Hi,

I would like determine the buckling load factor for telescopic hydraulic cylinder.The cylinder is 15 meters long in its extended condition and the diameter is around 175 mm.Do I need to do the non linear buckling analysis for these dimensions?. I have done the linear buckling analysis for this problem and the buckling factor i got is less than 1 whir i was not expecting from the analysis. If I run the same simulation setup with non linear analysis with arc length method (Nonlinear Buckling),I am getting load factor of 7. Now My question is which one to to be considered to determine the buckling load factor of this cylinder??.

EDITED BY MODERATOR: Please use a brief title related to your post, not "Hi". That way, users can tell the subject of your post from the listings instead of clicking into it. I have used your first sentence, which is appropriate.

SolidWorks Simulation should be able to calculate buckling in linear buckling mode when the column is Euler. shorter than Euler and you will get false results. Don't ask me how I know!

Nonlinear will provide better, more reliable results, and as I understand it, it helps to put an imperfection in the column, such as a small notch, to begin buckling earlier and get a more "real-world" result.

I'm sure you'll get some answers by others more well-versed in this.