查询词典 numerical method

By using the meshless method, a numerical ocean engineering basin was established to simulate irregular waves propagated in shallow water. Locating the source points outside the computational domain, the problem of water wave propagation was solved by collocation of only a few boundary points instead of meshes.

采用基于配点和径向基函数的无网格数值模拟方法，建立数值海洋工程水池，将源点布置在模拟波浪场之外，沿边界布置配点而不是划分网格；对深水不规则波经斜坡过渡后在均匀水深浅水域中传播的过程进行无网格数值模拟和波谱的迭代修正。

A main element method with the column matrix of the process of numerical computation of the comrades should help.

详细说明：一个用列主元法求解矩阵的程序，对数值运算的同志应该有所帮助。

In this thesis, theoretical analysis method combined with numerical simulation calculation is used.

论文采用理论分析与数值仿真计算相结合的方法。

The numerical computational method and results can play a significant part in the design of combustion chamber in diesel engines.

所采用的数值计算方法和分析结果对柴油机燃烧室的设计工作具有参考意义。

Thirdly, a new type base isolation system, i. e., slide-limited friction base isolation system is presented in this paper. Based on this system, harmonic and subharmonic periodic response of S-LF subjected to harmonic motion is investigated by using Floquet theory. Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

Dynamic response of sliding structure subjected to earthquake ground motion is calculated with a precise high order direct integration method, and the numerical results are presented in terms of maximum acceleration response spectra of supcrstructure and maximum sliding displacement response spectrum. By comparison with isolating effects of pure-friction base isolation system and resilient-friction base isolation system , it shows that the isolating characteristic of S-LF is superior to P-F and R-FBI. Through analyzing an engineering example, it is observed that the maximum inter-storey shear force and absolute acceleration of sliding structure to earthquake ground motion are very different from those of traditional structures.

提出了一种新型基础隔震模型，即带限位装置的摩擦隔震体系；基于此隔震模型，利用Floquet理论研究地面谐运动下S-LF结构的运动特性；并利用高精度的精细时程积分法，通过对地震作用下S-LF动力响应的计算，绘制了上部结构最大加速度反应谱和基底最大滑移量反应谱，并研究了各种结构参数对隔震的影响；通过与恢复力摩擦隔震系统和纯摩擦力滑移隔震系统的比较表明，S-LF的隔震性能优于P-F和R-FBI；对计算实例的分析发现，地震作用下S-LF结构的层间最大剪力和最大绝对加速度反应分布较一般传统结构有很大区别。

The results show clear that the spectral element method possesses high numerical accuracy and the adaptability to the complex computation domain.

计算表明提出的等参谱元方法的精度非常高，同时对曲边求解区域具有比较好的适应性。

The achievement that soil ultimate bear capacity heightened under pile caps due to barrier effect of piles gained from model test, and soil move around piles acquired from numerical simulation, its not only verified hypothesis of composite pile foundation nonlinear design theory, but have important reference value to the study of design theory and design method of composite pile foundation, which help to go deep into study of promote pile-soil-pile caps nonlinear interaction theory and composite pile foundation nonlinear design theory.

由模型试验得到的桩的遮拦作用对承台下土体极限承载力提高和数值模拟得到的土体绕桩流动等成果，不仅验证了

In the paper, a mathematical model of borehole gas transient flow in the process of gas drilling is set up and a numerical solution method is put forward on the basis of the unsteady flow theory of compressible fluid.

基于可压缩流体不稳定流动理论，文章建立了气体钻井过程中井内瞬态流动的数学模型并提出了模型的数值解法。

The result of numerical computation agree with that of experiment, which shows that the method is feasible.

计算结果与实验结果相符合，表明数值计算方法是合理可行的。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新