Different scaling/normalization of modal shapes

- July 20, 2020 at 11:08 am
  
  KristofVC
  Subscriber
  
  Hi all,
  
  For my master's thesis, I am performing a modal analysis of a steel plate structure. When reviewing the resulting mode shapes, there are significant differences in the magnitude of the local vibrations of some, less accurately modelled, free edges of the plate structure. My professor told me that I should change the scaling method to check whether the global deformations are at all significant compared to the local ones.
  
  My question then is: how do I change the scaling method in Ansys Workbench? I know there are a couple of ways to normalize results (mass matrix, unity, if I forget another feel free to let me know). I have found some sources which suggest adding in commands in apdl, but I am not at all familiar with these, and have so far not managed to correctly write a command in the solution subsection of Workbench to change the results of my analysis.
  
  Thanks!
- April 29, 2021 at 10:35 pm
  
  NadjouaB
  Subscriber
  
  Array
  Hello, I hope that you could find answers to your question !
  I was searching on how to get results with a normalized distance and I found your post, if you have an idea on how to do it please help me.
  Thank you,
- April 30, 2021 at 1:38 am
  
  peteroznewman
  Subscriber
  
  Array
  Read this discussion: /forum/discussion/2569/comparing-stresses-from-modal-analysis-and-static-analysis
- April 30, 2021 at 8:30 pm
  
  NadjouaB
  Subscriber
  
  Array Thank you sir, I did check it and it wasn't helpful unfortunately.
  What I want to know is just what are the steps to follow to get normalized result in static structural.
  
  In abaqus in order to create a plot, you would choose tools then XY Data then select the path and we click to create a plot, then we select what value we want in the X axis and choose normalized distance and this way I would get the normalized distance in the X axis. How can I do the same thing in ansys ?
  
  I really need help, thank you sir.
- April 30, 2021 at 10:13 pm
  
  peteroznewman
  Subscriber
  
  Array
  The title of this discussion is "Different scaling/normalization of modal shapes"
  I linked to a discussion that answers this exact question.
  You didn't find the link helpful because you are asking a different question than the title of this discussion. If you have a different question, ask it in a different discussion. Your post in this discussion is just going to confuse other members who are looking for information related to the title of this discussion.