Validation Testing of Heavy Duty Oil Bath Seals - Data Acquisition and Simulation of Seal Motions

Paper #:
  • 920712

Published:
  • 1992-02-01
Citation:
Neugebauer, J., Bloxsom, K., Diehr, J., and Pahios, M., "Validation Testing of Heavy Duty Oil Bath Seals - Data Acquisition and Simulation of Seal Motions," SAE Technical Paper 920712, 1992, https://doi.org/10.4271/920712.
Pages:
11
Abstract:
To advance the present state-of-the-art of testing oil lubricated truck wheel hub seals (hereafter referred to as oil bath seals) from fairly simple tests which allow static offset in the radial direction towards real-time road simulation, an investigative test development project was initiated. Combining the know-how and resources of manufacturers of oil bath seals and servohydraulic test equipment, a more realistic approach to seal testing was to be developed. Of importance to the project was the successful development of a five degree of freedom motion transducer used to measure the relative motion of the hub vs. the spindle in the seal location.Conducting extensive proving ground measurements and analyzing the data allowed the generation of a test sequence typical for the seal application. A special computer controlled servohydraulic test machine was designed and built which is capable of real-time simulation of the five degrees of motion acquired on the road.A validation test program was started comparing different seal designs in terms of their longevity.
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