scholarly journals Updating 3D acoustic models with the constitutive relation error method: A two-stage approach for absorbing material characterization

2008 ◽  
Vol 310 (4-5) ◽  
pp. 985-997 ◽  
Author(s):  
V. Decouvreur ◽  
P. Ladevèze ◽  
Ph. Bouillard
Keyword(s):  
Constitutive Relation ◽  
Material Characterization ◽  
Two Stage ◽  
Acoustic Models ◽  
Absorbing Material ◽  
Constitutive Relation Error ◽  
Error Method

Updating 2D acoustic models with the constitutive relation error method

2004 ◽  
Vol 278 (4-5) ◽  
pp. 773-787 ◽  
Author(s):  
V. Decouvreur ◽  
Ph. Bouillard ◽  
A. Deraemaeker ◽  
P. Ladevèze
Keyword(s):  
Constitutive Relation ◽  
Acoustic Models ◽  
Constitutive Relation Error ◽  
Error Method

A Model Updating Technique Based on the Constitutive Relation Error for In Situ Identification of Admittance Coefficient of Sound Absorbing Materials

2015 ◽  
Vol 137 (5) ◽  
Author(s):  
Aurélie Progneaux ◽  
Philippe Bouillard ◽  
Arnaud Deraemaeker
Keyword(s):  
Constitutive Relation ◽  
Model Updating ◽  
Test Case ◽  
Important Place ◽  
Acoustical Properties ◽  
Absorbing Materials ◽  
Absorbing Material ◽  
Constitutive Relation Error ◽  
Faulty Sensors

The development of new absorbing materials and the description of their acoustical properties take an important place in the current acoustical researches. This paper focuses on the identification of the admittance coefficient of sound absorbing material from in situ measurements, using the constitutive relation error (CRE)-based updating technique. This technique consists of a two-stage approach, allowing to regularize the inverse problem. Moreover, the technique allows the detection of faulty sensors and therefore the correction of the erroneous measurements before the updating process. The technique is developed, in a first part of this paper, for acoustical problems with generalized boundary conditions, and illustrated, in a second part, on a numerical and a physical two-dimensional (2D) test case.

Extended constitutive relation error‐based approach: The role of mass in damage detection

2019 ◽  
Vol 26 (5) ◽  
pp. e2318 ◽  
Author(s):  
Xiaoyu Hu ◽  
Evan Chodora ◽  
Saurabh Prabhu ◽  
Sez Atamturktur
Keyword(s):  
Damage Detection ◽  
Constitutive Relation ◽  
Constitutive Relation Error
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