computational instability
英 [ˌkɒmpjuˈteɪʃənl ˌɪnstəˈbɪləti]
美 [ˌkɑːmpjuˈteɪʃənl ˌɪnstəˈbɪləti]
计算不稳定性
双语例句
- Control time delay induced by the zero-order-hold effect and the computational time delay was one of major disadvantages of digital control, which could induce system oscillation and even instability.
由零阶保持器及计算时间产生的控制延时是数字控制的主要缺点之一，这会导致系统振荡以至不稳定。 - As the numerical experiments of the new schemes show, by solving the problem of enstrophy conservation scheme design, the new scheme in computational practice can solve their own problem of ( nonlinear) computational instability and that of ( nonlinear) computational convergence under certain condition.
新型保真方案的数值实验表明，计算实践中，新方案在解决拟能守恒问题的同时，可解决（非线性）计算稳定问题，并在一定条件下可解决非线性计算收敛性问题。 - Computational simulations are the main method to study fluid instability during an implosion in inertial confinement fusion.
数值模拟是惯性约束聚变内爆中流体不稳定性研究的主要方法。 - A computational scheme of different medium interfaces in the numerical simulation of flow interfacial instability
流体界面不稳定性数值模拟中不同介质界面的处理方法 - Two specific examples of non-linear computational instability are given for the explicit Galerkin finite element approximation.
文中还给出了一维、二维的显式Galerkin有限元近似的非线性计算不稳定的例子。 - Besides, the two theorems can also solve two large categories of problems about linear and nonlinear computational instability.
此外，文中两个定理还可解决两大类问题的线性和非线性计算不稳定性问题。 - By means of qualitative analysis and numerical experiments, it is shown that computational instability is prone to occur for three time level schemes, but two time level schemes made computational stability easy, and the numerical results is best when parameter equal 2/ 3.
跨声速主流与边界层迭代的稳定性分析与数值实验计算试验证实三时间层格式容易产生计算不稳定，二时间层格式易于稳定，并且发现参数取2/3时，计算结果最好。 - In this paper, the concept, phenomena and handling methods of nonlinear computational instability in the problems of numerical weather prediction are discussed.
本文综合介绍天气预报问题中的非线性计算不稳定的含义、计算现象和处理办法。 - Farther Research on Nonlinear Computational Instability Problems
非线性计算不稳定问题的进一步研究 - By means of qualitative analysis and numerical experiments, it is shown that nonlinear computational instability is prone to occur for three ( time) level schemes, especially when two-step computational initial values have opposite signs and the dissipation coefficient is very small.
利用定性分析和数值试验的方法证实这类三时间层格式有时容易出现非线性计算不稳定，尤其是两步计算初值反号和耗散系数过小的时候是如此。 - Especially, two direct formulation theroms of square and weighted square perfect conservative time difference scheme, which can solve their problem of nonlinear computational instability thoroughly and reasonably, is given here.
特别地，还建立了关于平方和加权平方整体守恒性质完全保持的保真时间差分格式的两个直接构造定理，解决了该两类问题的整体性质保持问题和它们的非线性计算稳定性问题。 - Currently, the topology optimization based on finite element structural analysis has been developed more mature, but the problems of the topology optimization based on element free method still have many issues to be resolved; such as computational instability and low efficiency.
当前，基于有限元结构分析的拓扑优化问题已发展的比较成熟，而对于无网格法的拓扑优化仍有很多问题待解决，如计算不稳定，效率低等。 - Another difficulty is that implicit curves/ surfaces may have unwanted components and self-intersections which lead to computational instability and topological inconsistency in geometric modeling. All these unsatisfied properties limit the applications of the exact implicitization in practical fields.
这就引起了计算的不稳定性和几何造型中拓扑结构的不一致性，从而大大限制了隐式化在实际问题中的运用。 - Computational results have overall safety and do not exist overall instability issues;③ ccording to the larger features of steel plate girder webs and through space finite element analysis, and then it will have the different instability forms of combining beam section in different load combination effect.
计算结果具有总体安全性，不存在整体失稳问题；③根据钢板梁腹板高厚比较大的特点，通过空间有限元分析，结合梁梁段在不同的荷载组合作用下有不同的失稳形式。 - Five problems related with numerical simulations, such as the computational accuracy, tensile instability, ghost particle method, initial smoothing length and material interface made by different particle spacing, are studied.
从计算精度、拉伸不稳定性、虚粒子方法、初始光滑长度和非均匀粒子间距界面等五个方面讨论了SPH方法数值计算相关问题。 - The computational results indicate that the failure mode of cyclic instability and distribution of equivalent plastic strain in soft ground are somewhat different from those of ultimate failure state under static loading.
通过计算表明：单桶形基础在循环荷载作用下的失稳破坏形态及地基中的等效塑性应变分布与单调荷载作用下的极限破坏状态是存在一定差异的。