辺長比2の角柱に生じる不安定振動挙動とその空気力学的考察

概要

論文の詳細を見る
In the range of a high reduced velocity, galloping oscillation appears in case of,a rectangular cylinder. Then the quasi-steady theory is expected to be available for prediction. It is well known that the quasi-steady theory can lead to accurate prediction for a square cylinder. However, in case of a rectangular cylinder with D/B=2, the divergent response by experiment is not in good agreement with the result of the quasi-steady theory. Also we can recognize such particular behaviors that the difference in response among the mass-damping parameter of 3, 5 and 40 is much smaller than that we have thought to, be from a large difference in the Scruton number. The purpose of this paper is to numerically predict and to clarify the above peculiar behaviors to the Scruton number for a rectangular cylinder.
社団法人日本建築学会の論文
1999-10-30