Seasonal variations of oscillation and vibration parameters of Acer platanoides

• Autorzy: Netsvetov M. , Nikulina V.
• Języki publikacji: EN

Abstrakty

EN

This article describes an investigation into the seasonal variations of frequency, damping ratio and amplitude of swaying and vibration of Norway maple Acer platanoides L. The study was carried through a series of pull andrelease experiments in situ andon branches in the laboratory using an artificial air flow. It was foundthat foliatedtrees hada natural sway frequency that was on average 1.6±0.2 times greater than in the out-of-leaf state. In contrast, the damping ratio of maple increased by 1.5±0.3 times in the summer period. The stem swaying initiatedvibrations, i.e. elastic wave, in the roots with frequencies in the range of 45–50 Hz. Laboratory tests showed that the vibration amplitude of branches depended linearly on leaf mass for an air flow velocity of 1.94 m/s.

Słowa kluczowe

EN

seasonal variation; oscillation; vibration; maple; swaying; Acer platanoides; plant property; mechanical property; growth condition

• Wydawca: -
• Czasopismo: Dendrobiology
• Rocznik: 2010
• Tom: 64
• Opis fizyczny: p.37-42,fig.,ref.

Twórcy

autor

Netsvetov M.

• Donetsk Botanical Garden, National Academy of Sciences of Ukraine, 110 Illicha av.,83059 Donetsk, Ukraine

autor

Nikulina V.

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