摘要
简要介绍了有限元分析及建立刚度矩阵的直接法,指出平衡条件是构成刚度矩阵和矩阵方程的基本条件,并通过实例说明在结构静态分析中应用平衡条件可以验证结论的精确性、求解未知载荷及消除无约束的结构静态分析中的奇异矩阵。
The paper introduces finite element analysis and the direct method of establishing rigidity matrix. The balanceable condition is proposed to be a basic element to construct the establishing rigidity matrix and matrix equation. Some application examples show that the balanceable condition is useful in analysis of static state to validate conclusion ,seek unknowable load , and remove singularity matrix in nonrestraint structure static analysis.
出处
《机械》
2004年第12期11-13,共3页
Machinery
基金
三峡大学科学基金资助项目
关键词
有限元分析
平衡条件
静态分析
finite element analysis
balanceable condition
static state
