Investigation of Modal Behaviour of Resonance Spruce Wood Samples (Picea abies L.)

• Autorzy: Mania P. , Fabisiak E. , Skrodzka E.

Identyfikatory

DOI

10.1515/aoa-2017-0003

• Języki publikacji: EN

Abstrakty

EN

Results of experimental modal analysis of a resonance and non-resonance spruce wood (Picea abies L.) are presented. The resonance wood came from a tree from Poland and Bosnia and Herzegovina, while the non-resonance wood came from the vicinity of Olsztyn from the north-eastern Poland. The modal parameters (modal frequency, modal damping and mode shapes) of the wood samples were determined for the samples of 8 mm in thickness. Modal analysis was made by pulse excitation. The resonance and non-resonance wood differ in the fundamental modal parameters as well as in the number of potential modes. Additionally, calculated values of damping factor are presented. The values are much bigger for a non-resonance wood than for good quality resonance spruce.

Słowa kluczowe

EN

resonance wood; spruce wood; modal analysis

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2017
• Tom: Vol. 42, No. 1
• Strony: 23--28
• Opis fizyczny: Bibliogr. 19 poz., tab., wykr.

Twórcy

autor

Mania P.

• Department of Wood Science, Poznań University of Life Sciences, Wojska Polskiego 38/42, 60-627 Poznań, Poland

autor

Fabisiak E.

• Department of Wood Science, Poznań University of Life Sciences, Wojska Polskiego 38/42, 60-627 Poznań, Poland

autor

Skrodzka E.

• Faculty of String Instruments, Harp, Guitar and Violin – Making, I.J. Paderewski Academy of Music, św. Marcin 87, 61-808 Poznań, Poland
• Institute of Acoustics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).