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다관절 복합이동 해저로봇에 적용된 탄소섬유 복합소재 프레임에 대한 진수/인양 조건에서의 구조해석
유승열(Seongyeol Yoo),전봉환(Bong-Huan Jun),심형원(Hyoungwon Shim),이판묵(Pan-mook Lee) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
This paper describes finite element analysis(FEA) for the body frame of 200 meter class multi-legged subsea robot, Crabster200(CR200). The body frame of CR200 is designed as a rib cage in order to disperse applied external loads and is made of carbon fiber reinforced plastic(CFRP). Therefore, the frame is lighter and stronger than a frame of the other conventional materials. In order to perform the reasonable FEA for CFRP body frame, we carried out specimen test of CFRP. Using the obtained material properties from the test, we performed FEA with respect to load conditions of launch and recovery process on the sea. Also, we performed FEA of the frame with conventional material to compare characteristics to CFRP.
곡면 형태의 주파수 선택적 표면의 전파 투과 및 반사 특성에 관한 연구
이지홍(Jihong Lee),조경환(Kyounghwan Jo),오상진(Sangjin Oh),심형원(Hyoungwon Shim),서일성(Il-Sung Seo),김근홍(Geun-Hong Kim) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11
Although a lot of studies have covered the analysis of infinite FSS and a few have been devoted to the finite FSS, the studies regarding with the curved effects on the band-pass FSS radome rarely have been studied. In this paper, we studied curverd effects on FSS. Using previous studies for plat FSS, we analysed the characteristic of curved FSS.