Torsional stiffness of solid shaft (angular disp. of solid elements)

hiranwale_bharat

Hello everyone,

 

I have a solid shaft to which I am applying torque and have to find the torsional stiffness of the same.

 

But I have read that we can not find out the angular deformation of solid elements. So how to measure it in optistruct? Or do I have to use the method of dividing the obtained displacement by radius?

 

Regards

Bharat Hiranwale

Altair Forum User

You can compute from nodal displacement by dividing by radius from reference point.

hiranwale_bharat

Altair Forum User said:

You can compute from nodal displacement by dividing by radius from reference point.

thank you for the reply.

tinh

Hi

another way is assign the shaft into a cylindrical system, so deform 'y' will be angle

Altair Forum User

Altair Forum User said:

Hi

another way is assign the shaft into a cylindrical system, so deform 'y' will be angle

 

Yeah, it's better way /emoticons/default_smile.png' alt=':)' srcset='/emoticons/smile@2x.png 2x' width='20' height='20'>

hiranwale_bharat

Altair Forum User said:

Hi

another way is assign the shaft into a cylindrical system, so deform 'y' will be angle

Hello tinh,

 

Thanks for the reply.

Can you please explain how can I define the cylindrical csys?

 

Regards,

Bharat

Altair Forum User

Hi,

 

Goto Anlaysis page>> Systems>>change system to Cylindrical from rectangular

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hiranwale_bharat

Thank you very much Prakash.

 

Regards,

Bharat