Analytical Estimates of Loblolly Pine Tree Center of Mass and Mass Moment of Inertia
Authors: Fridley, J. L.; Tufts, R. A.
Source: Forest Science, Volume 35, Number 1, 1 March 1989 , pp. 126-136(11)
Publisher: Society of American Foresters
Abstract:Center of mass and mass moment of inertia of a solid can be calculated by appropriate integration over the volume of the object. Taper functions estimate tree stem diameter as a function of stem height and dbh. Center of mass and mass moment of inertia about two axes were estimated for 21 loblolly pine (Pinus taeda) trees using nine different taper functions to estimate the volume of integration. Laboratory measurements (from a previous study) of the same 21 trees served as a basis for evaluating and comparing the estimates. The center of mass values determined via the taper equations are similar among taper functions. However, significant differences were found, most importantly between measured values and estimates using six of the taper functions. Few significant differences were found in the mass moment of inertia values estimated via taper equations. For. Sci. 35(1):126-136.
Document Type: Journal Article
Affiliations: School of Forestry and Alabama Agricultural Experiment Station, Auburn University, AL 36849
Publication date: March 1, 1989
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