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MCCT LABORATORY

Mechanical and Climatic Calibration and Testing Laboratory

NATIONAL PROGRAM 2

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PROJECT PRESENTATION

          Domain

          4.1 - Eco-nano-tehnologii

Abstract

The international norms require that during the railway vehicles homologation, they are subject to complex procedures for validating the structural strength to fatigue and extreme loads. Bogie frames presents a particular situation because their validation at fatigue by tests requires a laboratory with a significant number of equipment, capable of reproducing the dynamic cycles and a long time testing (4-6 months). Given the financial implications and the long time testing, the standards admit that tests for fatigue validation can be replaced by other methods that demonstrate the strength to fatigue, among them, the analytical method playing an important role, only if the analytical model to be correct realized and calibrated by tests. 
For Softronic, which is the locomotives manufacturer, critical are the following problems: 
- Validation to the static loads and fatigue strength of bogie frames for locomotives that are already in circulation, and for those who will equip the new types of locomotive;
- Validation to the mechanical strength of the control and board equipment, in accordance with international norms and vibration state at the mounting place. 
Project objectives: 
- Validation of some combined technologies, analytical and experimental of low energy intensity, for assessment of the fatigue strength and exceptional loads of the strength structures of railway vehicles, with orientation towards the validation of bogie frames; 
- Validation of some technologies for assessment of the vibratory loads on the mounting place of the main board and control equipment and checking their mechanical strength, according to the standards and real vibration conditions at the mounting place; 
- Assimilation of technologies realized through the project by the industrial partner and their introduction in the design and manufacturing of new railway vehicles.

The objective of the project

-Realization and validating of some combined, analytical and experimental, technologies for assessment at fatigue and exceptional loads of railway vehicles strength structure, with priority orientation towards the bogie frames validation; 
-Realization and validating of some technologies for assessment of real vibratory loads, at the mounting site of the main board and control equipment and checking their mechanical endurance, in accordance with international norms and the real loads at the functional site; 
-Assimilation of achieved technologies through the project by the industrial partner and their introduction in the design and manufacturing of new rail vehicles; 
-Development of a sustainable partnership between a company, Softronic Craiova, a research institute, INMA Bucharest and a prestigious university, University POLITEHNICA of Bucharest - Faculty of Transports.

Estimated results

A. Combined, analytical and experimental, technology for assessment at fatigue and exceptional loads of the railway vehicles strength structure, with priority orientation towards to the bogie frames validation. 
The technology includes: 
-The measurement equipment and software for determination of the real mechanical stress (vibrations, stresses, strains) to which is subjected the strength structure of the rail vehicles under real railway traffic; 
-Software package of analysis with finite elements for fatigue and dynamic loads analysis of railway vehicle strength structures, centered on ANSYS Mechanical and ANSYS nCode DesignLife. 
-Certified laboratory for testing and calibration in domain of main parameters related to the project (forces, pressures, vibrations); 
-Procedure for collecting the experimental data; for determination of the loads duration and average values of stresses as well as of the stress-number of cycles curves. 
-Procedure for analytical assessment of fatigue and exceptional loads resistance of strength structure of rail vehicles. 
B. Technology for assessment of the vibratory loads, at the mounting place of the main board and control equipment, and for checking these to enduring mechanical stresses, in accordance with international norms and the real loads at the mounting place. 
Loads assessment at the mounting place will be done with equipment and software that already exists at coordinating partner and will be completed during the project.  The tests to enduring mechanical stresses will be done with electrodynamics shaker of about 11kN, purchased during the project, which will be used to induce the local dynamic stresses in the technologie at the point A. 
C. Two scientific articles published at ISI conferences.

Consortium
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PROJECT TEAM
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DISEMINATION

BOOKS

1. Manea I., Sebeșan I., Ghiță Gh. - „Analiza modală teoretică și experimentală. Aplicații la vehicule feroviare” , Editura MatrixRom, ISBN 978-606-25-0292-8, 2016, 238 p.

2. Sebeșan I., Crăciun C., Sebeșan M.S. - „Analiza și modele de calcul ale sistemelor de izolare a șocurilor și vibrațiilor la vehiculele feroviare”, Editura MatrixRom, ISBN 978-606-25-0298-0, 2016, 410 p.

