A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effects of oscillation amplitude on aerodynamic derivatives
In this paper, the effects of oscillation amplitude on the aerodynamic derivatives of the thin rectangular cylinder with B/D = 13 and 150 were investigated. It was clear that the torsional amplitude affected strongly the aerodynamic derivatives H2x and A2x. This effect reduced the critical velocity of flutter by about 10%. The cause of this effect was investigated by the measurement of the unsteady surface pressure. This investigation made it clear that the variation of A, is caused by the movement of the acting point of the resultant lift force. These results indicate that these effects cannot be disregarded for such a simple thin plate but for a real bridge girder with a more complex cross-section and with delicate aerodynamic control devices.
Effects of oscillation amplitude on aerodynamic derivatives
In this paper, the effects of oscillation amplitude on the aerodynamic derivatives of the thin rectangular cylinder with B/D = 13 and 150 were investigated. It was clear that the torsional amplitude affected strongly the aerodynamic derivatives H2x and A2x. This effect reduced the critical velocity of flutter by about 10%. The cause of this effect was investigated by the measurement of the unsteady surface pressure. This investigation made it clear that the variation of A, is caused by the movement of the acting point of the resultant lift force. These results indicate that these effects cannot be disregarded for such a simple thin plate but for a real bridge girder with a more complex cross-section and with delicate aerodynamic control devices.
Effects of oscillation amplitude on aerodynamic derivatives
Noda, M. (author) / Utsunomiya, H. (author) / Nagao, F. (author) / Kanda, M. (author) / Shiraishi, N. (author)
Journal of Wind Engineering and Industrial Aerodynamics ; 91 ; 101-111
2003
11 Seiten, 4 Quellen
Article (Journal)
English
Effects of oscillation amplitude on aerodynamic derivatives
| British Library Conference Proceedings | 2003
Effects of oscillation amplitude on aerodynamic derivatives
| Online Contents | 2003
Effects of oscillation amplitude on aerodynamic derivatives
| Elsevier | 2002
| British Library Online Contents | 2016