Results 21 to 30 of about 26,846,501 (291)

Damage localization using experimental modal parameters and topology optimization [PDF]

, 2010
This work focuses on the developement of a damage detection and localization tool using the Topology Optimization feature of MSC.Nastran. This approach is based on the correlation of a local stiness loss and the change in modal parameters due to damages ...
Niemann, Hanno, Morlier, Joseph, Gourinat, Yves, Shahdin, Amir   +3 more
core   +1 more source

Dynamic Analysis of the Musical Triangles—Experimental and Numerical Approaches

Applied Sciences, 2022
This paper addresses the experimental and numerical dynamic analysis of curved bars used as percussion musical instruments. These structures are known as triangles, being made of various metal materials.
Mariana Domnica Stanciu, Silviu Marian Nastac, Voichita Bucur, Mihai Trandafir, Gheorghe Dron, Alina Maria Nauncef   +5 more
doaj   +1 more source

Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]

, 2010
This paper presents a basic experimental technique and simplified FE based models for the detection, localization and quantification of impact damage in composite beams around the BVID level.
Niemann, Hanno, Joseph Morlier, Morlier, Joseph, Gourinat, Yves, Hanno Niemann, Shahdin, Amir, Yves Gourinat, Amir Shahdin   +7 more
core   +1 more source

Comparison of Empty and Oil-Filled Transformer Tank Mode Shapes Using Experimental and FEM Modal Analysis

Energies
In this paper, the mode shapes of an empty and oil-filled transformer experimental model tank are obtained using 3D finite element method (FEM) modal analysis. For verification of the FEM analysis results, experimental modal analysis (EMA) is carried out
Karlo Petrović, Danilo Dobrić, Ivan Gotić, Tomislav Župan   +3 more
doaj   +1 more source

A review of experimental modal analysis methods and their applications in aerospace vehicles

Hangkong gongcheng jinzhan
Experimental modal analysis is a method of measuring the natural vibration characteristics of a structure through experiments. The analysis results are mainly used to modify the structural dynamic models and provide data support for structural dynamics ...
HUI Xinyu, LIU Fan, LI Xiaodong, SONG Qiaozhi   +3 more
doaj   +1 more source

Vision-Based Vibration Monitoring of Structures and Infrastructures: An Overview of Recent Applications

Infrastructures, 2020
Contactless structural monitoring has in recent years seen a growing number of applications in civil engineering. Indeed, the elimination of physical installations of sensors is very attractive, especially for structures that might not be easily or ...
Alessandro Zona
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Improved Modal Assurance Criterion using a quantification of identification errors per mode/sensor [PDF]

, 2014
Scanning laser vibrometer measurements generate detailed maps of modal characteristics in normal or 3D directions. Since many points are measured, individual validation of cannot be performed manually in a reasonable time frame and a notable fraction of ...
BALMES, Etienne, CHANCELIER, Thierry, MARTIN, Guillaume   +2 more
core  

Comparative operational modal analysis: Application of a semi-active vibration absorber to a manufacturing machine

, 2022
8 S.This paper presents a semi-active vibration absorber concept and its implementa-tion on a manufacturing machine for a vibration reduction scheme.
Melz, T., Atzrodt, H., Schmidt, M., Rue, G. de, Sabirin, C.R.   +4 more
core   +1 more source

Parameter Identification of a Three-dimensional Flexible Ring-based Model of a Tire Using Experimental Modal Analysis

International Journal of Automotive Engineering, 2019
A flexible ring-based model is simple, comprehensive, and accurate, and has been most frequently adopted in tire models with a low degree-of-freedom.
Masami Matsubara, Shozo Kawamura
doaj   +1 more source