Brush seals are advanced seal widely used in aero-engines. The friction and wear characteristics of the brush seal have great influence on the performance and life of the brush seal. In this paper, the ball-disk friction and wear experiment has been proposed to measure the friction and wear properties of the brush seal material. It is noteworthy that the ball-disk friction and wear experiment could measure friction coefficient and wear factor accurately, only if the working conditions are reasonably set. The experimental results demonstrate that the temperature significantly affects the friction and wear properties of the brush seal, however, the load does not within a specific range. The ball-disk friction and wear experiment is a good choice for its lower cost, simpler system and acceptable accuracy. The experimental results provide important basic data for the rational selection of the candidate materials.

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An Experimental Method to Measure the Brush Seal Friction and Wear Properties

  • Jinjin Fan,
  • Qiang Wang,
  • Weicheng Qi,
  • Honghu Ji

摘要

Brush seals are advanced seal widely used in aero-engines. The friction and wear characteristics of the brush seal have great influence on the performance and life of the brush seal. In this paper, the ball-disk friction and wear experiment has been proposed to measure the friction and wear properties of the brush seal material. It is noteworthy that the ball-disk friction and wear experiment could measure friction coefficient and wear factor accurately, only if the working conditions are reasonably set. The experimental results demonstrate that the temperature significantly affects the friction and wear properties of the brush seal, however, the load does not within a specific range. The ball-disk friction and wear experiment is a good choice for its lower cost, simpler system and acceptable accuracy. The experimental results provide important basic data for the rational selection of the candidate materials.