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System of coordinates and the transfer of axes are introduced to analyze the force and the moment of force. Based on this, the dynamic equation and the kinematics equation are built. Combining with the mass changes and the control relationship, the kinematics model of missile is completely set up. According to the subject studied in this thesis, and based on some assumptions, the model of Bank-to-Turn missile is built.

引入了研究导弹制导控制系统常用的坐标系及各坐标系之间的关系;分析了作用在导弹上的力与力矩,在此基础上建立了导弹动力学方程和运动学方程,结合导弹质量变化和对导弹的操纵关系,建立了空空导弹的运动学模型;针对本文的研究对象,在一定假设的基础上建立了倾斜转弯导弹的数学模型。

The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

AWG光信号传输特性与相关参数的分析,为进一步优化设计AWG及提高其性能提供了理论依据,而优化设计计算数值方法解决了AWG优化设计计算的复杂问题,为进一步建立AWG的计算机设计系统提供了基础;AWG光信号处理的特性分析,提出了AWG应用的新领域,为光信号的傅立叶变换、串并传输、循环移位、矩阵变换、微分处理等提供了一条途径;波长传输矩阵变换关系的建立,不仅得到了确定多路AWG每路信号从输入端口到输出端口的准确输出位置的方法,而且在分析应用AWG实现复杂的光通信网络路由的连接、特别在设计分插复用器和交叉连接器等网络节点时有重要的作用,能有效而准确地确定波长的路由关系,为实现节点波长传输路由的监控和管理提供有效手段;基于AWG的OXC结构和波长路由的确定为实现OXC技术、特别是多路多波长的OXC和光网络的智能节点技术提供了有效的方法;控制平面的特征、路由器、流量工程、程序及改进的波长路由算法的研究实现了基于GMPLS的OXC光传送网络的控制平面,为建立自动交换光网路提供了一定的基础;时频分析可以更直观和更清晰地描述脉冲信号在单模光纤中传输色散和能量的变化,为色散积累和色散补偿提供有效的分析参数。

In this paper, the primary problems belong to the current method of reliabilityevaluation of existing buildings are pointed out.

本文首先指出了现行可靠性评定方法中存在的主要问题,针对这些问题,在动态可靠度理论的基础上,依据前人的研究成果,建立了综合考虑多种因素的抗力随机过程模型,建立了考虑再服役期因素的荷载模型,给出了以优化理论为基础的可靠指标计算方法,并在综合考虑现行评估的原则和可靠度理论水平的基础上,给出了依据构件可靠指标进行等级划分,进而对结构体系可靠度作出评价的途径,提出一种新的现有结构可靠性评定的方法。

Theequivalence percolation resistance law is accurate enough to be used in productivitycalculation of horizontal well pattern.(3) Productivity of mixed well pattern of horizontalwell or multilateral horizontal well and vertical well is constructed and formulae are simpleenough to be used in the oilfield. The patterns include 5-spot pattern,7-spot pattern and9-spot pattern.(4) Productivity formula of united rectangular well pattern of horizontaland vertical wells is constructed. By this formula, the calculation results show that fora horizontal well length, there is a shape factor at which the productivity of the patternis biggest. So optimum method of the well pattern is proposed.(5) A new concept ofdimensionless length of horizontal well is advanced and the relationship of optimum shapefactor of the rectangular well pattern against dimensionless length of horizontal well ispresented. The influences of length of the horizontal well, area of the well pattern unitand the thickness of reservior are concerned.

利用该公式计算表明:当水平井长度一定时,存在一个最优井网形状,使得水平井的产能最大,在此基础上提出了水平井井网的优化方法;(5)提出了水平井无因次长度的概念,给出了联合井网最优井网形状因子与水平井无因次长度的关系式,并对水平井长度、油层厚度及井网面积对产能的影响进行了分析;(6)推导出了一无限水平井井排在XY 平面内势的解析解,为不同水平井整体开发井网或水平井和直井井网整体开发渗流理论的研究奠定了理论基础;(7)建立了交错式水平井与直井整体开发渗流理论,给出了拟三维条件下井网产能的精确解析解及该井网最优井网形状因子与水平井无因次长度的关系,并对产能的影响因素进行了分析;(8)建立了水平井与水平井正排列井网、交错排列井网条件下渗流理论及井网产能在拟三维条件下的精确解析解,给出了交错井网条件下最优井网形状因子与水平井无因次长度的关系,通过与正方形井网对比,说明优化井网可大幅度提高开采效果;(9)建立了分支水平井和直井面积井网水油两相非活塞驱替条件下渗流问题的解析解,给出了见水前后无因次产量与无因次时间的关系式以及见水时间等。

