Aimed at the conflicts of high speed, high precision and low noise, the improved design for structure joint ways of the motor and variable pump was proposed. 针对高速度、高精度和低噪声之间的矛盾,提出了对电机和泵联接方式的结构改进设计。
Joint Temperature of Variable Cross-section Portal Rigid Frame under Local Fire 变截面门式刚架梁连接节点在局部火灾下的温度场研究
Generation Reason Analysis of Cold Crack in Welding Joint of Automobile Variable Speed Control Handle 汽车变速操纵杆焊接接头冷裂纹产生原因分析
A fully digital AC servo system with PMSM has been proposed in this paper, that is suitable for the joint drive of industry robots, as will as for variable military and factory automation equipments. 研究设计的永磁同步电动机全数字化交流伺服系统不仅适用于工业机器人关节驱动,而且适用于多种军事设备和工厂自动化设备。
First, the mathematic model of joint position servo control system is deduced, then, the sliding mode variable structure control rule is obtained, finally experiment study is carried through. 首先推导了下位机关节位置伺服控制系统的数学模型,然后推导了在上位机上实现的滑模变结构控制率,并进行了实验研究。
A novel method of tomography image processing is presented for polymer configuration of extrusion, according to the relation of joint entropy, condition entropy, mean mutual information and mutual information chain rule for multidimension random variable in the theory of optics information. 依据光学信息论中的多维随机变量的联合熵、条件熵、平均互信息之间关系和互信息的链式法则,提出了面向挤出中聚合物形态的层析图像处理方法。
The paper introduces the concept of sequential statistical variable, computes the distribution of sequential statistical variable by the relation between the joint distribution of multivariate random variable and its marginal distribution. Finally the example is given to illustrate the method. 介绍了顺序统计量的概念,并利用多元随机变量的联合分布与边缘分布之间关系,求出顺序统计量的分布,并通过实例加以描述。
Joint Source/ Channel Coding Based on Vector Quantization and Variable Length Codes 基于矢量量化和可变长编码的联合信源信道编码
Necessity for fatigue design of bolted joint in a steel structure is discussed in this paper, method of load calculation and fatigue design of bolted joint bearing variable axial load is introduced, and an example analysis is provided. 本文论述了金属结构中螺栓联接抗疲劳设计的必要性,介绍了受轴向变载荷作用的螺栓联接载荷计算及疲劳设计的方法,并用实例进行了分析论证。
And the Jacobian and inverse Jacobian of the manipulator is got by analyzing the relationship between the end speed and the joint variable speed. 最后根据机械手末端速度与关节变量速度之间关系分析,得出机械手的雅可比和逆雅可比。
While setting up mathematics model of kinematics, inverse problem against kinematics is to give out the position and pose of manipulator based on the base coordinates and solve its joint variable. 在建立运动学数学模型时,运动学逆问题是给出操作器相对于基坐标系的位置和姿态,求解其关节变量。
In addition, this paper also proved that the joint cone weakly efficient solution sets are stable in the sense of continuance with ( respect) to the variable perturbation and order perturbation respectively on the contents of Baire category when the perturbation variables form Baire space. 此外,当扰动变量形成Baire空间时,分别证明了在Baire分类意义下变量扰动和序扰动的联合锥弱有效解集在连续意义下的稳定性。
In order to solve this problem, this paper introduces a method and the joint variable. And the relationship between the new joint variable and the joint variable in the D-H parameter is also given and redefined the form of robot pose. 以MOVEMASTER机器人为对象,利用臂腕分离的方法并重新定义了关节变量,确定了新定义的关节变量与D-H参数中关节变量的关系使变换矩阵简化。
Finally each joint variable in finishing work are calculated. 最后求出精加工椭球时各关节变量值。
A joint source/ channel coding scheme based on Variable Length Codes ( VLC) over noisy channel was proposed. This technique utilizes the residual redundancy at the output of the source coder to provide an error protection for the image transmission over the noisy channel. 提出了一个在噪声信道中对可变长信源编码码流传输提供有效差错保护的联合信源信道编码方案,利用信源编码器输出中的残留冗余为传输码流提供差错保护。
Afterward, researches have been done into the precision of the whole measuring system from the joint variable and constant parameter of the robot and the influence of the temperature. 随后从测量机器人的关节变量、常值参数和温度影响等方面对整个测量系统的精度进行研究。
The nonlinear mapping from the joint variable space to the operation variable space for the platform is accomplished with BP neural network after training and learning. 探讨了人工神经网络在并联机器人机构位置正解求解中的应用.采用BP网络,利用位置逆解结果,通过训练学习,实现操作手从关节变量空间到工作变量空间的非线性映射;
And utilize Matlab interface development environment to design kinematics of the robot to calculate interfaces. Image, ocular reflection hydraulic turbine repair special-purpose robot every joint variable and end location appearance relation of matrix. 并利用Matlab界面开发环境设计机器人运动学计算界面,更加形象、直观的反映了水轮机修复专用机器人各关节变量与末端位姿矩阵之间的关系。
While the path passing through singularities, joint variable can hardly be presented as analytical functions of task space defined parameters, which causes difficulties given to conventional trajectory planning. 当路径穿越奇异点时,由于关节位移难以表示为任务空间路径参数的解析函数,给常规的路径参数化方法带来困难。
On limiting joint distributions of order statistics with variable ranks from Stationary Sequences 平稳随机序列的变秩顺序统计量的联合渐近分布
Given a joint probability distribution between a random variable X and an observed relevant variable Y, IB method is able to find the best tradeoff between accuracy and compression when clustering the variable X, and further it will get the internal law of data model effectively. 若给定源变量与相关变量的联合概率分布,IB方法在对源变量进行压缩的同时,可使得压缩变量最大化地保存相关变量的信息,进而有效的发现数据集内所隐含的内在模式。
Combining the VLC with turbo codes, a new hybrid concatenated joint source-channel coding model is proposed, which is named as variable length turbo codes. 将可变长编码与Turbo编码相结合,提出了一种新型的信源信道混合级联编码模型,称为可变长Turbo码方法。
The simulation function contain: ( 1) it can create the graphic 6 DOF serial robot by inputting the D-H parameter, can drive the graphic robot by means of changing the joint variable. 仿真功能包括:(1)实现输入6自由度串联机器人的D-H参数建立机器人的三维模型,通过改变机器人关节变量驱动机器人运动。
By giving the joint probability distribution p ( x, y) between a source variable X and its relevant variables Y, the Information Bottleneck method can seek a compression variable T of X and effectively find patterns hidden in data. IB方法通过给定源变量X和它的相关变量Y的联合概率分布p(x,y),来寻求X的压缩变量T,从而有效地发现数据间隐含的模式。