相互耦合

Based on Kogelnik's one-dimensional coupled-wave theory and dispersed Fourier transform, the diffractive characteristic of two pieces of volume phase gratings, which are cascaded and having orthogonal grating vectors for the continuous-wave laser beam, is analyzed.

利用Kogelnik一维耦合波理论，以及离散傅里叶变换，分析光栅矢量相互正交，且串联级联放置的两透射型体相位光栅对空域任意分布的连续激光光束的衍射特性；讨论其对入射光束的空间低通滤波性能，并具体模拟其对畸变高斯光束空间低通滤波的效果。

Conditions of the seepage and stress is a dynamic process, and also shows its interaction and interdependence. Owing to the closure of the fracture, the hydraulic gradient and the permeability pressure of the fracture turn large, and also promote the expansion of water cracks, and fissures connectivity increasing. The increase of the crack opening width will result in the increase of the infiltration capacity and seepage flow, and the reduction of seepage pressure. Because of the dynamic dependence of the fracture aperture, pressure and seepage, under certain conditions, changes in fracture aperture can lead to the formation of local water-passage, and the local emission of high pressure water, and thus promotes the formation of the sudden outgush disasters.

结果表明：洞室开挖完成后，在围岩渗流与应力耦合作用下，围岩中裂隙隙宽、裂隙中水压及其渗透流量的变化是一个动态过程，且相互作用与相互依赖；裂隙的闭合使得结构面水力梯度变大，作用在裂缝上的渗透压力增大，促进导水裂缝扩展，裂隙连通性增加；裂缝张开度增大，渗透能力增强，渗流量增大，其渗流压力相应降低；由于围岩中裂隙隙宽、压力和渗流量的动态依赖性，在一定条件下，裂隙隙宽的改变可导致局部水力通道的形成，高压水头从局部涌出，从而促进突水灾害的形成。

A 3D potential flow theory is carried out to solve the wave-induced coupled motions between two ships.

本文采用三维势流理论求解两船在波浪中相互干扰的耦合运动。

The effects of variable properties of real gas and material, characteristic of valve, coupled heat transfer of regenerator, mutual influence of first and second stage, and so on, were considered in the model.

模型中考虑了实际气体性质，磁性填料的变物性，阀门的配气特性，回热器的空容积及气体和填料的耦合换热，一、二级的相互影响等因素，综合模拟了双级G－M制冷机的工作过程。

Brake vibration and noise is a phenomenon of self-induced vibration due to friction coupling and improper matching of modal parame...

制动振动噪声是由摩擦耦合诱发、制动器各部件子结构的模态参数相互匹配不当而导致的系统自激振动现象。

Brake vibration and noise is a phenomenon of self-induced vibration due to friction coupling and improper matching of modal parameters of different brake components.

制动振动噪声是由摩擦耦合诱发、制动器各部件子结构的模态参数相互匹配不当而导致的系统自激振动现象。

In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.

本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结，并分析了虹吸式排水系统的优势；再对虹吸式排水管道进行原型试验研究，采用不同管径不同立管高度，对系统流量、管道压强进行量测，观察了各种工况下的流态，对其水力特性进行研究分析，找出影响水力特性的落差、管径主要因素以及与排水量的关系；进一步应用计算流体力学Fluent软件，采用标准κ-ε模型与RNGκ-ε模型，计算过程应用有限体积法和二阶迎风格式对数值模型进行离散，速度和压力的耦合采用SIMPLE算法，分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析，通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究；本文首次采用结合原型试验与数值模拟相结合的方法，对虹吸式屋面雨水排水系统进行研究，试验与模拟相互验证，并进行拓展，很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题，结果正确合理，为排水管网系统设计和优化研究提供了有效的方法，对工程设计有较好的参考价值。

The whole process of energy transition is a complicated process with compound input and output which is associated and coupled.

整个能量转换过程是一个复杂的，多输入、多输出的过程，在输入和输出之间存在着相互关联和耦合。

And the grasp features of the combined numerical cyclist dummy's hand is determined by simulation experiments, highlighting the interaction force between the cyclist and the two-wheeler, the driving inertia of the two-wheeler, the coupling force between the tyre and the ground, and thus set up the human-vehicle-road coupling system simulation model.

通过仿真试验确定组合式骑车人数值仿真假人的手部抓握特性，突出骑车人与两轮车之间的相互作用力，两轮车的行驶惯性和其轮胎与地面之间的耦合力，从而建立了骑车人-两轮车-路面耦合系统仿真模型。

Each potential seismic source is simulated by a series connection of linear springs and slider called abasic system and the interaction between two basic systems is simulated by an equivalent coupling spring.

这一模型是将每一潜在震源等效为由线性弹簧和刚性滑块串联而成的子系统，相邻的两个基本系统之间的相互影响则用一个等效的耦合弹簧模拟。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失