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[Other] CFDsimulation DL : 0: 利用CFD软件，采用雷诺应力模型分别计算了300型和250型水力旋流除砂器的内流场，得到了2种水力旋流除砂器的轴向、径向、切向速度及压强的分布曲线。通过对所得结果的分析，发现模拟结果基本符合旋流除砂器的运行规律。比较2种旋流除砂器的内流场，表明改进的300型水力旋流除砂器的结构及分离能力优于原来250型水力旋流除砂器，为水力旋流除砂器的优化设计和选型提供了可靠的设计依据。-use CFD software, Reynolds stress model used to calculate the respective 300-and 250-type sander hydrocyclones the flow field, been two kinds of hydrocyclones sander axial, radial and tangential velocity and pressure in the distribution curve. Based on the results of the analysis, the simulation results are consistent with the Cyclone sander operating rules. Comparing two kinds of Cyclone sander within the flow field, show improved 300 Desanding Hydrocyclones the structure and separation capacity than the original 250-hydrocyclone sander, Desanding Hydrocyclones for the optimum design and selection provided a reliable basis for the design.
Date : 2025-12-23 Size : 231kb User : 周铸
[Other] highprecisionstrapdownins DL : 0: 1.介绍了捷联惯性导航系统的基本工作原理，包括坐标系及其之间的关系，讨论了欧拉角、四元数等几种经典的解算方法，和计算周期的划分等。 2.讨论了等效转动矢量法及其衍生的一系列修正算法和优化算法，并作了精度分析和数字仿真，并对根据角增量提取角速率的方法进行了研究和验证。 3.研究了划船运动下，速度解算的误差补偿方法。对利用对偶原理从圆锥效应到划船效应的对应方法进行了讨论。 4.讨论了捷联式惯性导航系统的误差，对位置计算中的涡卷误差进行了推证。 -1. Introduced a strapdown inertial navigation system of the basic working principles, including the coordinate system and the relationship between the discussion of the Euler angle, quaternion, such as solving several classical methods, and calculation of the division cycle and so on. 2. Discussed the rotation vector method and its equivalent derived from a series of correction algorithm and optimization algorithm, and made the accuracy of analysis and digital simulation, and in accordance with angle increment of angular velocity extraction methods have been studied and verified. 3. Study of the rowing movement, the speed of solving the error compensation method. The use of principle of duality effect from the cone corresponding to the row effect method is discussed. 4. Discussed the strapdown inertial navigation system error, the calculation of the location of the scroll push the card error.
Date : 2025-12-23 Size : 2.23mb User : yangjx
[Other] Swarm_Intelligent_Systems DL : 0: 非常好的优化算法的书，详细介绍了蚁群算法和粒子群算法以及相关的matlab工具箱，讲了理论和应用给出了工具箱的下载地址。 Swarm intelligence is an innovative computational way to solve hard problems. In particular, particle swarm optimization, also commonly known as PSO, mimics the behavior of a swarm of insects or a school of fish. If one of the particle discovers a good path to food the rest of the swarm will be able to follow instantly even if they are far away in the swarm. Swarm behavior is modeled by particles in multidimensional space that have two characteristics: a position and a velocity. These particles wander around the hyperspace and remember the best position that they have discovered. They communicate good positions to each other and adjust their own position and velocity based on these good positions. -Optimization algorithm very good book, detailing the ant colony algorithm and particle swarm optimization and related matlab toolbox, talked about the theory and application are given toolbox download address. Swarm intelligence is an innovative computational way to solve hard problems. In particular, particle swarm optimization, also commonly known as PSO, mimics the behavior of a swarm of insects or a school of fish. If one of the particle discovers a good path to food the rest of the swarm will be able to follow instantly even if they are far away in the swarm. Swarm behavior is modeled by particles in multidimensional space that have two characteristics: a position and a velocity. These particles wander around the hyperspace and remember the best position that they have discovered. They communicate good positions to each other and adjust their own position and velocity based on these good positions.
Date : 2025-12-23 Size : 5.7mb User : dh
[Other] control-strategy DL : 0: Spider Robot 8-legs cooperative walking velocity control strategy based on enviromental information
Date : 2025-12-23 Size : 1.59mb User : joseph
[Other] gpstoolbox_v4 DL : 0: for gps tracking acquision satellite position and velocity finding
Date : 2025-12-23 Size : 65kb User : mmm
[Other] StudyofTransferAlignmentTechniquesinSDINS DL : 0: 摘要本论文研究了基于捷联惯导系统的几种不同的传递对准技术，其中包括速度匹配、姿态匹配、角速度匹配及速度加姿态匹配方法。 -Abstract This paper deals with several transfer alignment(TA) techniques of SDINS (Strap-Down Inertial Navigation System),including velocity matching, attitude matching, angular rate matching and velocity-plus-attitude matching approaches.
