1) shifted progressive subspace iteration
移轴迁移子空间迭代法
1.
A combination of preconditioned conjugate gradient method and shifted progressive subspace iteration method is proposed for solving eigenproblems of structures.
本文采用前置共轭梯度法与移轴迁移子空间迭代法相结合求解结构特征值问题。
2) subspace iteration method with modal transfer
迁移式子空间迭代法
1.
The subspace iteration method with modal transfer is developed to solve the generalized eigenvalue problem, the preceding q dimensional engenvalues and engenvectors needed can be obtained efficiently by means of this method.
利用有限元法计算了量子化学中双原子分子的Hartree-Fock-Slater方程,用八节点等参元来离散所要求解的方程,在计算离散后的广义特征值问题时,采用迁移式子空间迭代法来求解。
3) spatial operator migration
空间算子迁移
1.
Combining the spatial query algebra optimization and spatial operator migration, an extended spatial rule discrimination network ESRDN is proposed.
本文采用空间查询代数优化技术和空间算子迁移方法,提出扩展的空间规则鉴别网络(ESRDN)模型,给出ESRDN的优化启发式规则及其正确性证明,分析结果表明,该改进模型可以提高空间数据主动规则的条件测试效率。
5) subspace iteration method
子空间迭代法
1.
Taking the double-cable suspension bridge located in the lower reach of the Huanghe Daxia Reservoir as an example,the natural vibration characteristics of the suspension bridge are analyzed by introducing in 3-D tension-only elements and adopting the subspace iteration method of the geometrical nonlinearity nature.
引入只受拉三维拉索单元,采用考虑几何非线性的子空间迭代法对黄河大峡水库下游某双索悬索桥自振特性进行分析,理论值与实测值能较好的吻合,说明该空间非线性有限元分析方法的正确性;进而将该桥与相同跨径和结构参数的单索悬索桥的自振频率、振型进行对比分析,结果表明双索悬索桥能有效提高桥梁一阶竖弯振动频率。
2.
The free vibration characteristics of stringed beam structure were analyzed systematically with subspace iteration method of software ANSYS.
利用ANSYS软件中的子空间迭代法,分析了张弦梁结构的自振特性,针对不同的参数如矢跨比、垂跨比、撑杆数、横索数、预应力度和整体倾角等进行了大量参数分析,得出了各参数对张弦梁结构的自振特性的影响及张梁弦结构的自振规律。
6) subspace iteration
子空间迭代法
1.
A subspace iteration algorithm is applied to solve the problem using a quasi front method.
针对叶片动频率陀螺特征值问题,首先将其转化为等价的广义实对称矩阵特征值问题,然后用拟波前子空间迭代法进行求解。
2.
By the EBE strategy and the preconditioned conjugate gradient method (PCG method),we have developed an EBE-subspace iteration for generalized eigenproblems, in which all computations are performed on the element level.
本文利用EBE策略和预处理共轭梯度法(PCG法),将广义特征值问题子空间迭代法中各步的计算都单元化,从而避免了总刚度和总质量矩阵的组集,大大节省了存储量。
3.
In this paper, subspace iteration is used to reduce high-order dynamic systems to loworder ones.
本文采用子空间迭代法将工程结构高阶动力系统减缩为低阶动力系统,然后用Collatz包含定理的推广求出该结构系统的最低阶固有频率。
补充资料:元代颜辉《李仙像》轴

李仙即八仙之一的“李铁拐”,由清内府收藏。另一幅出自颜辉之手的李仙侧身像藏日本京都智恩院。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条