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In order to improve the objectivity of green degree evaluation for manufacturing process of accouterment part,base on the characteristic of the green manufactureing of accouterment part and the request of evaluation for green manufacture a rough comprehensive method base on rough-set theory is proposed to evaluate the green degree.

为提高产品零件制造工艺绿色度评价的客观性,根据军品零件绿色制造的特点和绿色制造评价的要求,应用粗糙集原理,提出了粗糙集综合绿色度评价法。

In order to study the dynamic and instability rule and gain a damping evaluation method according to the test result, damping research ways of several foreign and domestic foil bearing types were compared. The interaction among cells was considered based on the approach of separating damping from stiffness. An effective damping evaluation method was developed based on the energy dissipation method. The structural damping of two-layer free plate foil bearing was analyzed on the basis of energy dissipation method.

为了更好地研究箔片轴承的动特性和稳定性,得出与实验结果相符合的评价方法,首先对国内外几种有关箔片轴承库仑阻尼的研究方法进行了比较,根据阻尼和刚度分离评估的思想,考虑箔片之间和箔片单元之间的相互作用,基于能量耗散的思想提出了一种有效的箔片轴承阻尼评估方法,最后对双层同向自由平箔结构箔片轴承的结构阻尼进行了详细分析和数值比较。

The following exciting results are revealed: 1 When considering the influence of some nonlinear elements such as hard-limit of exciters, the effects of some devices such as Power System Stabilizer and Static Var Compensator which can introduce positive damping in power system, the reasonability of system parameter values in simulation, the SNB surface and HB surface on the boundary of SSSR will turn close to each other and even coalesce together; 2 Under some conditions, coupling between slow exciters and shunt capacitors will bring negative damping in power system dynamics, which increases the possibility of oscillatory instability. So the power system with mass shunt compensators is easily subjected to the oscillatory instability. In recent years, chaotic phenomena of power system have been reported many times. Some simulation studies even found chaos existing inside the power system SSSR. In this dissertation, chaotic phenomena in power systems are thoroughly studied in order to make clear the relation of chaos and SSSR. The following results are derived: 1 Based on Li-Yorke Theorem and their definition on the chaos, the existence of chaos in power system is verified; 2 Three possible routes of causing chaos in power system are found and deeply investigated. They are route of cascading period doubling, route of directly initial energizing and route of torus bifurcation (or quasi-periodicity). The latter two routes are investigated for the first time in power system stability studies; 3 When the stability conditions of chaos are broken, it is found they can lead to voltage collapse, angle divergence, or voltage collapse with angle divergence simultaneously.

针对在电力系统小扰动稳定区域内可能存在混沌吸引域的有关报道,本文深入研究了电力系统混沌现象的出现途径和与系统失稳模式之间的关系:1利用Li-Yorke定理和Li-Yorke的混沌定义,从理论上证明了电力系统混沌现象的存在性;2发现了电力系统中导致混沌出现的三种可能途径:倍周期分岔导致混沌、初始能量直接激发混沌和经由环面分岔导致混沌,并对后两种新发现的途径进行了较为细致的研究;3发现了混沌极限环破裂导致电压崩溃、角度失稳以及电压崩溃和角度失稳同时出现的现象,其中混沌极限环破裂导致系统角度失稳和电压崩溃及角度失稳同时出现的现象均属首次报道;4证明由微分-代数方程描述的系统模型,其小扰动稳定域的边界只包含HB、SNB和SIB三种分岔界面,在SSSR的内部和边界上,均不可能存在会导致混沌的点,从而将混沌现象排除在小扰动稳定域的研究之外,简化了后者的研究工作。

According to the wire electrode on the trajectory of the different forms of control, WEDM can be divided into three types:* is a copy-control, cutting their lines in advance to create the shape of the workpiece and the same mode *, When the rough machining parts and die at the same time * Clamping in the machine tool table, in the process of cutting wire electrode tightly * close to the edge of model for mobile track, thus cutting out the model * with the same shape and precision to work; another One is the optical tracking control, the cutting in line before the first parts in accordance with drawings by a certain ratio of enlarge depicts an electro-optical tracking maps, drawings will be processed when the machine electro-optical tracking placed on the stage, followed on the stage The first photo has to follow the ink line graphics track movement, and then through the use of electrical, mechanical linkage to control the machine tool table work together with the relative electrode wire Xiang Sixing do sports in order to cut out the pattern and shape of the workpiece to the same; a re - Is a digital process control, advanced digital automatic control technology, machine-driven process in accordance with the geometry of the workpiece before the parameters of good pre-processing CNC automatic completion of the processing, production do not look like without drawing board also plans to enlarge, in front of more than two Control in the form of higher precision processing and broad scope of application, at home and abroad for more than 95% of WEDM have been using digital technology.

