不复杂的
- 与 不复杂的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Presents the design of longitudinal control for ASTOVL lift-fan aircraft, a multi-variable, strong-coupling, complicated nonlinear system to make the system nonlinear offset and decouple, and the method used for linear system in designing the system to gain expectant flying qualities and the combination of aerodynamic control surfaces with thrust vectors to delay the control surfaces getting into saturation, and the minimum N-norm generalized inverse theorem of weighted generalized inverse adopted to apportion the moments commands, which make the control surfaces gain appropriate deflection and the simulation results to verify the dynamic inverse control laws designed really make the system nonlinear offset and decouple; when one command is given, only this output will response, and others do not response; when all commands are given together, the responses will be just the linear superpose of the response of each command, therefore the operation of the pilot will be simplified greatly.
摘 要: ASTOVL升力风扇飞机是多变量、强耦合、复杂的非线性系统,采用非线性动态逆理论设计控制律以实现系统的非线性对消及解耦,然后,采用线性系统的设计方法对系统进行设计,以使系统获得期望的飞行品质。同时,考虑到ASTOVL升力风扇飞机是由气动舵面和推力矢量融合作用的,为了延缓各舵面进入饱和的时间,采用加权广义逆中的极小N-范数广义逆定理分配力矩指令,从而使各舵面达到适当的偏转角。并将所设计的控制律进行了仿真,结果验证了所设计的动态逆控制律使系统实现了非线性对消和解耦,单个指令作用时,只有该项响应,其余不受影响;所有指令作用时,其结果就等于单个指令作用时的线性叠加,这样使驾驶员的操纵大大简化而易于控制,从而大大降低了飞行事故率。
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For regular topology surface, intermediate surface local texture mapping are used; for irregular topology surface, subdivision surface local texture mapping are used. So different topology surface using different texture mapping methods can solve the contradiction between texture effect and processing speed when they are dealt with by single method. The three judge conditions of texture distortion in the process of mapping onto the sphere surface are discussed and the exiting algorithms of mapping are analyzed, the new algorithms of mapping onto the sphere surface are presented. In order to enhance the realistic of graphics, a new function of wood texture is presented. OpenGL is also introduced in this papers and some realization examples of texture mapping based on OpenGL under the environment of VC++ and POV-RAY are presented in some chapters.
对于简单拓扑表面,利用改进的两步纹理映射,对于复杂拓扑表面利用新的面片分割算法,初步解决了颜色纹理中速度与走样之间的矛盾;通过对球面纹理时纹理不变形的三个判断条件的研究,分析了现在各种球面纹理映射算法,并在此基础上提出了一种基于等面积的半球面纹理映射算法,明显减少了球面纹理的纹理变形;针对现有的木纹纹理中,两种表示木纹的颜色差距表现出的颜色突变问题进行研究,提出对这两种颜色进行线性插值或二次插值,使生成的木纹纹理颜色更加连续,更加逼真;在VC++环境下,通过调用Open GL的图形库及在Pov-Ray软件环境下,实现了参数化纹理、球面纹理、凹凸纹理及木纹纹理等各种算法。
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This paper attempts a critical survey of improving the style of the Party, emphasizing that it is both the basis of the construction of the Party and the necessary demands for practising the theory of"three represents" It attaches great importance to analysing the perniciousness of unhealthy style It also lays great stress on the significance of strengthening the construction of the Party in an all round way on the basis of the theory of"three represents"so that the Party can meet every challenge of...
党的作风问题,也是党的形象问题,作风不正,形象好不了,必然脱离群众,脱离实际,就会严重影响人心向背,影响群众的信任,影响党的工作和事业,这是十分危险的。综观国际国内形势,进入新世纪,我们党面临的形势、任务、环境正发生深刻而复杂的变化,机遇与挑战同在,希望与困难并存,需要我们党站在时代的高度统揽全局,与时俱进,按照"三个代表"的要求,全面加强党的建设。而改进党的作风,既是新时期党的建设的根本,也是实践"三个代表"的必然要求
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Flocculation+0.45μm filter is selected as the pretreatment of the method proposed here.(9) A set of standard methods for ASMs COD characterization is suggested in the thesis and it advantages are:①Respirometry is adopted to measure RBCOD and SBCOD;②SI is determined from raw wastewater and so there is no influence of inert products;③Heterotrophic biomass in wastewater is measured;④The key instrument used in the standard methods-hybrid respirometer, has high automatic level and friendly user interface which simplifies the respirometry. So the suggested standard methods are practical.(10) According to the suggested standard methods, the influent COD of a wastewater treatment plant in Chongqing, China, is characterized.
9提出一套表征城市污水COD组分的标准化方法建议,其特点在于:①以呼吸测量作为RBCOD和SBCOD的测量方法,与以往以物理化学方法为主的做法有着本质区别;②对原水直接进行分析测试来获得SI组分,不受溶解性惰性产物的干扰;③考虑了污水中活性异养微生物组分的单独测量;④所依赖的核心仪器-呼吸测量仪具有很高的自动化程度和简单友好的用户界面,使原本复杂的呼吸测量实验及其结果的分析统计简单化,所建议的标准化方法具有很好的实用性。
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Results of analysis show that Generalized Paris Law can consider the complex crack propagation in the material of the pavement structure. The fatigue life of the pavement increases with increasing thickness of surface layer in a power function. Use of a thicker surface layer may extend the service life of the asphalt pavement. The fatigue life increases with decreasing modulus of surface layer in a power function with a negative exponent. However, since reduced modulus would scarify the structural strength and might cause rutting-related distress, caution should be taken when using low modulus materials for improving fatigue performance of asphalt pavements. The fatigue life increases with increasing modulus of base material in a power function. However, the fatigue life can not infinitely increases with increasing modulus of the base.
