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BETA
Hermann, Madeleine
Publications (3 of 3) Show all publications
Broman, G., Jönsson, A. & Hermann, M. (2000). Determining Dynamic Characteristics of Bellows by Manipulated Beam Finite Elements of Commercial Software. International Journal of Pressure Vessels and Piping, 77(8), 445-453
Open this publication in new window or tab >>Determining Dynamic Characteristics of Bellows by Manipulated Beam Finite Elements of Commercial Software
2000 (English)In: International Journal of Pressure Vessels and Piping, ISSN 0308-0161, E-ISSN 1879-3541, Vol. 77, no 8, p. 445-453Article in journal (Refereed) Published
Abstract [en]

A procedure for determining dynamic characteristics of bellows by manipulating certain parameters of the beam finite elements of I-DEAS Master Series 6 is presented. The method will work in any software in which these parameters can be set by the user. Compared to a shell elements model the model size is reduced by at least a factor of 100. This is especially advantageous when the bellows is only a part of a system to be optimised with respect to overall design parameters. Stress in the bellows cannot be predicted by this method, but when the dynamic behaviour is known it can be used as input for stress calculations, if desired. In contrast to existing "semi-analytical" methods this method has the potential of considering axial, bending and torsion degrees of freedom simultaneously, and it facilitates the interaction between the bellows and the rest of the system, also modelled by beam or shell finite elements. The procedure is verified by experimental results from other investigators.

Place, publisher, year, edition, pages
Oxford: Elsevier Science, 2000
Keywords
Bellows, Dynamic, Beam Model, Finite Element Method.
National Category
Applied Mechanics
Identifiers
urn:nbn:se:bth-9533 (URN)000165264100002 ()oai:bth.se:forskinfoCD87BB7B5F6B6CD3C1256937002C7D79 (Local ID)oai:bth.se:forskinfoCD87BB7B5F6B6CD3C1256937002C7D79 (Archive number)oai:bth.se:forskinfoCD87BB7B5F6B6CD3C1256937002C7D79 (OAI)
Available from: 2012-09-18 Created: 2000-08-10 Last updated: 2017-12-04Bibliographically approved
Broman, G., Hermann, M. & Jönsson, A. (2000). Modelling Bellows Expansion Joints by Standard Beam Finite Elements. Paper presented at ASME Pressure Vessels and Piping Conference 2000. Paper presented at ASME Pressure Vessels and Piping Conference 2000. Seattle: ASME
Open this publication in new window or tab >>Modelling Bellows Expansion Joints by Standard Beam Finite Elements
2000 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]

A procedure for modelling bellows expansion joints by the standard beam finite elements of I-DEAS Master Series 6 is presented. It is shown that the bellows dynamic behaviour can be modelled by beam elements by manipulating certain element parameters. The method will work in any software in which these parameters can be set by the user. Compared to a shell elements model the model size is reduced by at least a factor of 100. This is especially advantageous when the bellows is only a part of a system to be optimised with respect to overall design parameters. In comparison to existing "semi-analytical" methods the beam finite elements have the advantages of considering axial, bending and torsion degrees of freedom simultaneously and that the interaction between the bellows and the rest of the system, also modelled by beam or shell finite elements, is easily facilitated. The procedure is verified by experimental results from other investigators.

Place, publisher, year, edition, pages
Seattle: ASME, 2000
Keywords
Bellows, Dynamic, Beam Model, Finite Element Method.
National Category
Applied Mechanics
Identifiers
urn:nbn:se:bth-10136 (URN)oai:bth.se:forskinfo37585533F16CC413C12569370032E807 (Local ID)oai:bth.se:forskinfo37585533F16CC413C12569370032E807 (Archive number)oai:bth.se:forskinfo37585533F16CC413C12569370032E807 (OAI)
Conference
ASME Pressure Vessels and Piping Conference 2000
Available from: 2012-09-18 Created: 2000-08-10 Last updated: 2015-06-30Bibliographically approved
Broman, G., Hermann, M. & Jönsson, A. (1999). Modelling Flexible Bellows by Standard Beam Finite Elements.
Open this publication in new window or tab >>Modelling Flexible Bellows by Standard Beam Finite Elements
1999 (English)Report (Other academic)
Abstract [en]

A procedure for modelling flexible metal bellows by the standard beam finite elements in I-DEAS Master Series 6 is presented. In spite of the geometry of the bellows being far from a beam, it is shown that the bellows dynamic behaviour can be modelled by beam elements with the suggested procedure. The model size is reduced by a factor of 100-1000 compared to a shell elements model. This is especially advantageous when the bellows is only a part of for example an exhaust system to be optimised with respect to overall design parameters. In comparison to existing "semi-analytical" methods the standard beam finite elements have the advantages that axial, bending and torsion degrees of freedom are included simultaneously and that the interaction between the bellows and the rest of the system, also modelled by beam or shell finite elements, is easily facilitated. The procedure is verified by experimental results from other investigators.

Series
Blekinge Tekniska Högskola Forskningsrapport, ISSN 1103-1581 ; 12
Keywords
Flexible Bellows, Beam Finite Elements, Dynamic Behaviour, Axial, Bending, Torsion, Exhaust Systems, Experimental Verification.
National Category
Applied Mechanics
Identifiers
urn:nbn:se:bth-00130 (URN)oai:bth.se:forskinfo7164605D95599904C12568A3002CAC10 (Local ID)oai:bth.se:forskinfo7164605D95599904C12568A3002CAC10 (Archive number)oai:bth.se:forskinfo7164605D95599904C12568A3002CAC10 (OAI)
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Available from: 2012-09-18 Created: 2000-03-15 Last updated: 2016-09-08Bibliographically approved
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