Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Simulation Analysis on Static Safety of 55Hp-Servo-Based Hydrostatic Transmission

시뮬레이션 기반의 55마력급 서보식 정유압 무단변속기 정적구조안정성 분석

  • Won, Jonggeun (Department of Industrial Innovation Strategy Lab, Korea Construction Equipment Technology Institute) ;
  • Yoon, Jongil (Department of Industrial Innovation Strategy Lab, Korea Construction Equipment Technology Institute) ;
  • Lee, Hyunah (Department of Industrial Innovation Strategy Lab, Korea Construction Equipment Technology Institute) ;
  • Chung, Seonggyo (Department of Technical Research Center, J.I Hydraulic co., Ltd) ;
  • Jeong, Jaesu (Department of Technical Research Center, J.I Hydraulic co., Ltd)
  • Received : 2022.01.14
  • Accepted : 2022.02.07
  • Published : 2022.03.01
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Abstract

Hydrostatic transmission (HST) comprises rotary parts, shafts, valve plate, swashplate, and servo pistons. Ensuring structural stability of each part of an HST has a significant impact on product safety. In this study, the structural stability of HST in agricultural machinery and industrial vehicles was analyzed using ANSYS software. For conservative evaluation, high-pressure conditions (35.5 MPa and 2 MPa pilot pressure) were applied as load conditions. The number of grids used in the calculations ranged from 0.4 to 0.8 million depending on modeling requirements. Structural analysis was performed for essential parts and safety factor was analyzed. All major parts of HST had a safety factor of ≥ 1.5. Thus, they were judged to be structurally safe. This study provides important information for designing an HST system.

Keywords

Acknowledgement

이 연구는 중소벤처기업부와 중소기업기술정보진흥원이 지원하는 '구매조건부 신제품 개발사업(과제번호 : S2946317)'의 지원을 받아 연구되었음을 밝힙니다.

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