http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
허재성,박은천,이성경,이상현,김홍진,조지성,조봉호,주석준,민경원,Heo, Jae-Sung,Park, Eun-Churn,Lee, Sung-Kyung,Lee, Sang-Hyun,Kim, Hong-Jin,Jo, Ji-Seong,Cho, Bong-Ho,Joo, Seok-Jun,Min, Kyung-Won 한국전산구조공학회 2008 한국전산구조공학회논문집 Vol.21 No.2
본 연구에서는 하나의 제어장치로 서로 직교하는 2방향의 건물응답을 동시에 제어할 수 있는 동조액체질량감쇠기(Tuned Liquid Mass Damper; TLMD)를 제안하고 제어성능을 실험적으로 검증하였다. 본 연구에서 제안된 TLMD는 한 방향으로는 동조액체기둥감쇠기(Tuned Liquid Column Damper; TLCD) 내부에 채워진 액체의 운동에너지를 이용하여 구조물의 응답을 제어하게 된다. 그리고, 다른 한 방향 즉 TLCD의 직각 방향으로는 LM guide(linear motion guide) 위에 놓인 TLCD 수조와 내부의 액체의 질량을 이용하여 동조질량감쇠기(Tuned Mass Damper; TMD)로 거동하게 함으로써 구조물의 응답을 감소시킨다. 이와 같은 TLMD의 양방향 독립거동 특성을 증명하기 위해 실물크기의 구조물에 설치하여 강제진동실험을 수행하였다. 실험결과, 양방향 모두 대상 구조물의 응답을 감소시키는 것을 확인하여 제안된 TLMD의 효용성을 검증하였다. In this paper, a tuned liquid mass damper(TLMD) was proposed and experimentally investigated on its control performance, which can control bi-axial responses of building structures by using only one device. The proposed TLMD controls the structural response in a specific one direction by using a liquid sloshing of TLCD. Also, the TLMD reduces the response of structures in the other orthogonal direction by behaving as a TMD that uses mass of the container itself and liquid within container of TLCD installed on linear motion guides. Force-vibration tests on a real-sized structure installed with the TLMD were performed to verify its independent behavior in two orthogonal directions. Test results showed that the responses of a structure were considerably reduced by using the proposed TLMD and its usefulness for structural control in two orthogonal directions.
실시간 하이브리드 진동대 실험법에 의한 양방향 TLMD의 진동제어 성능평가
허재성(Heo, Jae-Sung),이성경(Lee, Sung-Kyung),박은천(Park, Eun-Churn),이상현(Lee, Sang-Hyun),김홍진(Kim, Hong-Jin),조지성(Jo, Ji-Seong),조봉호(Cho, Bong-Ho),민경원(Min, Kyung-Won) 한국소음진동공학회 2008 한국소음진동공학회 논문집 Vol.18 No.5
An experimental real-time hybrid method, which implements the vibration control of a building structure with only a two-way TLMD, is proposed and verified through a shaking table test. The building structure is divided into the upper experimental TLMD and the lower numerical structural part. The shaking table vibrates the TLMD with the response calculated from the numerical substructure, which is subjected to the excitations of the measured interface control force at its top story and sinusoidal waves input at its base. The results show that the conventional method can be replaced by the proposed methodology with a simple installation and accuracy for evaluating the control performance of a TLMD.
허재성(Heo, Jae-Sung),박은천(Park, Eun-Churn),이상현(Lee, Sang-Hyun),이성경(Lee, Sung-Kyung),김홍진(Kim, Hong-Jin),조봉호(Cho, Bong-Ho),조지성(Jo, Ji-Seong),김동영(Kim, Dong-Young),민경원(Min, Kyung-Won) 한국소음진동공학회 2008 한국소음진동공학회 논문집 Vol.18 No.3
This paper presents a design of a tuned liquid mass damper(TLMD) for controlling bi-directional response of high-rise building structure subjected to windload. The proposed damper behaves as a tuned mass damper(TMD) of which mass is regarded as the mass of a tuned liquid column damper(TLCD) and the case wall of the TLCD itself in one direction and the TLCD in the other direction. Because the proposed device has coupled design parameter along two orthogonal directions, it is very important to select designing components by optimal fine tuning. In the designing TLMD, for easy maintenance, the rubber-bearing with small springs was applied in TMD direction. In this study, the Songdo New City Tower 1A in Korea, which has been designed and constructed two TLCDs in order to control bi-directional response, was chosen as the model building structure. The results of rotation test proved the effectiveness of bi-directional behavior of TLMD.
허재성(Jae sung Heo),오영택(Young Taek Oh),정연훈(Yun Hoon Choung),김철호(Chul Ho Kim),신유섭(Yoo Seob Shin) 대한두경부종양학회 2017 대한두경부 종양학회지 Vol.33 No.1
Background/Objective: The survival and recurrence pattern of the patients with primary cancer of the external auditory canal was evaluated. Materials & Methods: Seventeen patients with primary cancer of the external auditory canal from 2002 to 2013 was analyzed retrospectively. Overall survival, recurrence free survival, local recurrence free survival and distant metastasis free survival was calculated by Kaplan-Meyer’s method. Results: Five year overall survival rate, 5 year recurrence free survival rate, 5 year local recurrence free survival rate and 5 year distant metastasis free survival rate were 49.3% 54.9%, 64.7% and 69.6% respectively. The recurrence pattern is different to the pathologic type, squamous cell carcinoma or adenoid cystic carcinoma. The patients with squamous cell carcinoma showed local recurrence and the patients with adenoid cystic carcinoma showed distant metastasis mainly. Conclusion: Primary cancer of external auditory canal showed different clinical course depend on the pathologic diagnosis.
단순지지 TSC 합성보의 부착강도가 휨 내력에 미치는 영향에 관한 실험적 연구
박영수 ( Park Young-soo ),허재성 ( Heo Jae-sung ),서동기 ( Seo Dong-gee ),이창남 ( Lee Chang-nam ),김상섭 ( Kim Sang-seup ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.1
Recently developed TSC beam is composite structure. Stud bolts were used as shear connectors at the composite beam to resist the horizontal shear forces occurred between concrete slab and U type steel beam. In this study, interface delamination test was conducted to know relationship between bond strength which is affected by crack of concrete and flexural strength of TSC composite beam. Form oil and sand were used for four specimens to generate interface and compared with two standard specimens.