Date : 2025-12-23 Size : 2mb User : ffgh1
[Other] Fluent_technology_and_example DL : 0: 本书基于Fluent 6.2.16版本、Gambit 2.2.30版本和Tecplot 10.0版本，共13章。全书首先详细介绍了Fluent软件及其相关的理论知识，然后通过典型的实例来讲解Fluent在传热、传质及流场等实际工程中的应用方法和技巧，包括运动部件的速度场模拟、UDF和UDS的使用、并行计算的设置、计算区域的绘制和边界条件的定义、Tecplot的数据处理等。每个实例都有详细的说明与详尽的操作步骤，读者只要按照书中的指示与方法操作，即可完成一个具体问题的数值模拟与分析，进而逐步掌握利用Fluent进行流体流动数值模拟的基本方法。 -Fluent 6.2.16 Based on the book version, Gambit 2.2.30 version and the version of Tecplot 10.0, Chapter 13. First of all, the book detailed the Fluent software and its related theoretical knowledge, and then through a typical example to explain Fluent in heat transfer, mass transfer and flow field, such as practical engineering methods and techniques, including the moving parts of the velocity field simulation, UDF and the use of UDS, parallel computing setting, rendering the calculation region and the definition of boundary conditions, Tecplot' s data processing. Each have a detailed description of examples with detailed steps, readers as long as the book' s instructions and in accordance with the method of operation, to complete a specific question of the numerical simulation and analysis, and gradually master the use of Fluent for numerical simulation of fluid flow of the basic method .
Date : 2025-12-23 Size : 16.32mb User : 张志胜
[Other] Tactical_Missile_Design_1st_Ed DL : 0: This book is a complete guide to understanding the steps and processes to generate a missile design. This ranges from the materials to the velocity profiles.
Date : 2025-12-23 Size : 29.95mb User : Blake
[Other] JIRA_user_guide DL : 0: JIRA 用戶手冊，JIRA 是一套整合專案管理，工作規劃，BUG 追蹤的系統。-JIRA combines issue tracking, agile project management, customisable workflow, and a pluggable integration framework to increase the velocity of your software development team.
Date : 2025-12-23 Size : 1.04mb User : Shunyuan Chou
[Other] RF_Fundamentals DL : 0: 对微波传输线的相速、阻抗以及各种形式的传输线详细讲解，对布局走线和阻抗控制等很有好处啊。讲解S参数和设计放大器的基本原则等，努力学习中-Microwave transmission line on the phase velocity, impedance, and various forms of transmission lines explained in detail on the layout alignment and impedance control is very good ah. S parameters and explain the basic principles of amplifier design, to the study. . . .
Date : 2025-12-23 Size : 458kb User : transfer
[Other] Modelling-of--heat-and-mass-transfer-in-a-vertica DL : 0: In this article an exact solution has obtained to the problem of heat and mass transfer in a rotating vertical porous channel taking into account the effects of Hall current. A strong magnetic field of uniform strength is applied along the axis of rotation. The entire system rotates about the axis normal to the plates with a uniform angular velocity. The porous channel is subjected to a constant suction-injection velocity as well as uniform free stream velocity. The nonlinear and coupled governing equations are solved by perturbation technique. The analytical expressions for primary and secondary velocity components, temperature and concentration fields, and shear stresses are obtained. The effects of the magnetic field, rotation of the channel, buoyancy force, Hall current, injection-suction parameter, and the temperature oscillation frequency are described during the course of discussion. The results are presented graphically and discussed.
Date : 2025-12-23 Size : 871kb User : ahmed
[Other] MOD003 DL : 0: I like to create dynamic work that conveys a sense of velocity in its subjects, and the visual featured in this tutorial is a prime example of that style. In the following steps, I’ll let you in on one of the most effective and easily mastered
Date : 2025-12-23 Size : 104kb User : bigwert80
[Other] Velest32 DL : 0: velest is 1 D velocity modelling software
Date : 2025-12-23 Size : 575kb User : feri
[Other] SLIDING-MODE6 DL : 0: The super-twisting second-order sliding-mode algorithm is modified in order to design a velocity observer for uncertain mechanical systems. The finite time convergence of the observer is proved. Thus, the observer can be designed independently of the controller. A discrete version of the observer is considered and the corresponding accuracy is estimated.
