空気流体中で振動応答する二次元正方形角柱の付加質量効果に関する研究 その2　現象の分析

西 将志; 田中 秀和; 神田 亮

doi:10.14887/jaweam.2009.0.34.0

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

Session ID : 171-172

DOI https://doi.org/10.14887/jaweam.2009.0.34.0

Conference information

Host: Japan Association for Wind Engineering

Study on the Added-Mass Effect for a 2D Square Prism under Response Vibration in Air Flow

Part2 Analysis of the Phenomenon

*Masayuki NISHI, Hidekazu TANAKA, Makoto KANDA

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Keywords: Added-Mass Effect, Aerodynamic Unstable Oscillation, Density Ratio, Oscillation Velocity, Complex Plane

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

This paper aims to clarify the relationships between the density ratio and the oscillation velocity.The analysis of the result in the part1 is conducted based on Added-mass effect as a result,the phenomenon,which the oscillation velocity is getting smaller with the density ratio getting smaller and the peak response frequency gets smaller than the natural frequency,can be explained by the Added-mass effect and the relationship between the density ratio and the ascillation verocity can be clarified.

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