HEAT TRANSMISSION WITH 1D ELEMENTS

DavidSol
DavidSol Altair Community Member
edited October 2020 in Community Q&A

Hello, excuse for interrupting.

 

Because I don't want to mesh a bearing, I am modelling it by the following three steps:

 

  1.  Merge the contact Surface of the bearing and the housing, to a MPC.
  2.  Merge this MPC to another MPC by a CBUSH. This let me to introduce the bearing's stiffness.
  3.  Merge the second MPC to the contact Surface between the bearing and the rotational axis.

 

This way to modelling a bearing it's Good for modal Analysis, but now, I want to know the influence of thermal expansion. There is a flux applicated in the axis and there is convection in the housing. The problem is there is no heat conduction from the axis to the housing, so the axis reaches very high temepratures, because it doesn't evacuate the heat.

So I need a way to transmit the heat from the axis to the housing. Perhaps, exists 1D elemente that can conduct heat without introduce any stiffness.

 

The case could be represented as in the photo.

<?xml version="1.0" encoding="UTF-8"?>modelling a bearing.jpg

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