 

Articole ştiinţifice publicate în reviste indexate BDI

1. Cristina Tudorache, Ioan Sebeşan, A three-dimensional analysis of the wheel - railway contact in case of a charge transfer, Mathematical Modelling in Civil Engineering. No.1, March, 2015, pp. 42-49.

http://www.degruyter.com/view/j/mmce.2015.11.issue-1/mmce-2015-0003/mmce-2015-0003.xml 

Revistă indexată BDI (ProQuest, Ebsco)

Scientific articles published in BDI indexed proceedings

1. Ioan Sebeşan, Sorin Arsene, Gabriel Popa, The influence of air currents on people and facilities near railway, Procedia - Social and Behavioral Sciences, Vol. 186, 2015, The Proceedings of 5th World Conference on Learning, Teaching and Educational Leadership, pp. 1081-1086.

http://www.sciencedirect.com/science/journal/18770428/186 

2. Ioan Sebeşan, Sorin Arsene, Considerations on dynamic contact force with catenary for the EP3 pantograph, Applied Mechanics and Materials Vols. 809-810, 2015, Volume Innovative Manufacturing Engineering, pp 1121-1126, ISSN 1662-7482, Trans Tech Publications, Switzerland, ISSN print 1660-9336 ISSN cd 1660-9336 ISSN web 1662-7482, ISBN 978-3-03835-275-4. 

Journal indexat Elsevier: SCOPUS and Ei Compendex (CPX), Cambridge Scientific Abstracts (CSA), Chemical Abstracts (CA), Google and Google Scholar, ISI (ISTP, CPCI, Web of Science), Institution of Electrical Engineers (IEE).

3. Sorin Arsene, Ioan Sebeşan, Gabriel Popa, Static analysis on computer for requests that appear at elements of the pantograph of type EP3, Applied Mechanics and Materials Vols. 809-810, 2015, Volume Innovative Manufacturing Engineering, pp 1109-1114, ISSN 1662-7482, Trans Tech Publications, Switzerland, ISSN print 1660-9336 ISSN cd 1660-9336 ISSN web 1662-7482, ISBN 978-3-03835-275-4. 

Journal indexat Elsevier: SCOPUS and Ei Compendex (CPX), Cambridge Scientific Abstracts (CSA), Chemical Abstracts (CA), Google and Google Scholar, ISI (ISTP, CPCI, Web of Science), Institution of Electrical Engineers (IEE).

 

4. Cristina Mihaela Tudorache, Ioan Sebeşan, A method of analyzing the contact between the wheel and the railway, Applied Mechanics and Materials Vols. 809-810, 2015, Volume Innovative Manufacturing Engineering, pp 1109-1114, ISSN 1662-7482, Trans Tech

Publications, Switzerland, ISSN print 1660-9336 ISSN cd 1660-9336 ISSN web 1662-7482, ISBN 978-3-03835-275-4. 

Journal indexat Elsevier: SCOPUS and Ei Compendex (CPX), Cambridge Scientific Abstracts (CSA), Chemical Abstracts (CA), Google and Google Scholar, ISI (ISTP, CPCI, Web of Science), Institution of Electrical Engineers (IEE).

5. Gabriel Popa, Ioan Sebeşan, Sorin Arsene, Răzvan Oprea, Claudiu Nicolae Badea, Optimizing power consumption of the electric vehicle traction, Applied Mechanics and Materials Vols. 809-810, 2015, Volume Innovative Manufacturing Engineering, pp 1103-1108, ISSN 1662-7482, Trans Tech Publications, Switzerland, ISSN print 1660-9336 ISSN cd 1660-9336 ISSN web 1662-7482, ISBN 978-3-03835-275-4. 

Journal indexat Elsevier: SCOPUS and Ei Compendex (CPX), Cambridge Scientific Abstracts (CSA), Chemical Abstracts (CA), Google and Google Scholar, ISI (ISTP, CPCI, Web of Science), Institution of Electrical Engineers (IEE).

6.   Manea Ion, Popa Gabriel, Gîrniță Ion, Prența Gabriel,Design and structural verification of locomotive bogies using combined analytical and experimental methods, IOP Conference Series: Materials Science and Engineering 95 (2015) 012034, Mamaia 17-20 June 2015.

SCIENTIFIC REPORT NP2

Scientific Reporting-Stage-01-PCCA-192_2012

Scientific Reporting-Stage-02-PCCA-192_2013

Scientific Reporting-Stage-03-PCCA-192_2014

Scientific Reporting-Stage-04-PCCA-192_2015

Scientific Reporting-Stage-05-PCCA-192_2016

Scientific Reporting-Final-PCCA-192_2012-2016