TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

An architectural understanding of natural sway frequencies in trees

Tutkimustuotosvertaisarvioitu

Standard

An architectural understanding of natural sway frequencies in trees. / Jackson, T.; Shenkin, A.; Moore, J.; Bunce, A.; van Emmerik, T.; Kane, B.; Burcham, D.; James, K.; Selker, J.; Calders, K.; Origo, N.; Disney, M.; Burt, A.; Wilkes, P.; Raumonen, P.; Gonzalez de Tanago Menaca, J.; Lau, A.; Herold, M.; Goodman, R. C.; Fourcaud, T.; Malhi, Y.

julkaisussa: Journal of the Royal Society. Interface, Vuosikerta 16, Nro 155, 28.06.2019.

Tutkimustuotosvertaisarvioitu

Harvard

Jackson, T, Shenkin, A, Moore, J, Bunce, A, van Emmerik, T, Kane, B, Burcham, D, James, K, Selker, J, Calders, K, Origo, N, Disney, M, Burt, A, Wilkes, P, Raumonen, P, Gonzalez de Tanago Menaca, J, Lau, A, Herold, M, Goodman, RC, Fourcaud, T & Malhi, Y 2019, 'An architectural understanding of natural sway frequencies in trees' Journal of the Royal Society. Interface, Vuosikerta. 16, Nro 155. https://doi.org/10.1098/rsif.2019.0116

APA

Jackson, T., Shenkin, A., Moore, J., Bunce, A., van Emmerik, T., Kane, B., ... Malhi, Y. (2019). An architectural understanding of natural sway frequencies in trees. Journal of the Royal Society. Interface, 16(155). https://doi.org/10.1098/rsif.2019.0116

Vancouver

Jackson T, Shenkin A, Moore J, Bunce A, van Emmerik T, Kane B et al. An architectural understanding of natural sway frequencies in trees. Journal of the Royal Society. Interface. 2019 kesä 28;16(155). https://doi.org/10.1098/rsif.2019.0116

Author

Jackson, T. ; Shenkin, A. ; Moore, J. ; Bunce, A. ; van Emmerik, T. ; Kane, B. ; Burcham, D. ; James, K. ; Selker, J. ; Calders, K. ; Origo, N. ; Disney, M. ; Burt, A. ; Wilkes, P. ; Raumonen, P. ; Gonzalez de Tanago Menaca, J. ; Lau, A. ; Herold, M. ; Goodman, R. C. ; Fourcaud, T. ; Malhi, Y. / An architectural understanding of natural sway frequencies in trees. Julkaisussa: Journal of the Royal Society. Interface. 2019 ; Vuosikerta 16, Nro 155.

Bibtex - Lataa

@article{fa10b2891923428786fe746a52504f45,
title = "An architectural understanding of natural sway frequencies in trees",
abstract = "The relationship between form and function in trees is the subject of a longstanding debate in forest ecology and provides the basis for theories concerning forest ecosystem structure and metabolism. Trees interact with the wind in a dynamic manner and exhibit natural sway frequencies and damping processes that are important in understanding wind damage. Tree-wind dynamics are related to tree architecture, but this relationship is not well understood. We present a comprehensive view of natural sway frequencies in trees by compiling a dataset of field measurement spanning conifers and broadleaves, tropical and temperate forests. The field data show that a cantilever beam approximation adequately predicts the fundamental frequency of conifers, but not that of broadleaf trees. We also use structurally detailed tree dynamics simulations to test fundamental assumptions underpinning models of natural frequencies in trees. We model the dynamic properties of greater than 1000 trees using a finite-element approach based on accurate three-dimensional model trees derived from terrestrial laser scanning data. We show that (1) residual variation, the variation not explained by the cantilever beam approximation, in fundamental frequencies of broadleaf trees is driven by their architecture; (2) slender trees behave like a simple pendulum, with a single natural frequency dominating their motion, which makes them vulnerable to wind damage and (3) the presence of leaves decreases both the fundamental frequency and the damping ratio. These findings demonstrate the value of new three-dimensional measurements for understanding wind impacts on trees and suggest new directions for improving our understanding of tree dynamics from conifer plantations to natural forests.",
keywords = "finite-element analysis, fundamental frequency, natural frequencies, terrestrial laser scanning, tree architecture, wind damage",
author = "T. Jackson and A. Shenkin and J. Moore and A. Bunce and {van Emmerik}, T. and B. Kane and D. Burcham and K. James and J. Selker and K. Calders and N. Origo and M. Disney and A. Burt and P. Wilkes and P. Raumonen and {Gonzalez de Tanago Menaca}, J. and A. Lau and M. Herold and Goodman, {R. C.} and T. Fourcaud and Y. Malhi",
year = "2019",
month = "6",
day = "28",
doi = "10.1098/rsif.2019.0116",
language = "English",
volume = "16",
journal = "Journal of the Royal Society. Interface",
issn = "1742-5689",
publisher = "Royal Society, The",
number = "155",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - An architectural understanding of natural sway frequencies in trees

AU - Jackson, T.

