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스마트 시트벨트 시스템용 과하중 방지 클러치의 성능 해석
허욱(Heo Wook),김석현(Kim Seock-Hyun),박두연(Park Doo-Yeon),김정한(Kim Jung-Han),이연복(Lee Youn-Bok),김도식(Kim Do-Shik),최인수(Choi In-Su) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
In the motorized retractor of the smart seat belt system, anti-overload clutch is a very important element to prevent the excessive belt tensional force. Anti-overload clutch is the essential device to protect drivers from chest damage by the excessive belt tension. It generates slipping motion under excessive webbing moment and the belt tensional force is limited below critical value. In this study, slipping mechanism in the antioverload clutch is investigated by analysis and experiment. On the prototype model, finite element analysis is performed to identify the slipping condition and to determine the critical load. Analysis result is compared with the experimental result and the validity of the analysis model is verified. The purpose of the study is to provide the analytical background for the systematic design of the anti-overload clutch mechanism
박재순(Jae-soon Park),김일환(Il-Hwan Kim),탁태오(Tae-oh Tak),국민구(Min-gu Kuk),김대희(Dae-hee Kim),신승언(Seung-eon Shin),김정한(Jung-han Kim),이동섭(Dong-sub Lee),김승만(Seung-man Kim),김도식(Do-shik Kim),임경재(Kyung-jae Im) 대한기계학회 2006 대한기계학회 춘추학술대회 Vol.2006 No.6
Motorized retractors enhance the safety of passengers by removing the slack of webbing and by holding upright driving position. Reliability of a driving mechanism that includes one-way clutch between the driving motor and webbing is directly linked to the safety of passenger. In this research, conditions for locking one-way clutch and also conditions for sustaining locking are theoretically investigated. the operation of a motorized retractor under realistic conditions is simulated in order to validate the proposed retractor design.