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Out-of-plane elastic buckling of truss beams
Fedoroff, Alexis,Kouhia, Reijo Techno-Press 2013 Structural Engineering and Mechanics, An Int'l Jou Vol.45 No.5
In this article we will present a method to directly evaluate the critical point of a non-linear system by using the solution of a polynomial eigenvalue approximation as a starting point for an iterative non-linear system solver. This method will be used to evaluate out-of-plane buckling properties of truss structures for which the lateral displacement of the upper chord has been prevented. The aim is to assess for a number of example structures whether or not the linearized eigenvalue solution gives a relevant starting point for an iterative non-linear system solver in order to find the minimum positive critical load.
Out-of-plane elastic buckling of truss beams
Alexis Fedoroff,Reijo Kouhia 국제구조공학회 2013 Structural Engineering and Mechanics, An Int'l Jou Vol.45 No.5
In this article we will present a method to directly evaluate the critical point of a non-linear system by using the solution of a polynomial eigenvalue approximation as a starting point for an iterative non-linear system solver. This method will be used to evaluate out-of-plane buckling properties of truss structures for which the lateral displacement of the upper chord has been prevented. The aim is to assess for a number of example structures whether or not the linearized eigenvalue solution gives a relevant starting point for an iterative non-linear system solver in order to find the minimum positive critical load.
Contribution of Maxwell Stress in Air on the Deformations of Induction Machines
Fonteyn, K.A.,Belahcen, A.,Rasilo, P.,Kouhia, R.,Arkkio, A. The Korean Institute of Electrical Engineers 2012 Journal of Electrical Engineering & Technology Vol.7 No.3
Deformations in a cage-induction machine are investigated with simulations. The contribution of the Maxwell stress in the air gap and coil regions of the machine on the deformation is studied by comparing results obtained with and without inclusion of the stress into the calculation. The work attests the acceptability of an energy-based magneto-mechanical model for a 2D mesh of two different rotating electrical machines.
Contribution of Maxwell Stress in Air on the Deformations of Induction Machines
K. A. Fonteyn,A. Belahcen,P. Rasilo,R. Kouhia,A. Arkkio 대한전기학회 2012 Journal of Electrical Engineering & Technology Vol.7 No.3
Deformations in a cage-induction machine are investigated with simulations. The contribution of the Maxwell stress in the air gap and coil regions of the machine on the deformation is studied by comparing results obtained with and without inclusion of the stress into the calculation. The work attests the acceptability of an energy-based magneto-mechanical model for a 2D mesh of two different rotating electrical machines.