Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Dynamic Behaviour of a Radial Compliant Crank Mechanism Used in Scroll Compressor

스크롤 압축기에 적용된 가변반경 크랭크 기구의 동적 거동에 관한 연구

  • 김태종 (서울대 정밀기계설계공동연구소) ;
  • 한동철 (서울대 기계설계학과)
  • Published : 1996.06.01
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Abstract

Scroll compressor using a slide bushing type radial compliant crank mechanism is modelled, and it's dynamic behaviour characteristics are analyzed. Sealing forces generated in the flank surfaces of the orbiting scroll depending on the distance, e, from slide bushing center to crank pin center are calculated. From the stable condition of orbiting scroll for the moment equilibrium in tangential direction, the range of e is determined as 0$r_o$. Transient response of a crankshaft supported by two journal bearings is investigated, considering applied load, moment, and unbalance force by eccentric mass. As a result, conical whirl mode with circular orbits are obtained. The characteristics of journal orbits and frictional losses are calculated with a variation of viscosity and bearing clearance.

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References

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