Nodal diameter, harmonic index and mode

  • Last Post 3 weeks ago
Sheida posted this 19 January 2018


I have an impeller with 6 main blades and 6 splitter blades. I want to have modal analysis including the nodal diameter (for SAFE diagram) and frequency. Is there any way that I can have nodal diameters in a table?

I expected to have maximum up to 3 nodal diameters and 3 harmonic indices. When it's selected to find 100 modes or 200 modes, at the end it displayed 2 harmonic indices. How can I have all harmonic indices as output results? Thanks.




yousefmech posted this 3 weeks ago

Hi Sheida 

you can select the number of desired modes but normally modes of interest are the blades bending modes