| The in-depth contents |
| Publication year |
1995 |
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| Title |
THE BEHAVIOR OF FLUTTERTNG OF MEMBRANE SUSPENDED IN WIND TUNNEL AIR FLOW AND THE PROPERTIES OF THE FREQUENCY |
| Author |
Hirokazu Minam,Yasuo Okuda,Sumio Kawamura
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| Summary |
As result of experiments，it was proved that a suspended membrane took stable fluttering condition with a simple wave configuration when the membrane was subjected to uniform air flow in a wind tunnel. And it was proved that the membrane had a linear relation between the frequency of thef1 uttering and the air flow speed. It was supposed that a nondimensional parameter，αl，was connected with a function of another nondimensional parameter，mass ratio. Where α is the slope of the linear air f1ow-frequency line. and l is the distance between supports of the membrane specimen. Further, the ratios of the measured speed of the progressive wave shape to air flow speed were between 0 .4 and 0.7. It was found that the ratio was smaller for heavier membrane.
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