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状;然后,将供应链系统作为一个复杂系统来分析,确定了系统运行过程中所经历的状态,通过引入补充变量的方法,建立了用偏微分方程组描述的分布参数系统模型,用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式,证明了系统解存在的唯一性、非负性和指数阶渐近稳定性;并借助Matlab工具,利用二阶、三阶辛普森积分方程模拟系统解的性态,并给出系统动态解的仿真图;本文又对上述系统增加了系统可能失效状态和优化调整状态,并在此基础上建立了用偏微分方程组描述的分布参数系统模型,同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究,得到系统动态解和稳态解的数学表达式,证明了系统动态解存在的唯一性、非负性及渐近稳定性,为进一步分析和研究供应链优化奠定了理论基础。

At first, this paper makes a systematic exposition of the content of supply-chain, supply-chain-management, purchasing in supply chain and purchasing management in supply chain environment and builds the theoretical foundation of this paper. Then, Make out the material classification from the acquirability of supply market and essentiality of material. Then based on this conclusion bring forward the proper purchasing strategies for Wuxi Weifu Group Co., Ltd. such as win-win strategy, ensure supply strategy, minimize cost strategy and minimize managerial cost strategy. Then sets up evaluated indexes system of short-term-efficiency-suppliers and long-term-efficiency-suppliers, applying the Fuzzy-evaluation method to evaluate suppliers. At the end of this paper, taking Wuxi Weifu Group Co., Ltd. as a case, comparing the status of its purchasing and supplier management, it puts forward some improvement suggestions to the existing problems in light of the above analysis such as the establishment and improvement of management information system, reengineering of purchasing organization and process, establishment of evaluated indexes system and implement of Just-in-time purchase.

本文首先系统的阐述供应链及供应链管理,供应链管理下的采购和采购管理的内容,从而构筑了本文的理论基础;继而,从物料采购的市场可得性和物料的重要性两种维度将物料分为战略性物料、瓶颈物料、重要物料、一般物料,在此基础上结合无锡威孚公司产品提出了相应的双赢、保障供应、最低成本、管理成本最小等采购策略;接着,建立了短/长期效率型供应商综合评价的指标体系;运用模糊综合评判方法对供应商的选择与评价体系进行了研究;最后,以无锡威孚集团有限公司为案例进行研究,结合前述的理论框架,通过对其采购和供应商管理现状的比较分析,找出不足之处,提出了改进建议和设想,如管理信息系统的建立和完善、采购组织和流程的重构、供应商选择评价体系的建立、即时制采购的实施等方案。

It introduces a kind of novel loading test system, based on the operation principle of damper. this loading system is operated by the driving motor. it realizes the loading, in that the damper has a negative drive force that puts on the motor. Based on the ordinary electromagnetic damper, the thesis presents a novel hybrid excitation electromagnetic damper which has adjustable work characteristic, analyses the working principle and structural feature of the electromagnetic damper, deduces the formulas to calculate the eddy current density through the Electromagnetic theory, analyses the distribution of the eddy current in the cotyloid rotor, and also studies the method of calculating the damp torque, establishes the mathematical model of the electromagnetic damper, analyses the relationship between the electromagnetic damper structural parameter and damp torque, researches the engineering design and analysis method of the electromagnetic damper, provides theory foundation for the design and analysis of the electromagnetic damper, contrives a hybrid excitation electromagnetic damper that satisfies the target request, designs a set of compound excitation electromagnetic damping loading control system whose control core is AT89C51 monolithic integrated circuit, analyses the electric circuit part, and carries on the experimental test to this set of electric circuits. Finally it debugs this electromagnetic damping loading system, this system satisfies the target request proposed.

论文提出了一个全新的加载测试系统种类,该加载系统是在阻尼器工作原理基础上,利用电动机拖动阻尼器运转,从而阻尼器产生一个与运动方向相反的阻尼力矩,该力矩作用在电动机上实现对电动机加载测试;同时,论文在一般电磁阻尼器基础上提出了一种新型的可调式复合励磁电磁阻尼器结构,该种阻尼器的工作特性在一定范围内可进行调节;论文分析了电磁阻尼器的工作原理和结构特点,运用电磁场理论分析推导了电磁阻尼器的涡电流密度公式,分析了涡电流在转子杯内的分布图,并对阻尼力矩计算方法进行了研究,建立了电磁阻尼器的数学模型,分析了电磁阻尼器结构参数和阻尼力矩之间的关系,对电磁阻尼器的设计和分析方法进行了研究,为电磁阻尼器的工程设计建立了理论基础;设计了满足技术指标要求的复合励磁电磁阻尼器和一套以AT89C51单片机为控制核心的复合励磁电磁阻尼加载控制系统,对该控制系统硬件电路各部分进行了分析和设计,对软件进行了设计,并对控制电路进行了试验调试,该系统满足所提出的加载指标要求。

Differed from the pre-reform period, social rights after Reform were based on a series of intervened contractual relationships rather than identities such as registral citizenship or membership of certain Danwei. From 1980s to 2000s, social rights were mainly based on employment contracts, thus associated welfare entitlement with formal employment, resulting in the lack of social rights of majority members in society.

与改革前社会权利建立在城市人与单位人的身份基础上不同,改革后的社会权利建立在一系列国家干预的契约关系之上。20世纪80年代中期到20世纪末,社会权利主要建立在劳动契约基础上,突出地与城市正规就业相关联,相应地,大部分社会成员缺失社会权利。

Therefore, the study is significant both theoretically and practically. As a result, the studying aim of this paper is to establish a practical and complete system for the prediction of ship maneuvering motion, taking into account of the influence of the environmental factors, such as the wind, wave and current, establish a practical and complete system for the prediction of ship maneuvering motion. In this paper, the OpenGL virtual reality simulation technique is introduced into the field of ship maneuver and control, and using the MMG mathematical model, the three dimensional dynamic simulation system of the ship motion is established and good results are achieved. In the process of the system development, firstly, the maneuvering motion equations for ship in the still water are established, based on the MMG module mathematical model and serial experimental result. After compiling the program, the calculation results are compared with the experimental data, the coherence between them validate the mathematical model.

在系统开发过程中,首先采用MMG分离式数学模型及相关的系列化试验结果,建立单桨单舵海洋运输船舶在静水中的船舶操纵运动方程,并编制计算程序,经与试验结果比较,证实了计算结果的正确性;为了解MMG数学模型中模型参数变化对操纵性指数的影响程度,作者在上述已有程序基础上,对有关模型参数进行偏移修正,探讨了相应参数变化后的操纵性指数,对船舶操纵性指数对模型参数的灵敏度进行了详细的分析与探讨,所得结论与工程实际相吻合,具有实际应用价值,并为进一步提高船舶操纵性预报的精度打下了基础;然后,在已有的船舶静水操纵运动模型基础上,考虑双桨双舵的影响,建立了内河双桨双舵船舶的操纵运动模型;最后,综合考虑风浪流作用力的影响,进行了船舶的操纵运动仿真计算。

Firstly, a 2D quasi-single phase liquid turbulent flow model was developed. In this model, interactions between liquid and bubbling gas phase were taken account of, i.e., interphase drag force and the turbulent energy induced by the bubbling gas phase.

首先,建立了以为基础的塔板二维拟单相流模型,其次,建立了三维两相双流体湍流模型,最后,在双流体流体力学模型的基础上,建立了塔板上液相传质模型。

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推荐网络例句

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。

A caret is a mark place below a line to show where something should be put in .

脱字符是加在一行文字下面的符号,表示此处应加入一些东西。