提出了计算失效率的快速收敛的迭代算法,并分析了失效率与广义强度和广义应力的均值及变异系数的关系。
What's more, the relation between the probability and the average values and variation coefficients of generalized stress and generalized strength is analyzed.
该方法对目标函数无连续、可微等要求,能较快地收敛到全局最优权系数。
Usually, the algorithm can quickly converge to the global optimum weight coefficients.
新算法只用更新一少部分的系数,因此它的收敛速度加快了,计算量大大减小了。
Because of fewer coefficients updated in the new algorithm, the convergence speed increases and the computational effort decreases significantly.
当区间线性方程组的系数矩阵a为区间H阵时,证明了BIMV算法的可行性与收敛性。
The feasibility and convergence of the BIMV method are proved when the coefficient matrix a of interval linear equations is an interval H-matrix.
本文首次系统地对多种半线性问题,研究了插值系数有限元的超收敛性,获得了比较完整的结果。
For the first time this paper makes a systematic study about superconvergence of interpolated coefficients finite element method for many semilinear problems and obtains rather integrated results.
通过引入动态步长和惯性项系数提高了网络收敛速度。
The convergent rate of the network was improved by inducting the dynamic step length and the coefficient of inertia item.
本文考虑当系数矩阵为正定对称矩阵,H阵及L阵情况下TOR型方法的收敛性。
We consider the convergence of TOR-Type method under the conditions when the coefficient matrices are positive definite symmetric matrices, H-mat - rices, L-matrices.
当该矩阵的安全系数在形心处最小时,运用二分法将控制收敛矩阵尺寸减小一半进行计算,直到满足要求为止。
When the safety factor of the centroid is the minimum, the dimensions of the matrix lets up the half by dichotomy to precede the calculation until satisfy the request.
对悬链面找形时发现,当黏性系数不大于0.7时,动力松弛法收敛,网格节点分布较无阻尼时均匀。
During form-finding of catenoid, when the viscosity coefficient was not more than0.7, the dynamic relaxation method taking damp into account had good convergence and the nodes distributed more even.
暗穴临界安全厚度随着暗穴断面尺寸、暗穴半径收敛值、安全系数、地面荷载等参数的增大而增大。
The critical safety thickness of hidden cavity increases with the augment of hidden cavity section size, radial constringency, safety coefficient and surface loading.
根据内窥镜成像特性以及基于全局收敛的线性搜索法来确定畸变图像中心和多项式系数。
A new method to correct the barral distortion of endoscope image based on the line search method of guaranteed global convergence is presented.
计算机的摸拟实验表明:最大系数法具有较好的收敛特性。
Thesimulating experiment by using computer shows that the maximum coefficiantmethod has good convergent characteristic.
调整该算法中两个梯度矢量的比例系数,可提高该算法收敛速度、减少收敛后的均方误差。
In the MCMA, adjusting the scale coefficients of two gradient vectors can improve the convergence rate and reduce residual mean square error.
利用上述结果,对象模型的全部系数可在线实时辨识并收敛于工程真值。
Using the above result, all unknown parameters of model's equation can be identified on-line and real time, and converge to engineering truth value.
特别地,对于常数振幅情形,得到了多项式系数估计的强收敛速度。
Specifically, the convergence rate of coefficient estimate is obtained in constant amplitude case.
研究了几类K阶整系数线性微分方程解的超级、零点收敛指数和零点超收敛指数,得到一些精确的结果。
The hyper order, the exponent of convergence and the hyper-exponent of convergence of zeros of solutions for some types of K-order linear differential equations with entire coefficients are discussed.
即使条块形状是变化的,该法也能够给出一致的安全系数值,而且能够保证迭代过程稳定收敛。
Even if the shape of slice is varied, the proposed new method can also give consistent values of safety factors and ensure that the iteration is stably convergent.
本文研究了系数为强单调算子的椭圆型偏微分方程,得到了解的梯度的几乎处处收敛性。
In this paper, we study the elliptic partial differential Cquation whose coefficients are strongly monotony operators, and obtain the everywhere convergence of the gradients of solutions.
由该控制收敛矩阵4个角点的安全系数的大小决定下一个控制收敛矩阵移动的方向。
The magnitude of the safety factor at 4 corner points of the previous control convergent matrix will determine the movement direction of the next control convergent matrix.
针对盲均衡算法中,以梯度的估值计算抽头最佳系数时收敛性不理想的问题,介绍了一种新的以高阶矩来求解均衡系数的方法,并对该方法的性能进行了讨论。
But most blind equalizer converge very slow, a new algorithm for calculating the best coefficients using high order moments presented, and get a conclusion for the performance of the method.
为解决修正常系数模板算法(MCMA)收敛速度缓慢的问题,在MCMA算法的基础上,给出了一种变步长双模式MCMA算法。
To solve the problem of slow convergence in the modified constant modulus algorithm (MCMA), a variable step and dual mode blind equalization algorithm is proposed, based on the MCMA algorithm.
与圆形孔相比,位于喉部上游位置收敛缝形孔既具有好的冷却效率又具有低的损失系数。
Compared with cylindrical holes, the converging slot holes at the upstream of the throat exhibit both higher cooling effectiveness and lower aerodynamic loss coefficient.
理论分析和计算机模拟均表明,基本的系统模型是成立的,而系数更新的后一种模型有较好的收敛速度。
It is shown analytically and by computer simulations that the basic system model proposed is valid, and that the latter updating model has a faster convergence rate over the former updating model.
在每次成功收敛非线性分析的最后,用旧的总荷载系数与当前荷载比的总和计算总荷载系数。
The total load factor is computed as the sum of the old total load factor and the current Loading Rate at the end of each successfully convergent nonlinear analysis.
该算法克服了在一般的常系数盲数字自适应算法中,由于估计幅值选择不合适,所造成加权矢量不收敛的缺点。
No convergent drawback of the weight vector due to choose the dispersion constant inaccurately in the normalized constant modulus algorithms (NCMA) is overcome.
用比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式;并得到了计算傅立叶系数的一种简便方法。
A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.
同时,模拟实验还得出了电容c、电阻r、放大系数K与网络收敛时间的关系。
Meanwhile the simulation also reveals the relations among capacity c, resistance r, gain Kand time.
小球的半径、折射率越小,以及环境的粘滞系数越大,小球轨迹的振荡越弱,收敛速度越快。
Smaller particles and larger viscosity of surrounding medium resulted in less oscillation and faster convergence to the parabolic line.
小球的半径、折射率越小,以及环境的粘滞系数越大,小球轨迹的振荡越弱,收敛速度越快。
Smaller particles and larger viscosity of surrounding medium resulted in less oscillation and faster convergence to the parabolic line.
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