Calculating Spring Stiffness for Bolts

[aok47]

hi,

i wanted to use DOF Springs in Nastran for Windows and was wondering what sort of methods people use to caluclate the stiffness values for the springs.

i have heard reference to a Vlieger-Broek method (?) but unable to find anything on the web.

appreciate your help

Angelo K.

 

[idly123]

hi,
see the following link

http://www.engr.ukans.edu/~rhale/ae508/linesum/sld006.htm

hope it helps
regds Raj