http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤태양(Tae Yang Yoon) 한국강구조학회 1994 韓國鋼構造學會誌 Vol.6 No.1
Wind tunnel tests and analyses of the response of the Seo Hae Grand Bridge were conducted using full aerorelastic model technique. A 1/250 scale aeroelastic model were used to measure the responses of the prototype bridge at the twelve critical locations. Two different turbulent intensity values simulating open and turbulent exposure conditions were used to conduct the testings. In order to confirm the model design and fabrication, natural frequencies measured from the model were compared with those from the analysis. Comparisons of the response from the tests were made between the full aeroelastic model and the section model. Tests for two construction stages such as a concrete single pylon and cirtical double cantilever stage with and without tie-down cable were also conducted and the results were compared.
윤태양(Tae Yang Yoon) 한국강구조학회 1993 韓國鋼構造學會誌 Vol.5 No.4
In this study an iterative method is employed to simulate the vibrational behavior of extensible cables under hydrodynamic loading. Geometric nonlinearity which is characterized by large displacements and load-displacement equilibrium configurations as well as nonlinear terms in drag forces due to the relative flow of the fluid are considered. Curvature and current effects on natural vibrations from the inertial resistance due to acceleration of the cable and from the viscous resistance due to the relative velocity of the cable are also considered.
윤태양(Tae Yang Yoon),송재준(Jae Joon Song) 한국강구조학회 1994 韓國鋼構造學會誌 Vol.6 No.2
Wind tunnel tests and analyses of the response of the Seo Hae Grand Bridge were conducted using section model and full aeroelastic model technique. A 1/80 scale section model was used to develop the optimum section to minimize vortex shedding induced vibration without reducing the flutter speed. In order to evaluate the sensitivity of the response to changes in structural damping, a series of tests were conducted with three different values of structural damping ranging from 0.2% to 1.0% of critical. Several options to increase the critical wind speed for torsional flutter were described and solutions proposed. Comparisons of the response from the 1/250 scale full aeroelastic model test were made with those from the section model tests. The results of the Equivalent Static Analysis were also compared with the measurements made on the full aeroelastic model. Aspects of the results for the erection stages are also made.