Date : 2025-12-23 Size : 155kb User : nader
[Other] 5 DL : 0: 运动载体的定位与导航一般应用Kalman滤波算法。可靠的Kalman滤波算法要求有可靠的函数模型、随机模型以及合理的估计方法。实际情况中运动载体一般难以确保规则运动，因而精确的函数模型的构造十分困难。近年来，有不少学者对机动载体运动模型进行了讨论，所属内容各具特点，建立的各种模型包括微分多项式模型、常速度模型、常加速度模型、时间相关模型，半马尔柯夫模型、 Noval统计模型及机动载体的“当前”统计模型-Moving vehicle positioning and navigation general application of the Kalman filter algorithm. Kalman filter algorithm requires a reliable function model, a stochastic model, as well as a reasonable estimation method. Moving carrier in the actual situation is generally difficult to ensure a regular motion, and thus the the precise function model structure is very difficult. In recent years, many scholars have discussed the movement of the motor carrier model, each with distinct characteristics of their respective content, establish various models including the differential polynomial model, constant velocity model, constant acceleration model, time-dependent model, semi-Markov model, Noval statistical model and motor carrier " current" statistical model
Date : 2025-12-23 Size : 261kb User : 长沙
[Other] Wind-turbine-blade-design DL : 0: 本文根据我国西北地区的风频风能曲线，用最优设计攻角沿叶片轴线的非线性分布修正了传统Wilson算法，对大型水平轴风力机叶片的气动性能进行了优化设计。该优化设计利用Matlab优化工具箱，优化速度干涉因子的迭代计算，可提高计算效率。从结构及加工工艺角度修正翼型，考虑了多翼型和变攻角等因素对叶片外形优化的影响。具体对1．2MW风力发电机组叶片外形的气动性能进行了计算和优化设计，所获得的气动性能结果表明了该优化设计的有效性和可行性。相关结果可为风力机叶片外形设计提供参考。-Based in Northwest China wind band wind energy curve, the non-linear distribution of the optimum design angle of attack along the blade axis Fixed Wilson algorithm, the optimal design of large horizontal axis wind turbine blade aerodynamic performance. The optimal design using Matlab optimization toolbox, optimizing the iterative calculation of the velocity interferometer factor, can improve the computational efficiency. Airfoil from the structure and processing angle correction, taking into account the impact of multi-airfoil and change the angle of attack and other factors on the blade shape optimization. 1.2MW wind turbine blade profile aerodynamic performance calculation and optimization design, the obtained aerodynamic performance results show that the effectiveness and feasibility of the optimal design. Relevant results for wind turbine blade shape design reference.
Date : 2025-12-23 Size : 2.19mb User : chentiange
[Other] zc_DeJong_macpso DL : 0: 在普通粒子群优化的基础上引入环境概念，在粒子进行速度及位置的更新之前，先进行粒子与周围环境的比较，选取较优的粒子，从而提高精度-In normal particle swarm optimization is introduced on the basis of environmental concept, particle velocity and position in the update before, first compare particles and the surrounding environment, select the optimal particle, thus improve the precision
Date : 2025-12-23 Size : 2kb User : 李倩
[Other] velocity_api DL : 0: Velocity模板使用指南中文版，超详细适合初学者下载，提供重要参考-Velocity Template User Guide Chinese version, suitable for beginners to download super detailed, providing an important reference
Date : 2025-12-23 Size : 469kb User : luoqingquan
[Other] fundamentals_of_hot_wire_anemometry DL : 0: This 1985 book provides a summary of the theory and practice of the hot wire anemometer, an instrument used to measure the speed of fluid flow. Many techniques and uses of this instrument are discussed in detail. The author considers such topics as probe fouling, probe design, and circuit design, as well as the thermodynamics of heated wires and thin films. He also discusses measurements of turbulence, shear flows, vorticity, temperature, combined temperature and velocity, two-phase flows, and compressible flows for measurements in air, water, mercury, blood, glycerine, oil, luminous gases, and polymer solutions. The book concludes with a section on the pulsed wire anemometer and other wake-sensing anemometers. This book assumes a familiarity with basic fluid mechanics. However, mathematical descriptions occur near the end of each chapter thus allowing those with a limited mathematical background to make use of the practical details at the beginning of each chapte
Date : 2025-12-23 Size : 36kb User : hoang_px
[Other] velocity-estimation DL : 0: 车速估计的重要参考文献，包括人工智能法、卡尔曼滤波、观测器法等-Important Chinese references of velocity estimation, like artificial intelligence, observer, Kalman
Date : 2025-12-23 Size : 16.64mb User :

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