Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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Structural Safety and Critical Speed Analysis of 2-Speed Shift Reducer

2속 변속 감속기의 구조 안전성 분석과 위험속도 해석

  • Received : 2022.06.17
  • Accepted : 2022.11.24
  • Published : 2022.12.01
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Abstract

The structure and operating principle of the 2-speed shift reducer were explained, the allowable bending stress value of the material was compared with the analysis result through FM structural analysis program, and the average stress distribution value of von Mises was performed on the gear root atmosphere. The structural safety of the 2-speed planetary gear reducer was verified through FM structural analysis. The natural frequency was calculated by applying the specifications of the planetary gears of the 2-speed gearbox, and the critical speed of resonance was calculated by calculating the natural frequency and the transmission error of the engaged gear pair. As a result of analyzing the critical speed, since it is formed higher than the actual operating speed range, it is considered safe because there is no resonance problem due to the suggested specifications of the planetary gears of the 2-speed shift reduction.

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Acknowledgement

본 연구는 중소벤처기업진흥공단, 창업 전략형 지원 사업 지원과제(과제번호: S2963106, 과제명: 2속 자동 변속 기능이 가능한 스마트형 유압식 감속시스템 모듈 개발)와 관련하여 작성되었음.

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