Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Stick-Slip Pressure Variations in a Cylinder of Telescopic Boom

Telescopic Boom의 Stick-Slip에 의한 Cylinder의 압력변화

  • Kim, Shin (Graduate School, Chonbuk National University) ;
  • Lee, Hyung-Jik (R&D Institute, Soosan Special Purpose Vehicles Co., Ltd) ;
  • Jung, Jae-Youn (Faculty of Mechanical & Aerospace System Engineering and AHTRI Chonbuk National University)
  • 김신 (전북대학교 정밀기계공학과 대학원) ;
  • 이형직 ((주)수산특장 기술연구소) ;
  • 정재연 (전북대학교 공과대학 기계항공시스템공학부, 자동차신기술연구소)
  • Published : 2002.02.28
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Abstract

In many dynamic systems, there are unwanted oscillation which may arise the reduction of performance. Especially in low sliding speed condition, the stick-slip is an important issue because it because unstable motion as well as inaccurate position control in the system. Most previous works on the stick-slip are, however, only concerned with simple modeling under the condition of constant normal force. The normal force and the amount of hydraulic oil are variable with a cylinder stroke in the telescopic boom. This paper presents the pressure variations during stick-slip with the cylinder of telescope boom. Pressure variations by stick-slip has a similar pattern to that of single mass-spring model. The stick-slip is gradually decreased by means of increased flow rate.

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References

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