Earticle

초록

영어

Experimental analysis has been carried out to investigate thermal characteristics of hydraulic system in special vehicles. Hydraulic system performance is largely influenced by oil temperature, and there are considerable performance decline and malfunctions in the system for high temperature conditions caused by heavy load and continuous operation. Transient oil temperature and pressure variation are analyzed and heat generation rates in the several main system parts are compared for various flow rates. With the start of system operation oil temperature gradually increases, and viscosity deceases by about 70% as temperature increases from 20℃ to 80℃. Operation pressure in the hydraulic system decreases with oil temperature, and its variation rate becomes less steep as oil temperature increases. Heat generation rate in hydraulic pump also depends on the oil temperature, and it reaches maximum near 50℃. These results in this study can be applied to optimal design of efficient hydraulic system in special vehicles.

목차

Abstract
 1. 서론
 2. 실험 장치구성 및 방법
  2.1 유압시스템 실험장치
  2.2 실험 방법
 3. 결과 및 고찰
  3.1 유압시스템 내의 오일온도 변화
  3.2 유압시스템 부품의 열발생량
  3.3 유량변화에 따른 오일변화
 4. 결론
 참고문헌

키워드

저자

• 최유현 [ Yu Hyun Choi | 원광대학교 기계자동차공학부 대학원 ]
• 이상호 [ Sang Ho Lee | 원광대학교 기계자동차공학부, 원광대학교 부설 공업기술개발연구소 연구위원 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620