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Spring with pre load

Experimenter
Experimenter

It's possible to add a pre load in a spring element (like Celas2)?

3 REPLIES

Re: Spring with pre load

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Hello!,

The CELAS2 spring element do not support preload with NX NASTRAN BASIC Nonlinear Analysis (SOL106).

CELAS2-spring-element.png

But you always can preload a CROD element using an equivalent thermal load approach, or with NX NASTRAN ADVANCED NONLINEAR solver (SOL601) you can use a CBAR/CBEAM element that support directly BOLT PRELOAD.

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/

Re: Spring with pre load

Experimenter
Experimenter

Thanks for your answer.

Adding a bolt pre-load seems not to be what I'am looking for.

I want to join these two surfaces together and calculate the deformation.

I thought to add spings with 0 mm free length on the edges

Re: Spring with pre load

Siemens Phenom Siemens Phenom
Siemens Phenom

Preload can be defined on a CGAP element by specifying F0 on the PGAP card.