【摘要】 塔式起重机结构有限元分析中,静力方程求解器是分析程序的核心。随着塔机求解规模的增大及对求解速度的高要求,传统的直接求解器愈显不足,成为有限元分析中的瓶颈。目前较好的塔机有限元程序是用稀疏直接求解器,其中引入循环展开(loop-unrolling)技术改进工作性能,实践证明,它对内存或硬盘空间的需求量明显减少,求解速度得到显著提高。更多还原

【Abstract】 Large-scale eqution solver is a key techinique in finite element programs.It has become the bottleneck with respect to computer time and storage and the high solver speed for people.The sparse direct solver is adopted by the better finite element programs of tower crane.A method to incorporate the loop-unrolling strategy to improve its efficiency,it has shown its advantages both in solution time and memory(hard disk) space requirement through practice.更多还原