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유한요소해석을 통한 진동 감쇠형 와이어웨이시스템의 내진성능 검증
트란 반 한,진수민,김성찬,차지현,신지욱,이기학,Tran, V. Han,Jin, Su Min,Kim, Sung Chan,Cha, Ji Hyun,Shin, Jiuk,Lee, Kihak 한국공간구조학회 2020 한국공간구조학회지 Vol.20 No.4
A new lighting support structure composing of two-way wires and pulley, a pulley-type wireway system, was developed to improve the seismic performance of a ceiling type lighting equipment. This study verifies the seismic performance of the pulley-type wireway system using a numerical approach. A theoretical model fitted to the physical features of the newly-developed system was proposed, and it was utilized to compute a frictional coefficient between the wire and pulley sections under tension forces. The frictional coefficient was implemented to a finite element model representing the pulley-type wireway system. Using the numerical model, the seismic responses of the pulley-type wireway system were compared to those of the existing lighting support structure, a one-way wire system. The addition of the pulley component resulted in the increasement of energy absorption capacity as well as friction effect and showed in significant reduction in maximum displacement and oscillation after the peak responses. Thus, the newly-developed wireway system can minimize earthquake-induced vibration and damage on electric equipment.
Tri-axial Shaking Table Tests for Seismic Performance Evaluation of Pulley-wireway System
Tran, Van Han(트란 반 한),Shin, Jiuk(신지욱),Lee, Kihak(이기학) 한국콘크리트학회 2021 한국콘크리트학회 학술대회 논문집 Vol.33 No.2
This study presents an experimental seismic investigation of four types of pulley-wireway system and an existing lighting structure support, a one-way system, through tri-axial shaking table tests. The test results and vibration analysis showed that two types of pulley-type wireway systems, wall type and H-beam frame type, showed the best seismic performance. Furthermore, the addition of the pulley component resulted in the increment of energy absorption capacity as well as friction effect and showed a significant reduction in oscillation after the peak responses.
유한요소해석을 통한 진동 감쇠형 와이어웨이시스템의 내진성능 검증
진수민(Su Min Jin),트란 반 한(Han Van Tran),김성찬(Sung Chan Kim),신지욱(Jiuk Shin),이기학(Kihak Lee) 한국조명·전기설비학회 2021 한국조명·전기설비학회 학술대회논문집 Vol.2021 No.11
The addition of the pulley component resulted in the increasement of energy absorption capacity as well as friction effect and showed in significant reduction in maximum displacement and oscillation after the peak responses.