topic Re: Local coordinate system in Robot Structural Analysis Forum

Local coordinate system

Anonymous — Tue, 22 Jan 2019 13:01:51 GMT

Hi,

Is it possible to rotate local coordinate system of a bar around the X axis, without rotating the bar itself ? Robot creates L-section profile with 45deg inclination. I want the LCS to be parallel to the L-section walls.

Re: Local coordinate system

Anonymous — Tue, 22 Jan 2019 15:55:51 GMT

If there is no such option, how can I get release on the bar on the direction of the L-section wall ?

Re: Local coordinate system

Artur.Kosakowski — Tue, 22 Jan 2019 15:59:45 GMT

Hi @Anonymous

There is no such option but in Robot there are two families of angles defined in the principal and parallel to the legs coordinate systems respectively. What you can do is to create a copy of the existing database with such sections and then edit the existing sections creating your own user section database instead.

If I managed to answer your question(s) press the Accept as Solution button please. This will help other users to find solution(s) much faster. Thank you.

Re: Local coordinate system

Anonymous — Wed, 23 Jan 2019 14:15:06 GMT

But how do I do it? There is no option in the profile design to rotate LCS. It gives me only characteristics of the profile with rotated LCS. I looked in other libraries, and I found L-sections with LCS that I'm looking for, however they are cold-rolled and I'm looking for hot-rolled profiles.

Re: Local coordinate system

Artur.Kosakowski — Wed, 23 Jan 2019 14:26:35 GMT

Hi @Anonymous

You can find them in almost all standard section databases e.g.:

Follow the steps described in this article.

If I managed to answer your question(s) press the Accept as Solution button please. This will help other users to find solution(s) much faster. Thank you.