Analysis of Piston Seal in High-Speed Pneumatic Cylinders

고속 공기압 실린더의 피스톤 실 특성 해석

  • 장중걸 (경일대학교 대학원 기계공학과) ;
  • 김도태 (경일대학교 기계자동차학부) ;
  • 한신식 (한국폴리텍VII대학 창원캠퍼스 자동차공학과)
  • Received : 2010.06.07
  • Published : 2010.06.18

Abstract

Nonlinear seal friction in pneumatic cylinders can impede the performance of pneumatic systems designed for high precision positioning with favorable high speed actuation. The behaviour of an elastomeric piston seal in high speed pneumatic cylinders is analysed by nonlinear finite element analysis using ABAQUS. The contact pressures, stress and strain distributions and frictional forces of the piston seal are simulated with variation of interference fits, supply pressures, friction coefficients and piston rod velocities. The nonlinear finite element model of the piston seal is used to predict deformation of a seal, friction force and contact pressure distributions.

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