空力振動する三次元正方形角柱の風圧変動場に関するPOD解析 その3　逆対称モードの層風力変動係数

小泉 達也; 西 将志; 神田 亮; 田中 秀和; 久保田 理人

doi:10.14887/jaweam.2011.0.127.0

Summaries to Technical Papers of Annual Meeting, Japan Association for Wind Engineering

DOI https://doi.org/10.14887/jaweam.2011.0.127.0

Conference information

Host: Japan Association for Wind Engineering

Analysis of Complex Proper Orthogonal Decomposition for Fluctuating Wind Pressure Field Acting on the Surface of Oscillating 3D Square Prism

Part3 Wind Force Variation Coefficient of Inversely-Symmetical Mode at each Story

*Tatsuya KOIZUMI, Masayuki NISHI, Makoto KANDA, Hidekazu TANAKA, Rihito KUBOTA

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Keywords: Proper Orthogonal Decomposition, Wind Pressure Fluctuation, Vortex Shedding, Galloping Vibration, Phase Difference, Inverted Conical Vortex

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 127

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Abstract

In this paper, the wind force coefficient at each story is evaluated and the characteristics of wind pressure fluctuation are discussed. The two types of phase distribution are shown. The distributions can be distinguished from the case of vortex shedding and the case of galloping vibration. It can be imagined that conical vortex generates from the phase distribution of vortex shedding.

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