Learning Forum

[dineshadwani1451]

Hello there,

I have an assembly consisting of bolts which is vibrating due to its operational loading. I have to predict the loosening of bolts. I certainly know it can't be done directly in CAE but it can be interpreted using parameters like conatact pressure, bolt pre-tension, axial displacement, etc,. The question is what value of these parameters must be taken as a threshold that will signify the initiation of loosening. If anyone has done this before or has any research paper or any reference, please let me know.

Thanks 

Dinesh

[Ashish Khemka]

Hi Dinesh,

You can choose the parameters like - Contact pressure, contact gap, and Number of Contacting elements:

18.9.1. Structural Result Trackers

Regards,

Ashish Khemka