WHITE NOISEを用いた膜張力測定装置の開発 : 装置の改良,検証実験および実構造物への適用(構造)

概要

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A new method has been proposed by authors to measure membrane stresses in two different directions separately, where instead of measuring the membrane stresses directly, the natural frequencies of the membrane within fixed rectangular region resonated by white noise external excitation with the frequency of 0 to 500Hz induced by sound is utilized. The new method makes use of the resonance phenomena of the membrane, where the effect of added mass of surrounding air was found not to be able to ignore for high accuracy measurement, and theoretically evaluated by using an equivalent circular plate. In this paper, not only the process of the equipment improvement toward high accuracy and the result of experimental test on every process to verify its accuracy, but also the experimental test of actual suspension membrane structure are presented.
社団法人日本建築学会の論文
2007-12-20