实际速度
- 与 实际速度 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The control realized the function such as setting up transfusion speed through the keyboard and dynamic state display.
本装置可以通过键盘实时设置输液速度,并且动态显示液体代码、设定的和实际的点滴速度。
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Firstly, several kinds of schemes were proposed according to the design demand. The best scheme was chosen after analyzing and comparing the schemes. The robot's structure was designed with Pro/Engineer and AutoCAD software. Secondly, the kinematics analysis conducted, coordinate transformation matrix using D-H method was set up, and the kinematics equation direct solution and inverse solution was deduced. The manipulative interface about the kinematics equation direct solution and inverse solution was completed with VC++ and the velocity Jacobian of displacement matrix was constructed using differential transform method. In the process of the trajectory planning based on robot's kinematics analysis, I propone a method by which we can get middle nodal point with normalizing factor in order to simplify our searching for these middle nodal points. In addition, I give these middle nodal points with actual physics signification. For eliminating contradiction between real-time and accuracy, I bring forward separately limit of error and reversal interpolation method. For decreasing calculation quantity, we resort to tri-spline interpolation in the articulation space.We analyse the work range of the robot by resorting to graphic means.
首先,作者针对机器人的设计要求提出了多个方案,对其进行分析比较后,选择其中最优的方案后用Pro/Engineer和AutoCAD软件进行了机器人模型结构设计;其次,进行了运动学分析,用D-H方法建立了坐标变换矩阵,推算了运动方程的正、逆解,运用VC++制作了正、逆运动学求解的求解界面;并且用微分变换法推导了速度雅可比矩阵;在基于机器人的运动学的轨迹规划中,通过在操作空间的规划,提出了归一化因子来求解中间结点,通过它可以使求解中间结点变得更简单,并且赋予这些中间结点实际的物理含义,对于规划中精确性和实时性的矛盾,提出了以误差极限法和反向插值法来解决的方法;为了减少规划过程中计算量,在关节空间进行三次样条插值;然后借助图解法进行工作空间分析,作出了实际工作空间的轴剖图。
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Based on the dual-beam interference principle and white light interference feature, this dissertation designs the SWLI surface 3D topography measuring system and analyzes the principle and characters different from that of traditional monochromatic light interference. According to different descriptions of the white light interference feature, the optimal interference point extracting algorithms are classified, analyzed and compared in detail. In the light of the design rule of improving measuring precision and speed simultaneously, two new types of algorithms, named Feature Matching algorithm and Intensity Contrast Moving Window algorithm, are designed to acquire good results according to practical conditions.
基于双光束干涉原理及白光干涉特性,本文设计了扫描白光干涉法表面三维形貌测量系统,分析了该方法区别于传统单色光干涉测量的测量原理及特点,根据对白光干涉特征不同的描述方式对最佳干涉点提取算法进行了分类、分析与比较,并在提高测量精度与测量速度设计原则的指导下,根据测量系统的实际条件设计了两种新的算法:特征匹配法和对比度移窗法,在实际测量中达到了比较好的测量效果。
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In order to speed up the convergence speed, the each one step of the Landwber iteration is discomposed into the matrix computation and solution and a quick iteration scheme is given for the matrix computation. The relevant accelerated algorithm is given too. Numerical example proves that the accelerated algorithm can quicken convergence speed, reduce the calculation burden, and overcome the obstacle of application of Landweber method of iterated regularization.
为了加快Landweber迭代收敛速度,将每一步Landweber迭代分解为矩阵计算和求解,对矩阵计算部分设计了一种快速迭代格式,并给出了相应的加速算法,通过数值实验验证了这种算法能够大大加快收敛速度,有效的减少计算量,解决了Landweber迭代正则化方法在实际应用中的障碍。
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But in the practical engineering problems, the lubricant entrainment sometimes corresponds with the major axis of the ellipse, and is sometimes at an angle to the minor axis.
但在实际工程问题中,有时卷吸速度方向与接触椭圆长轴相重合,有时卷吸速度方向与接触椭圆的对称轴成一夹角。
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Therefore,a series studies of ice-pier vibration are performed from different aspects in this paper.The main work of this his thesis is summarized as follows:(1) Ice response spectra is proposed based on the idea of a seismic response spectra analysis of str .. uctures.Firstly,ice response spectra on the basis of power spectra density function is established;Secondly,based on the assumption of quadratic parabolic interpolation method,the nonlinear interpolation analysis method of ice response spectra is studied from both theoretical and practical points of view,and the successive computation formulas including ice displacement,velocity and acceleration response spectrum are deduced by Duhamel integral.Furthermore,to analyze the effectivity and applicability of the method, the real temporal curves of ice pressure are used to be studied.The results show that the presented method is more convenient and accurate to study the structural response induced by ice force,also it can be effectively applied in the design of ice resistance.
