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NEW CONCEPT ABOUT STIFFNESS OF GUITAR SOUNDBOARD BASED ON GOLDEN SECTION NUMBERS

The paper presents a new concept about stiffness of guitar soundboard based on golden section number. The traditional strutting systems were replaced with another pattern which was designed according with golden ratio. Experimental researches about dynamical behaviour of new guitar body were performed. The results in terms of Chladni figures, frequency response, power spectral density and sound pressure level were compared with the previous studies.