In this thesis, several mathematical models of concentrated parameters of bearing dynamics are presented, using several techniques: from Newton's or Lagrange's equations.

 

Once the parameters of the different models have been particularized to a real bearing, their behavior is simulated for certain operating conditions, characterizing the behavior of these models.

 

This thesis also presents a test bench for experimental testing of bearings that allows the possibility of changing the rotational speed as well as achieving variable axial or radial loads.

 

In the aforementioned test bench, reference physical bearings are tested for the same operating conditions in which the models were simulated and their vibration behavior is characterized in order to subsequently verify the similarity with the behavior of the models presented.

 

A mathematical model of distributed parameters of the thermal evolution of a bearing in time is also designed and characterized. This model is experimentally characterized on the test bench where, simultaneously, a study of the evolution of vibrations over time is carried out.