鉴于此,本文针对冰激桥墩结构振动问题从不同方面展开了一系列与之相关的研究,主要研究内容如下:(1)根据结构抗震反应分析思想提出了冰振反应谱,首先建立了基于功率谱密度函数的冰振反应谱;其次借鉴地震反应谱内插法的思想从理论和实际观点出发,假定在等距离微小时间间隔内冰荷载按二次抛物线规律变化,由Duhamel积分推导出冰振位移、速度以及加速度反应谱的一系列连锁公式,建立了基于非线性内插法的冰振反应谱,并利用实际冰压力时程曲线进行了冰振反应谱数值分析,为以后冰激结构振动的研究提供一种方便、简捷、精确的分析方法,也能够将其有效地应用到结构的抗冰计算中。
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The first is a smaller, primary wave that travels at seven kilometers per second. The second wave, the one that can cause damage, moves at a slower four kilometers per second.
地震实际上会产生两种波,第一种是以每秒7公里传播的较小的初级波;第二种波则是能造成毁坏的波,以每秒4公里的速度传播,速度较慢。
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Some key part is ameliorated to meet the demands of working. This thesis mainly includes:(1) Analysing the working principle of the spring operateing mechanism, expatiating the character of the mechanism;(2) With the design aim of the spring operating mechanism, accomplishing the design of ZW□-12/630-20 outdoor HV vacuum breaker based on the systemic design theory of the spring operating mechanism, which includes spring mechanism of open-close switch; cam mechanism based on the principle of power balance; buckle-off mechanism with force-minished device; ratchet wheel mechanism with number-increased detent;(3) In the design on the spring operating mechanism for the outdoor vacuum breaker, using the air cushion device with speed controller to ensure the steady working of the spring operating mechanism;(4) Accoding the problem of daily maintenance for HV circuitbreaker, giving some effective steps of daily maintenance.
论文工作主要包括以下几个方面:(1)从真空断路器弹簧操动机构的功能原理出发,详细分析了该机构的工作原理,阐述了机构工作的基本特性;(2)根据工程实际提出了真空断路器弹簧操动机构的设计目标,在系统分析弹簧操动机构设计理论的基础上,完成了ZW□-12/630-20型户外真空断路器弹簧操动机构的设计工作,其中包括真空断路器弹簧操动机构的分合闸弹簧机构的设计;以输出力特性曲线设计机构理论演化出的功率平衡原则为基础的凸轮机构的设计;带有减力机构的滚动摩擦扣结方式的脱扣机构设计;根据实际情况增加了棘爪数量的棘轮机构设计;(3)在真空断路器弹簧操动机构的设计中,引入了速度控制模式空气缓冲器,对惯性负载起到了良好的自动缓冲效果,从而保证了真空断路器弹簧操动机构稳定、有效地运行,保证了真空断路器的动作质量;(4)针对目前真空断路器运行过程中存在的问题,提出了有效的日常维护措施。
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The blending expert system has been put into service in an alumina smeltery, whose actual running results show that the system implements the computation of blending ratio fast and efficiently, improves the quality of pulp and stabilizes industrial production.
在系统投入试运行后,对实际反馈的配料数据进行分析,实际结果证明配料专家系统配比计算速度快、效率高,既提高了生料浆质量,又稳定了生产。
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For an arbitrarily time-varying system, a series of hankel matrices are established directly from the combined measurements of displacement, velocity and acceleration together with the input excitations, which have been obtained through only one experiment of the system. The varying equivalent state space system matrices of structures at each moment are then identified by singular value decomposition using the forced responses and input forces.
该方法以任意组合的位移、速度、加速度受迫响应信号为测量信息,仅利用一组输入、输出信号组成Hankel矩阵,通过奇异值分解的方法识别出等效状态的系统矩阵,然后运用推导出来的通用时变系统的转换矩阵,将等效状态系统矩阵转换成为实际物理状态下的系统矩阵,从而识别出实际系统的质量、刚度、阻尼矩阵。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。