MisalignmentFlex and MisalignmentRigid do not run for rotors with less than 2 disks

[rodrigomoliveira1]

I was running some examples with these classes to get familiar with them, and when I tried running them using a rotor model with a single or no disk, it returned an error:

Traceback (most recent call last):

  File "<ipython-input-2-37037196aef6>", line 4, in <module>
    response = misalignment_flex_parallel_example()

  File "ross\defects\misalignment.py", line 962, in misalignment_flex_parallel_example
    misalignment = rotor.run_misalignment(

  File "ross\rotor_assembly.py", line 2589, in run_misalignment
    defect.run(self)

  File "ross\defects\misalignment.py", line 152, in run
    self.ndofd1 = (self.rotor.disk_elements[0].n) * 6

IndexError: list index out of range

Taking a closer look at .run() function, I noticed these 2 attributes:

        self.ndofd1 = (self.rotor.disk_elements[0].n) * 6
        self.ndofd2 = (self.rotor.disk_elements[1].n) * 6

It requires at least 2 disks in the rotor model.

So, I would just like to clarify if these analyzes deal with misalignment between 2 disks only or it's possible to analyze other scenarios, like no disks or multiple disk, etc.

@verg1lio, @bela-bs, @marcusfilipesr.

[bela-bs]

Hello Rodrigo, the way the programming was done, yes. We will have to modify some parameters in the code to improve it for arbitrary tests. We'll do that tomorrow.