Development of simplified safety assessment procedure for paratransit buses

Lesław Kwaśniewski , J. W. Wekezer , B. Gepner , J. Siervogel


This paper describes development of a simplified pr ocedure for the safety assessment of paratransit bu ses. The principal concept of the bus crashworthiness evaluation is adopted from the United Nations (UN), and ECE Regulation 66 [13]. The main objective of this study is to replace expensive and impractical full scale tests with a series of simple and well d efined experiments on structural components. The research methodology utilized for d evelopment of a new procedure is based on two track s of parallel research activities. The first research track consists of ex perimental tests conducted on three conceptual leve ls: material characterization, component testing, and full scale tests. The second track contains virtual testing representing the experiments. The virtual tests are performed using the nonlinear explicit dynamic code LS-DYNA® and well developed, verified and validate d Finite Element models. The numerical results are used for extensive parame tric studies and “what if” investigations. The FE m odels of the entire bus and its tested components are validated through comparison with the experimental data derived from several laboratory tests of the bus connections.
Author Lesław Kwaśniewski (FCE / IRB)
Lesław Kwaśniewski,,
- The Institute of Roads and Bridges
, J. W. Wekezer
J. W. Wekezer,,
, B. Gepner
B. Gepner,,
, J. Siervogel
J. Siervogel,,
Publication size in sheets0.3
Book Borkowski A., Lewiński Tomasz Denis, Dzierżanowski Grzegorz Michał (eds.): 19th International Conference on Computer Methods in Mechanics- CMM .Short papers + CD, 2011, Warsaw University of Technology Publ.House, ISBN 978-83-72070943-5, 540 p.
Keywords in English crashworthiness, impact, industrial problems , numerical analysis
Languageen angielski
061_f.pdf 2.12 MB
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061-1kwasniewski.pdf 231.22 KB
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