽

Alexandr Komkin

Keyword(s):

Finite Element ◽

Finite Element Modeling ◽

Analytical Model ◽

Transmission Loss ◽

Geometric Parameters ◽

Numerical Calculations ◽

Element Modeling

In this paper, the transmission loss of a Herschel-Quincke resonator is investigated. An analytical model of such a resonator is considered. The finite element modeling of the resonator has also been carried out. It is shown that the resonance peaks of the transmission loss spectrum in the analytical model are shifted relative to the results of numerical calculations, as a result of which it is necessary to introduce corrections for the length of the resonator tubes into the analytical model. The amendments made it possible to correct the results of analytical calculations, ensuring their reliability. The dependence of the resonator bandwidth as a function of its geometric parameters is investigated.

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EVALUATION OF ANALYTICAL AND FINITE ELEMENT MODELING ON PIEZOELECTRIC CANTILEVER BIMORPH ENERGY HARVESTER

Transactions of the Canadian Society for Mechanical Engineering ◽

10.1139/tcsme-2013-0050 ◽

2013 ◽

Vol 37 (3) ◽

pp. 621-629 ◽

Cited By ~ 3

Author(s):

Long Zhang ◽

Keith A. Williams ◽

Zhengchao Xie

Keyword(s):

Finite Element ◽

Finite Element Modeling ◽

Analytical Model ◽

Energy Harvester ◽

Electrical Energy ◽

Working Environment ◽

Dynamic Responses ◽

Power Sources ◽

Element Modeling ◽

Piezoelectric Cantilever

Harvesting the electrical energy from their working environment has become a feasible choice of realizing self-powered systems or providing supplementary power sources to the battery. In this paper, a pre-loaded piezoelectric cantilever bimorph (PCB) energy harvester is adopted as the research object, for which a single degree-of-freedom analytical model and finite element modeling have been carried out to study its dynamic responses. The laboratory experiments have also been performed to validate the analytical and the finite element modeling. It shows that finite element modeling has a better agreement with the experimental results than the analytical model, while the latter has a rough accuracy and can be used to obtain quick estimations of the dynamic response of the PCB energy harvester in certain cases.

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Investigations of the Effects of Electrochemical, Environmental and Geometric Parameters on Galvanic Coupling through Finite Element Modeling

ECS Meeting Abstracts ◽

10.1149/ma2019-02/12/855 ◽

2019 ◽

Keyword(s):

Finite Element ◽

Finite Element Modeling ◽

Geometric Parameters ◽

Galvanic Coupling ◽

Element Modeling

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Acoustic Characteristics of Noise Absorbing Barriers

MATEC Web of Conferences ◽

10.1051/matecconf/202032000002 ◽

2020 ◽

Vol 320 ◽

pp. 00002

Author(s):

Gleb Nazarov ◽

Dmitry Nepryakhin ◽

Alexandr Komkin

Keyword(s):

Finite Element ◽

Finite Element Modeling ◽

Software Package ◽

Numerical Calculations ◽

Comsol Multiphysics ◽

Acoustic Characteristics ◽

Element Modeling ◽

Noise Barrier ◽

Absorbing Layer

The acoustic characteristics of the semi-infinite noise barrier were studied using finite element modeling in the COMSOL Multiphysics software package. The features of the finite element partition into the accuracy of the results are estimated. The results of numerical calculations of the acoustic efficiency of a barrier with and without a sound absorbing layer are presented. The influence on the acoustic efficiency of the noise barrier of the length and thickness of the sound absorbing layer is analyzed.

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Forced Response of Disks due to Distributed Pressure Fields

Volume 6A: 18th Biennial Conference on Mechanical Vibration and Noise ◽

10.1115/detc2001/vib-21392 ◽

2001 ◽

Author(s):

A. H. Mohamad ◽

J. Ravoux ◽

G. Jacquet-Richardet

Keyword(s):

Finite Element ◽

Finite Element Modeling ◽

Analytical Model ◽

Forced Response ◽

Major Influence ◽

Finite Element Models ◽

Circular Plates ◽

Element Modeling ◽

Pressure Fields ◽

Distributed Pressure

Abstract The shape and the frequency of excitation, induced by distributed pressure fields, have both a major influence on the associated response of bladed disks. The way those pressure fields are considered by finite element models have then to be as accurate as possible. In this paper, an analytical model, adapted to the prediction of the forced response of clamped-free circular plates, due to distributed pressure fields, is first derived. This model is considered as a reference in order to assess the effectiveness of different finite element modeling.

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