Autodesk Robot Structural Analysis

[#1]

If possible please attach screen shot with your Modal analysis settings.

Maybe you use different  method or ...

[#2]

Dear Rafal

Attached is the screen shot with modal analysis parameters

Thanks alot

Refaat

[#3]

Thanks, developers are checking it.

[#4]

Dear Rafal

  I am still working  on the same model . But I couldn't  able to get participation (90%) when I used the fixed supports under columns & walls instead of the raft foundation with springs.

Pls, Could you help me to get (90%) ? , attached is my model with fixed supports .

http://www.2shared.com/file/l-2ZjR1X/Strucutral_meshed1_fixed_suppo.html

Thanks a lot

Refaat

[#5]

1. Selweigtht as mass for modal analysis duplicated in your model (1: from modal analysis settings, 2: load to mass conversion) 

2. Results for such settings:

[#6]

Different settings:

[#7]

Dear Rafal

Pls , Could you resend both of the screen shot , because they don't  appear on my computer.

Thanks a lot

Refaat

[#8]

Dear Rafal This duplicated (mass of self weight) can be happened only when I have fixed supports ? if your answer (No) , pls , can you show me how can I know there is any duplicated in my model ? Thanks a lot Refaat

[#9]

See below: