- 更多网络例句与不用于结构上的相关的网络例句 [注：此内容来源于网络，仅供参考]
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Based on the analysis of the mechanism of robot manipulators, a trajectory tracking controlling research model is first built up with ADAMS, and its mathematical model is formulated through the study of robot kinematics and dynamics. After the modeling errors are analyzed in practical robotic systems, a conception of centralized error is brought forward according to the theory of weighting functions. In the case of modeling errors' exist, the robotic uncertain model is derived by introducing an auxiliary control variable into inverse dynamic analysis. The control strategy of robust exponential convergence is applied to the robotic uncertain model, the applicable conditions and the applicable controller with this application are presented. The stable control effect under three main model uncertainties (parametric errors, joint disturbs, joint frictions) are systematically studied on the previously built research model. The problems of robust exponential convergence controller which often results in unstable output and so produces a large relative error when the input trajectory is in a small range are resolved by adjusting the control parameters based on the controller's structure.
本文在机械手的机械结构分析基础上，利用ADAMS建立了用于机械手轨线跟踪控制研究的机械手模型；通过对机器人运动学和动力学问题的研究，建立了机械手研究的数学模型；分析了机器人系统中模型误差的主要来源，根据加权函数法分析，提出了模型集中误差的概念；在存有模型误差的情况下，采用逆动力学结构并引入辅助控制量，由机器人误差模型推导了机器人非确定性模型；提出了采用鲁棒指数收敛法对上述机器人非确定性模型进行鲁棒镇定的控制策略，并给出了对机器人进行鲁棒指数收敛控制时系统不确定因素应满足的匹配条件；针对机械手研究模型，深入研究了鲁棒指数收敛控制器对机器人系统中常见的模型参数误差、关节扰动、关节摩擦等不确定因素的镇定控制效果；针对鲁棒指数收敛控制器易产生控制量振荡的问题以及在小范围内系统轨线跟踪的稳态误差过大问题，本文分别提出了基于控制器结构的控制参数调整法和基于轨线跟踪范围大小的控制参数分段切换法。
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The page used to view a specific issue is a nodeless page, and it is not included in the site structure; we simply redirect to this page from our module, and Cuyahoga injects the page code automatically.
用于查看特定问题的网页是无节点网页上，而且不包括该网站的结构，我们简单地重定向到这个网页从我们的模块，凯霍加注入的页面代码自动。
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Now the controllability theory in linear systems over the field R of real numbers has been heavily studied. This theory is efficacious for analyzing the characters which are determined by the value of physical parameters and system structure, nevertheless a practical system has a definite structure and has approximate, even unknown parameter sometimes because of a limit to experiment conditions, or a limit to making technology, the errors of observation. It is inconvenience for a linear system over the field R of real numbers to analyze the structure characters of a physical system, such as structural controllability.
目前，实数域上的系统的完全能控性理论研究已经很成熟了，它用于分析系统结构和物理参量的值共同决定的那些性能是有效的，然而，在工程中，由于实验条件或者制造工艺上的限制和观测上的误差，以及人为地对数据的近似处理，一个实际系统往往其结构是确定的，而参数只是近似的甚至未知的，实数域上的系统不便于分析物理系统的结构性质，如结构能控性。
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Upon that, electron and graviton form the vortex relation can on the polymer initial stage only, at this time ,degree of polymerization is smaller, leavings force ling are much..
总体上，所有粒子都受到引力的作用，任何一枚粒子，它向空间发出的引力线并非仅仅着用于一个对象，引力子对外，仅形成引力，斥力子对外既形成斥力也形成引力，质子、中子是"微回旋星系"，它们以"星系"为单位在原子内部回旋，原子外层电子的数量要比现在认为的多上亿倍，原子结构是由这些成员力的关系和能量不灭规律决定的。
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Load balancing mechanism is an approach to improve the overall handling capacity of the cluster, but the unreasonable structure of the clusters tends to limit the efficiency of load balancing mechanism. Incoordination between the two limits the performance of system hardware and software.
负载均衡机制是一种用于提高集群整体处理能力的方法，但是不合理的集群结构往往会影响负载均衡机制的效率，两者的不协调在一定程度上限制了系统性能的体现。
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Schwartz (1974), a simplified method to calculate higher order waves is developed by using mapping transformation method and optimization algorithm in this paper.
该方法可以方便的用于海洋结构物在波浪作用下的运动与荷载计算，具有工程上可以接受的精度。当前，海洋结构物波浪荷载的计算，大多限于线性波理论及低阶的非线性波理论，有时是不能满足工程需要的。
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In this chapter, three kinds of target recognition methods are performed, which are:①Target recognition method based on the description of polarization parameter plane. The echo polarization states of target are projected onto the polarization state plane described by the ellipticity ε and the tilt angle τ of the polarization ellipse, the change of parameter following ferquency becomes the chart. According to the changing trait of the chart, the multidimensional polarization feature space of target has been contructed. Furthermore, a series of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.②Target recognition method based on the description of Poincare polarization sphere. The echo polarization states of target expressed by Stokes vector are projected onto the Poincare polarization sphere. The conception of polarization ferquency stability, which is used in describing the dynamic distribution characteristics of the target echo polarization states on Poincare polarization sphere, has been defined. A group of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.③Target recognition method based on the description of frequency sensitivity. In accordance with the conception of the polarization state distance defined on Poincare polarization sphere, the frequency sensibility of the physical structure property of target has been investigated, the frequency distribution feature curves in PSD domain are obtained, and targets'features are extracted by means of the curve-fitting method with Least Square Criterion.
这章具体研究了基于三种极化散射特性描述的相应的目标识别方法：①基于极化参数平面描述的目标识别方法，将目标回波极化状态投影到以极化椭圆参数，即椭圆率角ε和倾角τ表征的极化状态平面上，参数随观测频率的变化就形成了图，根据图的变化特点构造了目标的多维极化特征空间，并提取了不敏感目标姿态变化的极化特征参数组来设计目标的识别器结构；②基于Poincare极化球面描述的目标识别方法，采用Stokes矢量表征目标回波的极化状态，并将其投影到描述极化状态的Poincare极化球面上，定义了极化频率稳定度的概念用以刻画目标回波极化状态在Poincare极化球面上的动态分布信息，提取了准方位不变性的目标极化特征，最后设计了目标的识别器结构；③基于频率敏感性描述的目标识别方法，通过在Poincare极化球面上所定义的极化状态距离的概念，研究的是复杂目标物理结构特性对探测信号频率的敏感程度问题，获得了在极化状态距离下的频率分布特性曲线，采用最小二乘估计曲线拟合方法，它既用于极化特征的降维，同时又直接将拟合参数作为目标的分类特征。
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In order to solve the inconvenience of in-situ welding of hot gas conduit pipe pressure shell and eliminate the undetermined factors in safety evaluation, the present invention proposes one connection structure for hot gas conduit pipe pressure shell, and the structure includes hot gas conduit pipe pressure shell, movable loose flange, double-headed screw bolt and nut for fixing the hot gas conduit pipe pressure shell onto the reactor pressure shell and the steam generator pressure shell.
为了解决热气导管压力壳现场焊接带来的各种不便和安全评价时的不确定因素，本发明提出了一种热气导管压力壳连接结构，包括热气导管压力壳、用于固定热气导管压力壳至反应堆压力壳和蒸汽发生器压力壳的活套法兰、双头螺柱及螺母；第一活套法兰压在热气导管压力壳一端的凸缘上，并通过第一双头螺柱及第一螺母使得热气导管压力壳的一端与反应堆压力壳上的法兰紧密联结；第二活套法兰压在热气导管压力壳另一端的凸缘上，并通过第二双头螺柱及第二螺母使得热气导管压力壳另一端与蒸汽发生器压力壳上的法兰紧密联结。
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The high pressure jet grouting was used in the foundation for a Sewage Treatment Projict in Shanghai Fish Processing Factory, to reinforce it and as a surrounding protection structure of deep foundation, High pressure jet grouting is rarely used in large architectural projects and hydraulic structures.
上海鱼品厂污水处理工程地基采用高压喷射注浆法加固，並作为深基坑的围护结构，用于大面积建筑工程和水工构筑物的尚不多见。
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The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.
本文研究的主要内容如下：通过大量的计算、分析和对比，总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同，为深入了解异形截面柱的特点提供必要的基本概念和数据；通过大量的弹性及弹塑性计算分析，在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下，在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律，并在此基础上总结归纳出异形柱结构的最大适用高度规定，可用于规程，以便于在确定方案时起到宏观控制的作用；对肢长与肢厚比在4～5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨，提出初步的设计方法；通过对典型工程的弹塑性动力时程分析，检验异形柱结构的薄弱层及屈服、破坏、倒塌机制，以达到建筑物大震不倒的抗震设防要求；通过理论分析，推导出异形柱结构自振周期，以及适宜自振周期、适宜刚度的工程实用简化计算公式，为经济、安全、合理地确定结构方案提供简便实用的方法；在本文理论分析、计算以及大量的研究成果基础上，总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容，并在此基础上提出异形柱结构的抗震设计建议。
- 更多网络解释与不用于结构上的相关的网络解释 [注：此内容来源于网络，仅供参考]
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snoop：探听
ptype_all是一个packet_type结构的链表,用于探听(snoop)从任意网络设备上接收到的所有的数据报文(其type为ETH_P_ALL,即处理所有类型的包),通常不使用.