• 제목/요약/키워드: 유성

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Focus - 개정되는 산업안전보건법과 산업재해 바로 알기

  • 이용국
    • 월간산업보건
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    • 통권380호
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    • pp.54-57
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    • 2019
  • 대한산업보건협회(이하 협회)는 사업장 관리감독자, 보건관리자 등 관리자들을 위해 집약된 내용으로 산업안전보건교육을 진행하고 있다. 지난 11월 29일, 대전 유성호텔에서 진행된 '개정되는 산업안전보건법과 산업재해 바로알기' 세미나 역시 이러한 협회의 노력 중 하나이다. 산안법 전부개정안의 본격 시행을 한 달여 앞으로 남겨둔 만큼, 세미나에는 빈자리를 찾아볼 수 없을 만큼 가득 찬 참가자의 열기로 뜨거웠다.

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형광체 응용기술 소개

  • 송영현;최승희;정호중;김완호;김재필;유성환;전시욱;권석빈;윤대호
    • 인포메이션 디스플레이
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    • 제23권4호
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    • pp.29-34
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    • 2022

복합유성기어의 강도 및 내구성 해석 (Strength and Durability Analysis of the Double Planetary Gears)

  • 한성길;신유인;윤찬헌;송철기
    • 한국기계가공학회지
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    • 제13권5호
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    • pp.28-34
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    • 2014
  • A planetary gear train is more compact and endures greater amounts of transmission power compared to other gear systems. Although planetary gear systems operate in small volumes, they are capable of very high efficiency due to the compact combination of their gears in the planetary gear system. They also have outstanding efficiency of only 3% for power transmission, tantamount to the power loss that occurs in each of the shift stages. Given these advantages, planetary gear systems are used in the driving systems of, which are widely used in automobile transmissions, machine tools, semiconductor equipment, and in other areas in industrial fields. Current structural equipment requires higher efficiency and greater torque levels. According to these needs, we have designed a complex planetary gear system which creates higher levels of torque. In this paper, an evaluation of strength designs for the proposed planetary gear system was conducted to ensure the stability of the gear. In addition, a durability analysis based on Miner's rule was performed using RS B 0095 device.

타워크레인 선회감속기용 유성기어 캐리어의 구조해석 (Structural analysis of a planetary gear carrier in the slewing reducer for tower crane)

  • 조승제;한정우;박영준;이근호
    • 한국기계가공학회지
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    • 제13권5호
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    • pp.1-7
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    • 2014
  • In this paper the structural analysis of a planet carrier was carried out for the design optimization of a slewing reducer used in tower cranes. The stress changes of the planet carrier according to the tolerance of interference fit were investigated, and the strength was evaluated on the basis of the stress level. The analysis results showed that the tolerance of interference fit have an important influence on the stress level of the planet carrier. To guarantee the static safety of carrier, the tolerances of carrier pinhole and planet pin as well as loading level exerted on the planet carrier should be determined considered correctly.