AU - Shenkin, A.

AU - Moore, J.

AU - Bunce, A.

AU - van Emmerik, T.

AU - Kane, B.

AU - Burcham, D.

AU - James, K.

AU - Selker, J.

AU - Calders, K.

AU - Origo, N.

AU - Disney, M.

AU - Burt, A.

AU - Wilkes, P.

AU - Raumonen, P.

AU - Gonzalez de Tanago Menaca, J.

AU - Lau, A.

AU - Herold, M.

AU - Goodman, R. C.

AU - Fourcaud, T.

AU - Malhi, Y.

PY - 2019/6/28

Y1 - 2019/6/28

N2 - The relationship between form and function in trees is the subject of a longstanding debate in forest ecology and provides the basis for theories concerning forest ecosystem structure and metabolism. Trees interact with the wind in a dynamic manner and exhibit natural sway frequencies and damping processes that are important in understanding wind damage. Tree-wind dynamics are related to tree architecture, but this relationship is not well understood. We present a comprehensive view of natural sway frequencies in trees by compiling a dataset of field measurement spanning conifers and broadleaves, tropical and temperate forests. The field data show that a cantilever beam approximation adequately predicts the fundamental frequency of conifers, but not that of broadleaf trees. We also use structurally detailed tree dynamics simulations to test fundamental assumptions underpinning models of natural frequencies in trees. We model the dynamic properties of greater than 1000 trees using a finite-element approach based on accurate three-dimensional model trees derived from terrestrial laser scanning data. We show that (1) residual variation, the variation not explained by the cantilever beam approximation, in fundamental frequencies of broadleaf trees is driven by their architecture; (2) slender trees behave like a simple pendulum, with a single natural frequency dominating their motion, which makes them vulnerable to wind damage and (3) the presence of leaves decreases both the fundamental frequency and the damping ratio. These findings demonstrate the value of new three-dimensional measurements for understanding wind impacts on trees and suggest new directions for improving our understanding of tree dynamics from conifer plantations to natural forests.

AB - The relationship between form and function in trees is the subject of a longstanding debate in forest ecology and provides the basis for theories concerning forest ecosystem structure and metabolism. Trees interact with the wind in a dynamic manner and exhibit natural sway frequencies and damping processes that are important in understanding wind damage. Tree-wind dynamics are related to tree architecture, but this relationship is not well understood. We present a comprehensive view of natural sway frequencies in trees by compiling a dataset of field measurement spanning conifers and broadleaves, tropical and temperate forests. The field data show that a cantilever beam approximation adequately predicts the fundamental frequency of conifers, but not that of broadleaf trees. We also use structurally detailed tree dynamics simulations to test fundamental assumptions underpinning models of natural frequencies in trees. We model the dynamic properties of greater than 1000 trees using a finite-element approach based on accurate three-dimensional model trees derived from terrestrial laser scanning data. We show that (1) residual variation, the variation not explained by the cantilever beam approximation, in fundamental frequencies of broadleaf trees is driven by their architecture; (2) slender trees behave like a simple pendulum, with a single natural frequency dominating their motion, which makes them vulnerable to wind damage and (3) the presence of leaves decreases both the fundamental frequency and the damping ratio. These findings demonstrate the value of new three-dimensional measurements for understanding wind impacts on trees and suggest new directions for improving our understanding of tree dynamics from conifer plantations to natural forests.

KW - finite-element analysis

KW - fundamental frequency

KW - natural frequencies

KW - terrestrial laser scanning

KW - tree architecture

KW - wind damage

U2 - 10.1098/rsif.2019.0116

DO - 10.1098/rsif.2019.0116

M3 - Article

VL - 16

JO - Journal of the Royal Society. Interface

JF - Journal of the Royal Society. Interface

SN - 1742-5689

IS - 155

ER -