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제품의 리스크 분석 기법에 관한 연구 : HuBRA 기법 개발 Development of HuBRA (Human Behavior Risk Analysis)
박경수,조일행,김운회 한국안전학회 2003 한국안전학회지 Vol.18 No.3
Since the introduction of The Product Liability Law, effective since July 2002, more and more companies and end-users have been giving their attention to the safety of products. A number of existing risk analysis techniques are being implemented to manufacturing sites. However, they have certain restrictions such as incurring different techniques that are to be implemented at each stage of the product development. This is due to their domain of the analysis differing from one to another. Moreover, the results of these analyses are not specific enough, and are subject to further revision. This study proceeds to look at various examinations undertaken on the existing risk analysis techniques. Through implementing them on certain products, investigations on the strengths and weaknesses were ascertained. This has allowed improvements on the existing techniques to be achieved as well as the development of a new risk analysis technique, 'HuBRA (Human Behavior Risk Analysis).' Finally the new technique was implemented on products to confirm its effectiveness.
박경수,조일행,고봉기 대한인간공학회 2002 대한인간공학회 학술대회논문집 Vol.- No.-
Since the introduction of The Product Liability Law, effective since July 2002, more and more companies and end-users are giving their attention to the safety of products. A number of existing risk analysis techniques are being implemented to manufacturing sites. However, they obtain certain restrictions such as incurring different techniques that are to be implemented at each stage of the product development. This is due to their domain of the analysis differing from one to another. Moreover, the results of these analyses are not specific enough, and are subject to further revision. This paper proceeds to look at various examinations undertaken on the existing risk analysis techniques. Through implementing them on certain products, investigations on the strengths and weaknesses were ascertained. This has allowed improvements on the existing techniques to be achieved as well as the development of a new risk analysis technique, "Human Oriented Risk Analysis."
VDT작업에서의 근골격계 질환 예방을 위한 새로운 팔 지지대 제안
박경수,김상수,조일행,홍기범,Park, Gyeong-Su,Kim, Sang-Su,Jo, Il-Haeng,Hong, Gi-Beom 대한인간공학회 2006 大韓人間工學會誌 Vol.25 No.2
In spite of the rapid increase of computer use in our everyday life, not much effort is undertaken to take measures to prevent Musculoskeletal Disorders(MSDs). In this paper, we suggest a movable armrest which would lower the exposure to the MSDs, especially on the vicinity of arm. The aim of this study is to determine whether there are differences in wrist angle variations, forearm muscular loads, comfort and normal performance between the invented movable armrest and a conventional armrest when using a computer mouse. Eight experienced VDU workers performed a standardized simple task set which consists of 15 detailed tasks with each armrest. The wrist angle variations in the right arm were registered by electrogoniometer and the muscle activities in the shoulder, deltoid and two extensors in the forearm were also registered by electromyograph. The subjects rated perceived comfort while performing the tasks with each armrest. Working with the invented armrest, compared to general, gave significantly decreased wrist angle variations at most of the detailed tasks of both biaxial movements. Moreover, as the distance of targets increased, the difference of muscle activities in two different situations trend to be increasing. At the same time, in work with invented armrest, the subjects rated more comfort and they showed decreased normal performances in 8 detailed tasks which were mainly caused by macro moving time.