计算与分析表明:广义Paris公式可以考虑沥青路面结构内材料复杂的裂缝扩展:沥青面层的疲劳寿命随着面层厚度的增加以幂函数的形式增加,适当增加沥青面层厚度可以提高路面的使用寿命;沥青面层的疲劳寿命随着面层材料模量的降低以负指数的幂函数形式增加;由于材料模量的降低将牺牲路面的整体强度并可能引起路面车辙类损坏,以此提高疲劳寿命的方法应慎重对待;沥青面层的疲劳寿命随着基层材料模量的增加呈幂函数的形式增加,但由疲劳方程可以看出,寿命并不是随基层材料模量的增加而无限的增加,疲劳曲线在经过一个上升段后,逐渐趋于一个常数值,这说明,这时基层模量对寿命已不作关键性贡献;随着底基层厚度的增加,面层的疲劳寿命近似地呈线性函数增加,但效果并不很明显。
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The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.
塔河油田奥陶系碳酸盐岩油藏的地质研究表明,其储层中发育着很多大型的溶蚀洞、缝,储层的平面展布呈现出极度的非均质性,形成了典型的缝洞型碳酸盐岩油藏,根据各种孔隙介质在储层中的组合,将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类;研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关;多期充注的油气成藏模式导致了流体复杂的赋存状态,由此提出了所谓的"瓶子模型",解释生产过程中油水界面的变化;特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性,为了合理的解释油气田开发过程中的动态特征,提出了"缝洞单元"的概念,并制定了"缝洞单元"纵横向划分的基本原则和依据及划分方法,并对"缝洞单元"进行了分类和评价;基于地质特征和流体在其中流动规律的研究,提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案,通过模拟单元的选择、流动类型和参数的等效,建立了三重介质油藏三维三相数值模拟模型,采用不完全LU分解预处理共轭梯度法进行了求解;在塔河油田4区精细油藏描述的基础上,将各种类型的孔隙空间进行了归类组合,建立了S48单元的地质模型;通过对油井生产动态进行分析研究,建立了两类和油井地质、生产动态相对应的单井模型;最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟,通过局部加密和粗化等技术模拟流体流动规律,取得了很好的拟合效果;结合数值模拟结果,分析了各种介质中的储量分布、储量产出的百分比以及地层的能量,认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中,所产出流体90%以上也来自于缝洞系统,其底水能量属于较充足的类型;模拟结果和油田实际情况符合较好,说明了地质研究和油藏数值模拟研究的正确性。
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The activated or leached process and their influence elements are studied by 1DREACT software package of coupled mass/heat transfer and chemical reaction dynamics of water-rock interaction, according to the geological and geochemical characters of fine disseminated gold deposits.(1) Water-rock reaction time is not the important influence element of activating gold;(2) At first, activating capability of hydrothermal solution increases with the increasing of total sulfur activity; after lga〓≥-4, the content of activated gold in solution is mainly related to original content of gold in wall rock, and does not visibly dependent on total sulfur activity.(3) It is a complicated nonlinear process of influence of activating gold capacity of hydrothermal solution with the change of temperature, in general, 220 ℃ is most favorable to gold activation.(4) The influence of oxygen fugacity on gold activation has a multiple functions coupling nonlinear effect, in general, Igfo〓=-41 is most favorable to gold activation.(5) Solubility of gold in fluid decreases with the increasing of velocity of flow, the product of velocity and aurous solubility reaches maximum when velocity is 0.2~0.5m〓m〓. yr〓, i. e. this scope of velocity is most favorable to gold activation.
利用1DREACT水-岩相互作用反应-输运耦合动力学软件包,根据微细浸染型金矿床地质地球化学特征,计算机模拟研究了金的活化、浸取过程及其影响因素,发现:(1)金活化过程中水-岩反应时间不是其主要制约因素;(2)热液对金的活化能力开始随总硫活度的增高而增高,当lg a〓≥-4后,热液中活化金的含量将主要与围岩中金的初始丰度有关,而对总硫活度无明显依赖关系;(3)温度对热液浸金能力的影响是一个复杂的非线性过程,总体而言,220℃最有利于金的活化;(4)氧逸度对金活化的影响呈现出一种多因素叠加的非线性效应,总体而言,lgfo〓=-41最有利于金的活化与浸取;(5)流体中金的浓度随流体流速的加快而降低,流速与金浓度的乘积在流速为0.2~0.5m〓m〓。yr〓时达到极大,即0.2~0.5m〓m〓。yr〓的流速范围最有利于本类矿床的金的活化。
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The development of complex politics, economy, ideology and cul-ture decided that in China, the great task of democratically political constr...
中国社会极为复杂的政治、经济、思想文化的发展状况,决定了由资产阶级提出的在中国进行民主政治建设的伟大任务不可能建成,而需要长期的、艰苦的努力。
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The demand uncertainty increases, the product life cycle reduces, massively has custom-made, the high strength competition, the globalization and so on causes the enterprise to face the buyers' market which is a change rapid also forecast with difficulty; Under the dynamic complex market environment, meets customer's need fast, only depended on the enterprise resources already was not impossible.
需求不确定性增加,产品的寿命周期缩短,大规模定制化、更高强度的竞争、全球化等等使企业面临的是一个变化迅速且难以预测的买方市场;在动态复杂的市场环境下,快速满足顾客的需求,单靠企业自己的资源已经是不可能的了。
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Our elaborate rituals of mechanization cannot take the place of the human dialogue, the drama, the living circle of mates and associates, the society of friends.
我们这个时代复杂的机械化的程式也是不能取代人类之间的对话,戏剧性的事情,同事们和朋友们的生活圈的。
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。