查询词典 particle movement

This paper adapts adhesivedamping and construction damping caused by inner fraction betweenelements to absorb dynamic energy in the particle's movement for astatic solution.

本文采用了粘性阻尼和单元之间的内摩擦等引起的结构阻尼以吸收颗粒运动的动能求静态解。

Research on the movement law of charged particle in the channel of EDM.

电火花放电通道中带电粒子运动规律的研究。

The movement equation of droplets was set up and the expression about flying distance and vertical drop-down height variation with time of charged particle was obtained.

建立了荷电雾滴的运动方程，获得了喷雾粒子的飞行距离和垂直降落高度随时间变化的显式表达式。

Based on color information of the particle filter target tracking algorithms, to achieve the goal of tracking movement of objects.

详细说明：基于颜色信息的粒子滤波目标跟踪算法，实现了物体运动的目标跟踪。

In this paper, a "rigid bar relative movement model" was established to illustrate the traces of the helices in wire ropes. The angular speed of a moving particle of the model was relatives to curvature tensor to derive the curvature components and torsion of helices in multi-layer wire ropes. According to long and thin rod theory of Love and Yen-Chen's theoretical model considered the contact force and frictional force, the force-deformation or force-strain relative of wire in curved wire ropes subjected axial force is derived from the curvature components and curvature increment.

本研究改以刚杆相对运动模型，直接描述钢索中钢绞线轨迹，并且透过角速度类比曲率张量之概念，推导圆弧型多层钢索内部之钢铰线之曲率分量与扭率；之后再依据Love的细长杆理论，辅以Yen-Chen在考虑接触力及摩擦力下所修正之理论模型，以曲率及曲率增量来探讨圆弧型钢索受静态荷重作用下，钢绞线之受力与变形或应变关系。

This paper studies the main geometrical parameter such as angle, height, width, stagger and the upper width in dentation and trapezoid flow path, firstly, uses the single-phase numerical simulation of the computational fluid dynamics technique to analyse the influence of different geometrical parameter on discharge coefficient and flow state exponent of drip emitter. Secondly, uses the two-phases numerical simulation of CFD (1% sand content ) to analyse the influence of the above mentioned geometrical parameter on the contribution regulation of sand and anti-clogging performance. Thirdly, uses the PIV （ particle Tracking Velocimetry ） technique which can see the small-scale flow path to observe and test the trajectories and velocities of solid particles in labyrinth flow path, and analyses the basic factors which can influence the movement characteristic of solid particles and the flow state in flow path.

本文以齿形流道、梯形流道为主要研究对象，以流道转角、流道高，流道宽、偏差量及梯形流道上底宽为主要结构参数，首先应用 CFD 单相流数值模拟技术对不同结构参数灌水器流道水力性能进行模拟，分析了不同结构参数对流态指数和流量系数的影响，其次，应用 CFD 两相流（含沙量为1%）数值模拟技术分析了结构参数对含沙量分布规律和抗堵塞性能的影响，然后，应用 PIV 可视化测试方法测试了固体颗粒在流道内运行轨迹及速度，分析了影响固体颗粒运动特性及流道内流体流态的基本因素，最后，对上述流道结构形式通过模具加工及滴灌带试制，进行了标准化测试（ GB/T 17187-1997 农业灌溉设备滴头技术规范和试验方法与 ISO 标准 ISO /TC23 /SC18 /WG5N4短周期堵塞测试程序），测试结果验证了 CFD 模拟结果，并提出了迷宫结构流道灌水器的抗堵塞设计方法。

According to these movement equations, the solid particle random movement model in pumping station forebay is presented.

运用蒙特卡罗直接模拟方法模拟泥沙的三维运动，通过对大量泥沙颗粒运动的模拟，得出泵站前池水流泥沙浓度分布、泵站前池泥沙淤积形态。

The paper are studied dynamics characteristic of IR smoke under entironment to vacuum and micro-gravitation,based maths-model of thermodynamic onflow pervasion by smoke formed, the experiment proves that the movement speed of smoke gradually minishes along with hoist of vacuum.The process after smoke formed analysed ,which proves that its movement rule relates hilum of particle.

本文对真空和微重力环境下的红外烟幕进行了动力学特性研究，建立了烟幕形成过程中的热力湍流扩散数学模型，通过实验表明随著真空度的升高，烟幕的运动速度逐渐减小；并对烟幕形成后的过程进行了分析，结果表明其运动规律跟粒子的粒径有关。

The complex movement regularity of particle group is analysed by using no-linear mathematical tools and the recurrence formula of movement is obtained in intensifying screen.

应用非线性数学工具对物料在强化筛中的复杂运动规律性进行了分析，推导出颗粒在强化筛中运动的递推公式。

Firstly, it will consummate MDF fiber separation theory by using for reference of research progeny of paper making field and primarily set up math model of fiber particle's movement in refining plate and draw its movement tracks. At the same time, we use this theory to analysis and contrast four different dentations' refining plates and to validate rationality of this theory and to find the short of these refining plates.

首先，通过借鉴纸浆制备领域在此方面的研究成果，完善了MDF纤维分离理论，初步建立了纤维质点在磨盘间运动的数学模型，并做出其运动轨迹；同时，运用此理论对四种不同齿型的磨片进行了分析、对比，验证此理论的合理性并找出这四种磨片齿型的不足之处。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。