“Experimental Investigation and Numerical Modelling of a Large Heavily-Loaded Tilting Pad Journal Bearing With Polymer Lined Pads”

Authors

  • Filippo Cangioli, Waukesha Bearings (Presenting Author)
  • Richard Livermore-Hardy, Waukesha Bearings
  • Guy Pethybridge, Waukesha Bearings
  • Uemit Mermertas, Siemens Gas and Power GmbH & Co. KG
  • Michael Stottrop, Ruhr-Universitat Bochum
  • Beate Bender, Ruhr-Universitat Bochum

Presentation Schedule

Session 25-01
Start time: September 22, 2020, 10:15 am

Abstract

A large tilting pad journal (TPJ) bearing with “PEEK” polymer-lined pads was tested over a range of operating conditions representative of those experienced on turbo-generators used in fossil fuel power plants. The 500 mm diameter test bearing has four offset pivot pads, ball and socket pivots, load between pivot configuration, ‘Directed Lubrication’ and hydrostatic jacking features. The operating conditions explored during the test campaign characterize the static and dynamic behavior of the bearing over a range of shaft surface speeds between 40 m/s and 95 m/s and maximum specific load of 4.75 MPa. Similar test conditions were previously investigated on the same bearing with whitemetal lined pads, allowing for a direct comparison.

A thermo-elasto-hydrodynamic (TEHD) model for TPJ bearings with polymer-lined pads is introduced in this paper and validated against experimental test data.

Experimental data along with numerical results reveal and confirm the superior performance that can be attained using TPJ bearings with polymer-lined pads at high specific loads.

Read more about the paper on the ASME Turbo Expo site

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