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최창림,양보석,최병근 한국소음진동공학회 2004 한국소음진동공학회 논문집 Vol.14 No.8
This paper focuses on the formulation and validation of an automatic strategy to select the optimal location and direction of strain gauges for the measurement of the modal response. These locations and directions are important to render the strain measurements as robust as possible when a random mispositioning of the gauges and gauge failures are expected. The approach relies on the evaluation of the signal-to-noise ratios of the gauge measurements from strain data of finite element. The multi-step optimization strategy including genetic algorithm is used to find the strain gauge locations-directions that maximize the smallest modal strain signal-to-noise ratio in the absence of gauge failure or its expected value when gauge failure is possible. A flat Plate is used to prove the applicability of the proposed methodology and to demonstrate the effects of the essential parameters of the problem such as the mispositioning level, the probability of gauge failure, and the number of gauges.
비남향 판상형 아파트 주개구부 향 결정에 대한 설계전문가 의식 조사 연구
최창림(Choi Chang-Lim),김석조(Kim Seok-Jo),신용재(Shin Yong-Jae) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
The purpose of this study is to reveal the consciousness of architects for the opening orientation of the non-south oriented flat-type apartment building. Main considerations are to figure out advantage or disadvantage of 3 types comparative evaluation by the values of orientation and environmental conditions, Questionnaire survey data are analysed by SPSS+. The results of this study were as follows: 1) the advantage ratio of E and E~S.E are more than 92% level, but that of W~SW is 60% level. 2) the sequences of environmental conditions are solar radiations>view>privacy>noise>ventilation.