摘要
基于力密度法应用于膜结构分析时需求解大型线性方程组,并结合该方程组具有稀疏、对称及正定的特点,提出采用共轭梯度法对其进行求解,通过算例分析证明,该算法收敛快、精度高,是求解力密度方程组高效、可靠的数值分析方法。
Based on the fact that large linear equation is needed when force density method is used,combining with the characteristics of the equation which are sparse,symmetric and positive,points out the conjugate gradient method is used to solve,and proves that the method is speedy and accurate,so it can an effective and reliable analysis method for the force density equation.
出处
《山西建筑》
2010年第18期45-46,共2页
Shanxi Architecture
关键词
共轭梯度法
膜结构
力密度法
conjugate gradient method
membrane structure
force density method
