Plot Mode 2D

[hserdogan94]

I found out in the plot_mode_2d function, the mode shapes didn't show the negative displacements, it would be more clear if there is possibility to add it. If I am not mistaken.

Thank you again for the excellent software.

Best regards,

Hasan

[ViniciusTxc3]

Hi @hserdogan94, currently in the plot_mode_2d function the orientation in default is "major", where the orbit is considered positive. It is also possible to change this orientation to "x" or "y". This way it is possible to see the plot in other projections. I believe this can solve your case.

Example:

import ross as rs

rotor = rs.compressor_example()
rotor_speed = 1000.0 # rad/s
modal = rotor.run_modal(rotor_speed)
mode = 1
modal.plot_mode_2d(mode).show()
modal.plot_mode_2d(mode, orientation='x').show()
modal.plot_mode_3d(mode).show()

• plot_mode_2d: orientation='major'
  

• plot_mode_2d: orientation='x'
  

• plot_mode_3d
  

In future versions, we may change the plotting format to "major" to accommodate this visualization.