查询词典 numerical method

In the homogeneous model, the function of tendons is assumed to be uniform in some approximated way in order to form an equivalent homogeneous material within concrete. The formulation of the homogeneous model is same with that of general FEM for common continuum, let alone the elastic matrix being resultant of that of tendon and concrete. The computation is simple, but the approximate assumption makes this method cannot be generalized, because it only represents the constitution and function of tendons in such a rough way, that the numerical results are inaccurate. In the combined model, the function of tendon is considered by the stiffness matrix with rod element, then add it into the stiffness matrix of concrete by a rational way.

均匀类单元是设想将钢筋均匀弥散于整个单元中，使其成为一种连续均匀材料单元，这种单元的与一般有限元的单元刚度矩阵推导过程一样，只不过其弹性矩阵由混凝土和钢筋两部迭加而成的，此类单元刚阵计算简明而又不会扩大计算规模，但均匀弥散只是为计算简单而作一种假想，不贴近单元构造实际，也不符合实际作用效果。

A novel method is presented for the numerical simulation of erbium-doped fiber amplifiers , which are modeled as homogeneously broadened two-level systems.

此外，还改进了掺铒光纤参数的测量方法，减少了参数测量的系统误差。

As a practical example, the numerical simulation of mechanical characteristics for compact bone by homogenization method is introduced.

作为应用实例，本文介绍了均匀化理论在密质骨力学性能的数值模拟中的应用。

The results of the numerical experiments under the condition of homogenous and heterogeneous initial models prove that the method is feasible.

数值实验在均匀和非均匀初始模型条件下的反演结果证明该方法是可行的。

The theoretical and numerical results show that the hybrid method is efficient.

理论和数值结果表明，此混合型方法是一个有效方法。

Based on fluid numerical results, a new parameter and its calculating method which are both strictly derived from basic equations of hydromechanics and thermodynamics are used to evaluate the mixing effect of viscous fluid.

从流体力学及热力学的基本方程出发，经严格推导给出了一种新的基于流场数值计算结果的评价粘性流体混合均化效果的参量及其计算方法。

Finally, we propose a method on general numerical simulation for Hanyuan intensity anomaly, which is based on the summary and the refinement of damage characteristics, and with the consideration of hypocenter mechanism, crust media and nonlinear site condition.

为此作者提出，应在震害特征总结提炼的基础上，考虑震源机制、地壳介质、场地非线性等因素，对汉源烈度异常区进行全面的数值模拟，进一步确定汉源地震烈度异常的机理。

Numerical simulation by Matlab for the new hypocycloid energy transformation mechanisms was done by means of the four-order Runge-kutta's method. The result shows that the simple harmonic and rectilinear motion of piston in the new mechanism make the engine working more stable. The peak acceleration is around 25% lower in the new mechanism than that in the conventional slider-crank mechanism. And the output speed is much higher at the same identical mean effective pressure and same load torque. And then the output power of the engine is improved.

基于四阶Runge-Kutta法，运用MATLAB进行了仿真验证，结果表明，新型内摆线能量转换机构的活塞做完全简谐直线运动，运动更加平稳；活塞加速度峰值比传统曲柄滑块机构小25%；在相同的气缸平均等效压力和负载转矩下，具有较高的输出转速，提高了内燃机的输出功率。

The method of reliability numerical simulation has been presented based on the system invalidation,whose logic hypotaxis is fault tree. By replacing the structure function of the fault tree with the cuts, the course of calculation has been simplified and the computer arithmetic has been optimized.

摘 要：提出了基于系统失效性，以故障树为仿真逻辑关系的可靠性数字仿真方法，并且利用割集对故障树中的结构函数进行了替代，大大简化了仿真计算步骤，优化了计算机算法。

Finally, a numerical example is used to illustrate the use of the proposed method.

最后，进行了实例分析，说明了该方法的实用性和有效性。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。