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Structural Analysis of Fan Section of Air Handling Unit KMW ZR 30 5/22
on Dynamic Load Defined by Seismic Spectrum OLKILUOTO 3

Fig. 2. Frame type parts

Fig. 3. Part assemblies

Screw connections between sheet metal parts were modelled using solid elements and
special kind of part contacts implemented in LS-DYNA by *CONTACT_SPOTWELD
command [3], Fig. 4.

Welded joints were modelled using a special type of LS-DYNA contact between parts by
*CONTACT_TIED_SHELL_EDGE_TO_SURFACE command [3], Fig. 5.

Both doors were fitted with rigid connections in places of three hinges and door locks by
*CONSTRAINED_NODAL_RIGID_BODY keyword [3], Fig 6.

University of Technology and Life Sciences
Faculty of Mechanical Engineering
Department of Computer Methods