- Tytuł:
- Seasonal variations of oscillation and vibration parameters of Acer platanoides
- Autorzy:
-
Netsvetov, M.
Nikulina, V. - Powiązania:
- https://bibliotekanauki.pl/articles/41129.pdf
- Data publikacji:
- 2010
- Wydawca:
- Polska Akademia Nauk. Instytut Dendrologii PAN
- Tematy:
-
seasonal variation
oscillation
vibration
maple
swaying
Acer platanoides
plant property
mechanical property
growth condition - Opis:
- 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.
- Źródło:
-
Dendrobiology; 2010, 64
1641-1307 - Pojawia się w:
- Dendrobiology
- Dostawca treści:
- Biblioteka Nauki
Artykuł