한국구조물진단유지관리공학회 논문집 (Journal of the Korea institute for structural maintenance and inspection)

  • 제26권1호
  • /
  • Pages.19-28
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  • 2022
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  • 2234-6937(pISSN)
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  • 2287-6979(eISSN)
한국구조물진단유지관리공학회 (Korea Institute for Structural Maintenance Inspection)
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복합면진장치를 적용한 무정전전원장치의 1축 진동대실험 기반 동적특성 분석

Dynamic Characteristic of the Seismic Performance of Uninterruptible Power Supply with Combined Isolator Using Shaking Table Test

  • 투고 : 2021.11.24
  • 심사 : 2021.12.30
  • 발행 : 2022.02.28
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초록

본 연구에서는 전력·통신 설비로 분류되는 무정전전원장치의 내진성능을 향상하기 위하여 고감쇠고무와 와이어 면진장치를 결합한 3가지 유형의 복합면진장치를 개발하였다. 복합면진장치를 적용한 UPS의 동적 특성을 분석하기 위하여 단축 진동대 실험을 수행하였다. 진동대 실험은 국외 진동대 실험 기준인 ICC-ES AC156을 따라 수행하였으며 기준에서 제시하고 있는 요구응답스텍트럼을 기반으로 입력 지진파를 생성하였다. 입력 지진파의 스케일을 50%에서 200%까지 증가시키며 가진하였다. 진동대 실험을 바탕으로 UPS의 손상양상 및 고유진동수, 감쇠비. 동증폭계수, 상대변위 등 동적특성을 비교 및 분석하였다. 3가지 유형의 복합면지장치를 적용함에 따라 UPS의 내진성능이 향상되었으며 이를 통해 개발 면진장치의 성능을 검증하였다.

In this study, three types of combined isolator consisting of High Damping Rubber Bearing (HDRB) and wire isolator were developed for Uninterruptible Power Supply system (UPS). The dynamic characteristics of the combined isolator were investigated through one-axis shaking table test. The input acceleration were generated in accordance with ICC-ES AC156 code. Scale factors of the input acceleration were designed to be 0.5-2 times the required response spectrum defined in ICC-ES AC156. Based on the test results, damage and dynamic characteristics of the UPS were investigated: including natural frequency, damping ratio, acceleration time history response, dynamic amplification factor and relative displacement. Based on that, it was found that the combined isolator developed in this study could improve the seismic behavior of the UPS, in particular, the response acceleration.

키워드

과제정보

본 논문은 국토교통부 국토교통기술촉진연구사업의 연구비 지원 (21CTAP-C164089-01)과 국토안전관리원에서 수행하는 기본연구사업 (건축 마감재 안전점검 요령및 보수·보강 기법 개발)에 의해 수행되었습니다.

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