Learning Forum

[syed.ali]

Hi Support Team,

I hope you're doing well.

 

In Discovery homepage there is a model named "piston crank _static stress", I have tried to convert it into conjugate Thermal and static structural analysis.

On the top surfaces of the piston have been assigned 1500 centigrade boundary condition 

The resultant stresses are coming quite high(about 5960 MPa) in explore mode, at 100 centigrade it's about 314MPa.

 

Am I doing something wrong or am I missing something? Can you please assist me with this one?

If you have any case study/solved model for Conjugate thermal and static structural analysis, then please sent it to me.

 

Thanks,

Ali

[Charudatta Bandgar]

Hello Syed Saif Ali

Let me check this case, and try it on my end. I will also find if there is any case to share.

Regards.

[Charudatta Bandgar]

Hello  Syed Saif Ali

These seem to be same in the refine as well, and it is adding the thermal stresses to the mechanical stresses. Why do you think the result do not seem correct? 

In this case the pressure and thermal condition is added on the same faces, which could be one of the reasons for it to show higher values of the stresses. I will see if there is any case in discovery, if not we can try a case previously done in previous Discovery products.

Regards.

[syed.ali]

Hello Charudatta Bandgar ,

 

Actually I am preparing for a tutorials on discovery, So thought of involving Conjugate Structural and thermal Analysis. 

If I am not wrong then the combustion take place at about 1500 degree centigrade. If we go according to the analysis then it seems like the piston wouldn't be able to sustain it. Is that right?

 

If you have any other model for the conjugate analysis then please let me know.

 

Thanks,

Syed Saif Ali