1) numerical path integral solution method
数值路径积分法
2) path integral method
路径积分法
1.
The random differential equation is solved numerically by the path integral method, the joint probability density functions of roll angle and roll angular velocity and their marginal probability density functions are obtained.
将随机波浪激励简化为周期激励加白噪声扰动,采用路径积分法数值求解随机微分方程,得到横摇角和横摇角速度的联合概率密度函数和边缘概率密度函数。
2.
The probability density function of the roll response is calculated by solving the differential equation of ships rolling using the path integral method.
应用随机Melnikov均方准则初步划分了船舶发生随机跳跃的参数区域后,由路径积分法求解横摇运动微分方程,得到船舶横摇响应的联合概率密度函数。
3) numerical integration
数值积分法
1.
In order to obtain the numerical solution of ordinary differential equation,this paper utilized the numerical integration,and used Hermite Interpolation,infered a sixth order implicit linear multistep formula on three equal-spaces pitch points.
为求解常微分方程数值解,文中运用数值积分法,采用埃尔米特插值多项式,推导出三个等距节点的六阶隐式线性多步法公式;并且对所建立公式的精度进行了分析;进一步通过实例运用计算机编程将阿达姆斯外推法等线性多步法和所建立的公式进行了精度比较。
2.
The dynamics model and space state equations of rigid magnetic suspension rotor system were established and analyzed by numerical integration approach.
为了研究某磁悬浮转子的非线性动力学特性,考虑了系统非线性因素的影响,由Taylor级数展开得到非线性电磁力的表达式,建立了刚性磁浮轴承转子系统动力学模型和空间状态方程,用数值积分法对其进行分析。
3.
The construction of boundary type cubature is a problem that has been noticed for a very long time in numerical integration.
边界型求积公式是数值积分法研究方向早就被注意的问题。
4) numerical integration method
数值积分法
1.
Global probabilistic seismic capacity analysis of structures based on Zhou-Nowak numerical integration method;
基于Zhou-Nowak数值积分法的结构整体概率抗震能力分析
2.
The first is to find the explicit expression for the average additional stress coefficient integral with Matlab software,and the second is to calculate using the traditional numerical integration method.
采用了两种方法进行计算:一是借助于Matlab推导出平均附加应力系数积分式的结果显式表达式,从而代入公式对附加应力系数进行直接计算;二是基于积分式采取数值积分法求解。
3.
The foundation described by fractional derivative model,Built the dynamics equation of machine-foundation,and got the numerical solution with the Zhang-Shimizu fractional derivative numerical integration method,discuss the effect of fractional derivative operator and visco-elastic ratio parameter.
粘弹性基础采用分数导数Kelvin本构模型,建立了分数导数描述的粘弹性基础-动力机器系统的动力学有限元方程,Zhang-Shimizu分数导数数值积分法给出了数值解,讨论了分数导数算子和粘弹比对系统的影响。
5) numerical integral method
数值积分法
1.
A new method——numerical integral method for calculating the diameter and height of spray dryer was(presented).
提出了计算喷雾干燥塔直径和高度的一种新方法———数值积分法。
2.
A nonlinear analysis program for capacity of T-shaped columns with numerical integral method is complied.
采用数值积分法编制了T形截面柱正截面承载力非线性分析程序,对5种不同配筋的等肢T形截面柱,在不同轴压比下的Mx—My曲线进行了计算,分析了不同荷载角的极限弯矩变化规律,探讨了截面配筋对截面承载能力的影响,得出了等肢T形截面柱的合理配筋。
3.
The numerical integral method is presented to calculate the landslide thrust of circular slip surface based on the principle of the conventional passing coefficient method by division blocks to calculate the landslide thrust of slip surface combined by several lines in China.
基于国内折线滑面滑坡推力计算传统的分块传递系数法原理,提出了适用于圆弧滑面滑坡推力计算的数值积分法,推导了有关的计算公式,编制了实用的计算程序。
6) path integral solution
路径积分解法
1.
A numerical path integral solution method is proposed to calculate the response statistics of the moored vessel.
提出了一个数值路径积分解法来计算该艘船舶的响应统计。
补充资料：数值积分法仿真
数值积分法仿真
simulation with numerical integration method
具有单点初值的系统来说，仿真计算难以自启动，为此需要用单步法来帮助;另外，它还要求在整个仿真过程中仿真步长保持不变。表1亚当斯法系数表‘X二·*一。一+气自:主二一，一)┌────┬──┬───┬────┬───┬───┬────────┐│名称 │yl │y2 │y3 │y4 │y5 │截断误差 │├────┼──┼───┼────┼───┼───┼────────┤│一阶显式│0 │l │ │ │ │冬*Zx‘，， ││ │ │ │ │ │ │‘ │├────┼──┼───┼────┼───┼───┼────────┤│二阶显式│0 │3/2 │一1/2 │ │ │5:、(、、 ││ │ │ │ │ │ │丫二于九一x、一 ││ │ │ │ │ │ │1乙 │├────┼──┼───┼────┼───┼───┼────────┤│三阶显式│0 │23/12 │一16/12 │5/12 │ │去h‘X“， │├────┼──┼───┼────┼───┼───┼────────┤│四阶显式│0 │55/24 │一59/24 │37/24 │一9/24│251.，‘，、 ││ │ │ │ │ │ │二二丈左一x、- ││ │ │ │ │ │ │l‘U │├────┼──┼───┼────┼───┼───┼────────┤│一阶隐式│l │ │ │ │ │一冬，，二‘，，││ │ │ │ │ │ │ 乙 │├────┼──┼───┼────┼───┼───┼────────┤│二阶隐式│l/2 │l/2 │ │ │ │一劣。
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