Computational Technology Resources - CCP

Keywords: passenger train, high speed, NGT, DLR, lightweight design, methodical approach, train concepts, car body, topology optimisation.

Summary

Lightweight design has an important role for rail vehicles. To achieve a significant mass reduction, the consistent usage of all lightweight design strategies is necessary. For this reason, an innovative method has been developed at the Institute of Vehicle Concepts at the German Aerospace Center (DLR), supported by Bombardier Transportation; this method follows an integral lightweight design approach. By using this methodical procedure, the mass of car bodies and train concepts can be estimated without defining the design. In this way it is possible to compare different train and car concepts in relation to their lightweight design potential in an early phase. The car and train concept with the greatest lightweight design potential defines the global dimensions of the related car body shell. The car body shell is subjected to topology optimisation using the loads of relevance for the design. The resulting load-bearing structure comprises load paths adapted to the force flows. These load paths form the basis for an innovative mass-optimised, modular car body design. The highly loaded car body segment over the running gear is explicitly designed. It is dimensioned by ideally adapting the wall thickness of the structural elements to the loads. The structural behaviour of the design is verified using a real demonstrator.

purchase the full-text of this paper (price £20)

go to the previous paper
go to the next paper
return to the table of contents
return to the book description
purchase this book (price £65 +P&P)

	Computational & Technology Resources an online resource for computational, engineering & technology publications
	not logged in - login
Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 250 Novel Lightweight Construction Concepts and Methods for Car Bodies J. Koenig¹, H.E. Friedrich¹, J. Winter¹ and M. Schoen² ¹Institute of Vehicle Concepts, Deutsches Zentrum für Luft- und Raumfahrt, German Aerospace Center (DLR), Stuttgart, Germany ²Division Mainline and Metros, Bombardier Transportation, Hennigsdorf, Germany doi:10.4203/ccp.104.250 purchase the full-text of this paper Full Bibliographic Reference for this paper J. Koenig, H.E. Friedrich, J. Winter, M. Schoen, "Novel Lightweight Construction Concepts and Methods for Car Bodies", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 250, 2014. doi:10.4203/ccp.104.250 Keywords: passenger train, high speed, NGT, DLR, lightweight design, methodical approach, train concepts, car body, topology optimisation. Summary Lightweight design has an important role for rail vehicles. To achieve a significant mass reduction, the consistent usage of all lightweight design strategies is necessary. For this reason, an innovative method has been developed at the Institute of Vehicle Concepts at the German Aerospace Center (DLR), supported by Bombardier Transportation; this method follows an integral lightweight design approach. By using this methodical procedure, the mass of car bodies and train concepts can be estimated without defining the design. In this way it is possible to compare different train and car concepts in relation to their lightweight design potential in an early phase. The car and train concept with the greatest lightweight design potential defines the global dimensions of the related car body shell. The car body shell is subjected to topology optimisation using the loads of relevance for the design. The resulting load-bearing structure comprises load paths adapted to the force flows. These load paths form the basis for an innovative mass-optimised, modular car body design. The highly loaded car body segment over the running gear is explicitly designed. It is dimensioned by ideally adapting the wall thickness of the structural elements to the loads. The structural behaviour of the design is verified using a real demonstrator. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
Back to top	©Civil-Comp Limited 2023 - terms & conditions