1) Maximum width of the uncut chip
无条件稳定阈值
2) unconditional stability
无条件稳定
1.
A New Criterion of the Unconditional Stability of Multigroup Multidelays Hyperneutral Type Linear Constant System;
多组多滞后超中立型线性定常系统无条件稳定的一个新判据(英文)
2.
The findings indicate that the method still has the advantage of unconditional stability,no transcendental phenomenon and better damp of algorithm.
结果表明,方法仍然具有无条件稳定、无超越现象、有较好算法阻尼等特性,具体算例也验证了高阶单步法在解刚度硬化和刚度软化问题时比γ函数方法具有更高的精度和更好的稳定性。
3.
In this paper, a method for developing high accuracy unconditionally stable integration schemes is presented; a third-order accuracy unconditional stability algorithm is developed, which can be applied to the dynamic analysis of proportionally and non-proportionally damped structures.
提出了一种构造高精度无条件稳定的积分格式方法,建立了具有三阶精度的无条件稳定直接积分法,既适用于比例阻尼体系,也适用于非比例阻尼体系。
3) unconditional stable
无条件稳定
1.
Two classes of implicit difference schemes with the local truncation errors are O(τ~2+h~2) and O(τ~4+h~4) respectively for solving the three-dimensional wave equation are proposed and proved to be unconditional stable by Fourier analysis.
提出了数值求解三维波动方程的两种精度分别为O(τ2+h2)和O(τ4+h4)的三层紧致隐格式,利用Fourier分析方法证明了格式均是无条件稳定的。
2.
Two classes of unconditional stable,weighted average implicit difference schemes for the twodimensional diffusion equation are proposed.
提出了数值求解二维扩散方程两种精度分别为O(τ2+h2)和O(τ2+h4)的无条件稳定的加权平均隐格式,并采用多重网格方法进行求解,从而克服了传统迭代法在求解隐格式时收敛速度慢的缺陷,提高了求解效率。
3.
Two classes of weighted average implicit difference schemes with the local truncation errors being O(τ2+h2) and O(τ2+h4) respectively for solving the threedimensional parabolic equation are proposed and proved to be unconditional stable by Fourier analysis.
提出了数值求解三维抛物型方程的两种精度分别为O(τ2+h2)和O(τ2+h4)的两层加权平均隐格式,利用Fourier分析方法证明了格式均是无条件稳定的。
4) unconditionally stable
无条件稳定
1.
The method is a semi-analytical method, hence it can be accurately solved on time domain, and it is unconditionally stable.
由于该方法是半解析方法,在时间域上可以精确计算,本方法不仅精确度高,还无条件稳定。
2.
A computationally robust and unconditionally stable implicit/implicit staggered procedure presented by Zienkiewicz is proved to be stable by Park s method.
介绍了Zienkiewicz给出的一种高效的无条件稳定的隐式 /隐式交叉迭代法 ,并依据 Park的思想详细证明其稳定性。
3.
The truncation errors of the method are O(τ 2+h4) and it is proved to be unconditionally stable by Fourier analysis.
通过Fourier分析方法证明了该格式是无条件稳定的。
5) threshold condition
阈值条件
1.
Study of the C→A transition excimer laser threshold condition;
C→A跃迁准分子激光阈值条件的研究
2.
For the laser system performance, the threshold condition is of great significant.
对于激光系统性能而言,激光工作阈值条件具有非常重要的意义。
3.
This paper deals with the threshold condition of double resonance parametric oscillation when the absorption coefficient of the signal light is different from that of the idling light.
在信号光和闲置光吸收系数不同的情况下对双谐振参量振荡阈值条件进行了分析。
6) the numerical stability conditions
数值稳定性条件
1.
For the finite-difference time-domain(FDTD) method in quantum mechanics,the numerical stability conditions meaning the relationship of spatial increment and time increment are often determined empirically.
对于量子力学中的时域有限差分法,往往基于经验来确定其数值稳定性条件即空间和时间增量必须满足的关系。
补充资料：地理阈值
亦称地理临界值。它将地理系统中的不同状态加以分隔与区分，把某一性质的表现范围加以限制和说明。在此种意义上，地理阈值代表了系统的“状态空间”的非连续性。在一般叙述中，常把地理阈值等同于地理系统边界条件，但二者是有区别的：如果两种不同的状态同时存在于相同的边界条件之中时，地理阈值的表现可能是“非传递性”的转移；而当两种不同状态分置于不同的边界条件之中时，地理阈值的表现可能是“过渡性”地转移。无论是非传递性转移的地理阈值，还是过渡性转移的地理阈值，都使地理系统中不可能具备唯一的、通用的或稳定的解。所谓“解”都是有条件的，都是在地理阈值约束下的解。
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