Deformation measurements of tunnel segments at a newly developed test rig / Deformationsmessungen an Tübbingen mit einem neu entwickelten Prüfstand

2016 ◽  
Vol 9 (3) ◽  
pp. 180-187 ◽  
Author(s):  
Paul Gehwolf ◽  
Christoph Monsberger ◽  
Stefan Barwart ◽  
Robert Wenighofer ◽  
Robert Galler ◽  
...  
Keyword(s):  
Test Rig ◽  
Deformation Measurements

Deformation Measurements by Echocardiography versus Late Enhancement Magnetic Resonance Imaging in Patients with Coronary Artery Disease

2012 ◽  
Vol 8 (2) ◽  
pp. 101
Author(s):  
Brage H Amundsen ◽  
Anders Thorstensen ◽  
Asbjørn Støylen ◽  
◽  
◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Magnetic Resonance ◽  
Late Enhancement ◽  
High Temporal Resolution ◽  
Resonance Imaging ◽  
Deformation Imaging ◽  
Artery Disease ◽  
Deformation Measurements

The aim of this article is to discuss the present and future potential of deformation imaging by echocardiography and scar visualisation by magnetic resonance imaging (MRI) in patients with coronary artery disease (CAD). The two methods are clearly different: one is concerned with function, the other with morphology. Echocardiography, with its versatility of methods and high applicability, will continue to be the workhorse in cardiac imaging of patients with CAD. Important additional information can be extracted from deformation imaging methods, especially due to the high temporal resolution in tissue Doppler. Deformation measurements in 3D images are still limited by their lower resolution compared with 2D but will continue to improve. The standardisation of image analysis and the collaboration within the echocardiographic community to conduct larger studies will be important tasks in the attempt to establish evidence for the new methods. Late enhancement MRI is a method with unique properties and will continue to be an important alternative in selected patients and settings, as well as an invaluable research tool.

An Optoelectronic System for Real-Time Surface Deformation Measurements

Vestnik MEI ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 101-108
Author(s):  
Anton Yu. Poroykov ◽  
◽  
Konstantin M. Lapitskiy ◽  
Keyword(s):  
Real Time ◽  
Surface Deformation ◽  
Optoelectronic System ◽  
Deformation Measurements

Stepped Sine and Multisine Signal Excitation for Identification in a Small AMB Test Rig

2017 ◽  
Author(s):  
Fernando Augusto de Noronha Castro Pinto ◽  
Thiago Ritto ◽  
David Julian Gonzalez Maldonado ◽  
Diego Alejandro Godoy Diaz
Keyword(s):  
Test Rig

DESIGN OF RUBBER FATIGUE BEHAVIOUR TEST RIG

2013 ◽  
Vol 41 (2) ◽  
pp. 501-516
Author(s):  
Abdullah Mohammed ◽  
Karam M. Emara ◽  
Mahmoud M. Nemat-Alla
Keyword(s):  
Fatigue Behaviour ◽  
Test Rig

scholarly journals In-process deformation measurements of translucent high speed fibre-reinforced disc rotors

2015 ◽  
Author(s):  
Katrin Philipp ◽  
Angelos Filippatos ◽  
Nektarios Koukourakis ◽  
Robert Kuschmierz ◽  
Christoph Leithold ◽  
...  
Keyword(s):  
High Speed ◽  
Deformation Measurements

Experimental investigation on time-domain features in the diagnosis of rolling element bearings by acoustic emission

2021 ◽  
pp. 107754632110161
Author(s):  
Aref Aasi ◽  
Ramtin Tabatabaei ◽  
Erfan Aasi ◽  
Seyed Mohammad Jafari
Keyword(s):  
Acoustic Emission ◽  
Condition Monitoring ◽  
Time Domain ◽  
Central Moment ◽  
Rolling Element Bearings ◽  
Test Rig ◽  
Acoustic Emission Sensor ◽  
Outer Race ◽  
Common Time ◽  
Rolling Element

Inspired by previous achievements, different time-domain features for diagnosis of rolling element bearings are investigated in this study. An experimental test rig is prepared for condition monitoring of angular contact bearing by using an acoustic emission sensor for this purpose. The acoustic emission signals are acquired from defective bearing, and the sensor takes signals from defects on the inner or outer race of the bearing. By studying the literature works, different domains of features are classified, and the most common time-domain features are selected for condition monitoring. The considered features are calculated for obtained signals with different loadings, speeds, and sizes of defects on the inner and outer race of the bearing. Our results indicate that the clearance, sixth central moment, impulse, kurtosis, and crest factors are appropriate features for diagnosis purposes. Moreover, our results show that the clearance factor for small defects and sixth central moment for large defects are promising for defect diagnosis on rolling element bearings.

Sign in / Sign up

Export Citation Format

Share Document