Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Heat Generation by Friction

Status
Not open for further replies.

ABQfm

Mechanical
Joined
Feb 27, 2009
Messages
9
Location
US
Hi
I am trying to predict heat generated by friction in rotary seals using Abaqus. I have already completed the analysis however I am not sure whether I did it correctly.
I have modeled coupled-temperature displacement steps for the analysis.In the first step I have the assembly of the seal that created the frictional forces at the shaft-seal contact interface. The shaft is modeled as a analytical rigid body.I am using the contact stress (CPRESS) at the slave nodes at the interface to calculate the heat flux by the formula: Co-efficient of friction*CPRESS at a node*rotational speed of the shaft.
In the second step (transient coupled temp-disp step), I created thermal loads as a concentrated heat flux at the nodes. Main purpose here is to predict the temperatures at the interface due to friction. I am getting the temperatures at the interface and distribution across the seal but I am not sure whether these are correct as I do not have any physical test data to compare my results.
Could some one tell me if I am doing this correctly?
 
I forgot to mention that I am assuming 30% of the calculated heat flux will go into the slave surface.
 
can you post your .inp file and i will take a look.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top