Analysis and finite element simulation for mechanical response of wheat to wind and rain loads

作     者：Liang Li Guo Yuming 

作者机构：College of Engineering and TechnologyShanxi Agricultural UniversityTaigu 030801China 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2008年第1卷第1期

页      面：82-88页

核心收录：

学科分类：0710[理学-生物学] 0810[工学-信息与通信工程] 09[农学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0901[农学-作物学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：The authors would like to thank the College of Agriculture Shanxi Agricultural University P.R.China to provide wheat for testing.The authors would also like to thank the Research Fund for the Doctoral Program of Higher Education(20060113002) 

主　　题：wheat wind and rain loads finite element analysis mechanical response 

摘      要：The morphological characteristics and stalk biomechanical properties at the dough stage of wheat were determined using the variety of wheat in the breeding *** mechanical responses to wind and rain loads for an individual and a group of wheat were simulated using finite element method by *** stress and displacement of each finite element can be outputted through stress nephogram and displacement nephogram,*** order to judge whether the wheat could return to its original position after deformation,elastic mechanics theory was utilized to analyze the critical load of instability under both axial rain load and transverse wind *** large displacement situation was analyzed with large displacement elastic nonlinear theory and the numerical value was obtained by *** results show that it is possible to apply various load types on models using ANSYS and the dynamic response can be simulated well under different rain and wind *** location of maximum Von Mises stress can be calculated and the variation of stress can be described clearly,which are helpful to predict the wheat lodging under wind and rain loads.