树木风振机理研究综述-世界林业研究.pdfVIP

22 5 Vol. 22 No. 5 2009 10 World Forestry Research Oct2009 * 汤昌海 周建中 崔云静 ( , , 100083) : 概述了近几十年来树木风振模型的发展, 提出建立树冠树干 树根三者结合的整体有限元模型, 同时 考虑其非线性效应是今后的研究方向, 并且还需开展对树冠结构减振效应的量化研究, 建立树干风振恢复力 模型以及树木风振的随机振动模型 : 风害,树木, 风振模型, 动力特性 : S 11 : A : 1001- 4241( 2009) 05- 005 - 05 M echan ism of W ind- induced V ibration of T rees Tang Changhai Zhou Jianzhong Cu iYunjing ( Key Laboratory of Soil and W ater Conservation Desertification Combating ofM inistry of Education, School of Soil and W aterC onservation of Beijing ForestryUn ivers ity, Bejing 100083, Ch ina) Abs tract: This article summarizes the progress of the preceding decades for the w ind- induced vibra tion model of trees. And future study should focus on: 1) the developm ent of the fin ite elementmod el of integrated crown structure, tree trunks and roots and the nonlinear effect asw ell at the same tmi e; 2) quantitative analysis of structural damping effect of the crow n; and 3) the establishment of the restoring force model of trunks and stochastic vibration model of trees. This paper has an mi por tant theoretical and practical value in promoting the application of vibration theory in forestry and its developm ent K ey w ord s: w ind damage, tree, w ind- induced vibration model, dynam ic characterristics , , [ 1] , , 1 , , , [ 2] ,