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2010 | 64 |
Tytuł artykułu

Seasonal variations of oscillation and vibration parameters of Acer platanoides

Treść / Zawartość
Warianty tytułu
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.
Wydawca
-
Czasopismo
Rocznik
Tom
64
Opis fizyczny
p.37-42,fig.,ref.
Twórcy
autor
  • Donetsk Botanical Garden, National Academy of Sciences of Ukraine, 110 Illicha av.,83059 Donetsk, Ukraine
autor
Bibliografia
  • Baker C.J. 1997. Measurements of the natural frequencies of trees. Journal of Experimental Botany 48: 1125–1132.
  • Casas J., Magal C., Sueur J. 2007. Dispersive and non-dispersive waves through plants: implications for arthropodvibratory communication. Proceeding of the Royal Society B. 274: 1087–1092.
  • Castro-García S., Blanco-Roldán G.L., Gil-Ribes J.A., Agüera-Vega J. 2008. Dynamic analysis of olive trees in intensive orchards under forced vibration. Trees – Structure andFunction 22: 795–802.
  • Cocroft R.B., Rodriguez R.L. 2005. The behavioral ecology of insect vibrational communication. Bio-Science 55: 323–334.
  • EnglandA.H., Baker C. J., Saunderson S.E.T. 2000. A dynamic analysis of windthrow of trees. Forestry 73: 225–237.
  • Kelly S.G. 2006. Advanced Vibration Analysis. CRC Press, Boca Raton.
  • Moore J.R., Maguire D.A. 2005. Natural sway frequencies andd amping ratios of trees: influence of crown structure. Trees – Structure andFunction 19: 363–373.
  • Netsvetov M.V., Khizhenkov P.K., Suslova O.P. 2009. An introduction to the vibrational ecology. Weber, Donetsk.
  • Netsvetov M., Nikulina V. 2009. Oscillation damping by foliage of Acer platanoides L. saplings. Forest Science 21–30.
  • Niklas K.J. 1992. Plant biomechanics: an engineering approach to plant form andfunction. University of Chicago Press, Chicago.
  • Roodbaraky H.J., Baker C.J., Dawson A.R., Wright C.J. 1994. Experimental observations of urban trees in high winds. Journal of Wind Engineering and Industrial Aerodynamics 52: 171–84.
  • Rudnicki M., Silins U., Lieffers V.J., Josi G. 2001. Measure of simultaneous tree sways and estimation of crown interactions among a group of trees. Trees – Structure and Function 15: 83–90.
  • Sellier D., FourcaudT. 2009. Crown structure and woodproperties: influence on tree sway andre - sponse to high winds. American Journal of Botany 5: 885–896.
  • Smiley E.T., Kane B. 2006. Effects of pruning type on windload ing of Acer rubrum. Arboriculture and Urban Forestry 32: 33–40.
  • Spatz H.-C., Brüchert F., Pfisterer J. 2007. Multiple resonance damping or how do trees escape dangerously large oscillations? American Journal of Botany 94: 1603–1611.
  • Telewski F.W. 2006. A unifiedhypothesis of mechanoperception in plants. American Journal of Botany 93: 1466–1476.
  • Vogel S. 2009. Leaves in the lowest andhighest winds: temperature, force and shape. New Phytologist 183: 13–26.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-556425ac-2011-42c2-8c23-df8d86899f27
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