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线性极限
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  “线性极限”译为未确定词的双语例句
     After the equivalent limit states for all implicit nonlinear limit states were established,the equivalent failure probability of the structure system could be computed by the available methods.
     当结构系统所有极限状态方程都建立了其等效显式线性极限状态方程后,即可利用可得的可靠性分析方法来计算结构系统的等效失效概率。
短句来源
     From a mount of(samples),the ratio of nonlinear ultimate load to the linear one is 0.66,and the affection of different condition to the structure is found. The ultimate bearing capacity of spherical composite shell is 20 percent more than that of the concrete shell.
     由大量算例得到了非线性极限承载力与线性极限承载力的比值为0.66及不同情况下结构承载力变化趋势,组合肋壳的极限承载力比混凝土壳承载力提高20%。
短句来源
  相似匹配句对
     Limit Shadowing Property of Linear Systems
     线性系统的极限跟踪性
短句来源
     Power Properties of Linear Transformation
     线性变换的极限性质
短句来源
     LIMIT PLAY A DIRTY TRICK
     极限使坏
短句来源
     and m which is a linear subspace of Fn,may not be convex.
     F~n的线性子空间(?)
短句来源
     Linear Prediction
     线性预测
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  linear limiting
The very different behaviour in the acidic media is predicted from the linear limiting form of the equations with the assumption that the dendrites approximate to cylindrical rods and follow an instantaneous initiation law.
      


For the practical purposes this paper presents an improved approach to the first order-second moment method proposed by Paloheimo and Hannus in 1972 for the structural reliability analysis. In this improved method, an iterative scheme for calculating the safety index β and a direct procedure for calculating the mean resistance mR or characteristic resistance RK under the target safety index βK in the case of the linear limit state equation containing the non-normal basic variables are developed. The calculated...

For the practical purposes this paper presents an improved approach to the first order-second moment method proposed by Paloheimo and Hannus in 1972 for the structural reliability analysis. In this improved method, an iterative scheme for calculating the safety index β and a direct procedure for calculating the mean resistance mR or characteristic resistance RK under the target safety index βK in the case of the linear limit state equation containing the non-normal basic variables are developed. The calculated examples show that the proposed improved method is much si- mpler in calculation than Rackwitz and Fiessler method adopted by the Joint Co- mmittee on Structural Safety (JCSS) in which the iterative procedure has to be used.

本文对Paloheimo-Hannus 1972年建议的结构可靠度分析的一次二阶矩法, 提出了一个便于实用的改进方法.可计算安全指标β,也可在已知目标安全指标时,无 需迭代而宜接求解含有非正态变量的线性极限状态方程中的抗力平均值mR或特征 值RK,计算表明,建议的改进方法,与国际结构安全度联合委员会(JCSS)所采 用的需要反复迭代求解的Rackwitz-Fiessler方法(也称 JC法)相比,可大大减 少计算工作量。

Based on the geometric implication of the reliability index of the normally distributed uncorrelated variables the limit state function of which is linear, the paper introduces a method using the optimization principles to compute the reliability index, and applies powell method to work out a computer program which can directly compute the reliability index without derivation. The reliability of some engineering examples are analysed by the method, showing that the method is reliable and its accuracy isn't lower...

Based on the geometric implication of the reliability index of the normally distributed uncorrelated variables the limit state function of which is linear, the paper introduces a method using the optimization principles to compute the reliability index, and applies powell method to work out a computer program which can directly compute the reliability index without derivation. The reliability of some engineering examples are analysed by the method, showing that the method is reliable and its accuracy isn't lower than that of the "JC" method proposed by the Joint Committee on Structural Safety.

本文从线性极限状态函数下独立正态分布变量的可靠度指标β的几何涵义出发,运用最优化计算原理,提出了不用导数计算β和设计验算点的优化分析方法。文中用改进Powell法研制的计算程序,避免了大多数可靠度分析法有时甚繁的求导数工作。通过对多个工程实例的可靠度分析表明,该方法使用方便、收敛快,计算精度不低于国际结构安全度联合委员会(JCSS)推荐采用的“JC”法。

Linearied oscillation of second-order neutral difference equations with continuous variable was studied. The relation between the oscillation of the equation and its associated linear limiting equation was established. Hence the oscillatory criteria of the nonlinear difference equation(even a class of nonlinear difference equations) can be obtained by that of the corresponding linear difference equation.

利用积分法研究了二阶具连续变量中立型非线性差分方程的线性振动性,即建立了此非线性差分方程和其相应的线性极限方程振动性间的联系.通过判定一个较简单的线性差分方程的振动性,就可以得到其相应非线性差分方程,甚至是一类非线性差分方程的振动性.

 
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