Stress Analysis of Masson Pine in Ice and Snow Loads

Abstract

Fuyang City, Zhejiang Province Yalin this forest of pine, as the object of study, discuss the ice load in the stress and strain condition; By using fractal theory and VB jointly establish 3d mechanical structure model of pinus massoniana, then using the finite element theory analysis in the snow and ice load of stress and strain; Three types of branching structure model are developed from the model: unilateral eccentric branching model, two-way eccentric branch model and symmetrical unilateral eccentric branching model. From these three models of stress and strain, displacement map, we can draw pine optimization model in the snow and ice loads: In the trunk and branches of the upper diameter closer, symmetrical unilateral eccentric branching model are the most reasonable, two-way eccentric branch model are the most unreasonable. In the trunk and the lower part of the larger size differ in diameter, damage usually occurred in nodes of the trunk and branches; Structure established by the force model of pine and its stress analysis, optimization model plant pine trees.