Nodal diameter, harmonic index and mode

  • Last Post 04 February 2018
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 04 February 2018

Hi Sheida 

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