摘要
力矩分配法是结构力学中的一种渐近计算方法 ,一般只能用于连续梁或无侧移刚架的计算。研究表明 ,若将该方法中的力矩延拓为广义力 ,可得到一种能应用于任何杆系结构的广义力分配法。若在此基础上 ,再引用有限元离散技术 ,则可演化出一种有别于传统有限元法的新的数值计算方法——元胞单元法。在简要回顾经典力矩分配法之后 ,引申出广义力分配法和元胞单元法 ,以平面和空间刚架计算为例 ,描述了元胞单元法解题步骤和计算结果。
Moment distributed method is an approximate method used in structure mechanics.Generally,it can be only used to analyze continuum beams or rigid frames with angle displacements.Researches show that the method can be applied to analyze any frame when general forces substitute for moment.Based on moment distributed method and the disperse technique in finite element method,a new method--cellular element method is being discovered.The ideas of general forces distributed method and cellular element method were introduced.The basic principle of cellular element method was explained,and the computation steps and results were presented.In order to study its validity,two examples of framed structures were shown.
出处
《武汉理工大学学报》
CAS
CSCD
2004年第6期35-38,共4页
Journal of Wuhan University of Technology
基金
国家自然科学基金 (10 372 0 75)
关键词
力矩分配法
元胞单元法
元胞自动机
有限元
moment distributed method
cellular element method
cellular automata
finite element method
