Determining Dynamic Characteristics of Bellows by Manipulated Beam Finite Elements of Commercial Software
|Document type:||Journal Articles|
|Article type:||Original article|
|Author(s):||Göran Broman, Anders Jönsson, Madeleine Hermann|
|Title:||Determining Dynamic Characteristics of Bellows by Manipulated Beam Finite Elements of Commercial Software|
|Journal:||International Journal of Pressure Vessels and Piping|
|Organization:||Blekinge Institute of Technology|
|Department:||Dept. of Mechanical Engineering (Institutionen för maskinteknik)
Dept. of Mechanical Engineering S-371 79 Karlskrona
+46 455 780 00
|Abstract:||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.
|Subject:||Mechanical Engineering\Structural Dynamics
Mechanical Engineering\Structural Mechanics
|Keywords:||Bellows, Dynamic, Beam Model, Finite Element Method.|