根据对电极丝运动轨迹的控制形式不同,电火花线切割机床又可分为三种:一种是*模仿形控制,其在进行线切割加工前,预先制造出与工件形状相同的*模,加工时把工件毛坯和*模同时装夹在机床工作台上,在切割过程中电极丝紧紧地贴着*模边缘作轨迹移动,从而切割出与*模形状和精度相同的工件来;另一种是光电跟踪控制,其在进行线切割加工前,先根据零件图样按一定放大比例描绘出一张光电跟踪图,加工时将图样置于机床的光电跟踪台上,跟踪台上的光电头始终追随墨线图形的轨迹运动,再借助于电气、机械的联动,控制机床工作台连同工件相对电极丝做相似形的运动,从而切割出与图样形状相同的工件来;再一种是数字程序控制,采用先进的数字化自动控制技术,驱动机床按照加工前根据工件几何形状参数预先编制好的数控加工程序自动完成加工,不需要制作模样板也无需绘制放大图,比前面两种控制形式具有更高的加工精度和广阔的应用范围,目前国内外95%以上的电火花线切割机床都已采用数控化。

Disintegration of the system and recombination of the fragments all reveal a material world based on the logic of modern technology, disordered order and effort on the part of the artist to seek to rebuild a life scene based on a new outlook.

这种系统的分解与碎片的重组,体现了一种现代科技逻辑思维下的物质世界景观,一种无序中的有序,也体现了艺术家试图以一种新的价值观重组现实生活景观的努力。

Generally speaking, if the RGB version, Black Edition version the subtractive primary colors halftoning relatively long, black plate halftoning relatively short, the two gradient natural interface to give the feeling of continuous full; if the black-and-white and color reproduction Halftoning is longer (4 editions of total-order increases more than 360%), the business card printing and membership card of the effect of making products more likely to occur in the mirror, laodelphax, and is not conducive to the polychromatic, high-speed business card printing and membership card; if the black version and the version on the tricolors of halftoning shorter (yellow, magenta, black pteroceltis 30, 80, four editions of halftoning cannot is shorter than the 240%), the business card printing and membership card making products more likely to occur on the effect of, thin, image density contrast, hue, uncontinuously, spacious icing on the cake is not enough.

一般讲,如果以三原色版为主,黑版为辅,三原色版阶调相对要长,黑版阶调相对要短,两者阶调自然衔接,给人以连续完整的感觉;如果黑版和三原色阶调都长(四个版总阶调长超过360%),制卡和会员卡制作品的效果容易产生灰、平、闷,而且不利于多色高速制卡和会员卡制作;如果黑版和三原色版阶调都短(黄50、品红50、青30、黑80,四个版阶调总长不能短于240%),制卡和会员卡制作品的效果容易产生浅、平、薄、图像密度反差不均,色调不连续的感觉,立体感、空间感不够。

Based on this,189 bridgesin the actual projects as a sample were selected,the connection between static test result anddanymic test result was built in this paper in order to assess the structure\'s bearing capacity bydynamic characteristics of bridge.The main contents are as followings:(1)On the base of actual observation records of bridge samples,the mechanicalproperties of the assembly slab bridge is obtained,and the mechanical characteristic ofhinged joint and bridge deck,the distribution of the guard rail in transverse direction are alsodiscussed.Based on the above analysis,the rational theoretical model is built,which offerssome reference to assess the structure\'s bearing capacity.

基于此,本文在实际工程项目中选取189座板桥作为样本,通过对样本桥梁实测静载挠度、应变和动载频率进行统计回归分析,建立桥梁结构动载试验结果与静载试验结果之间的关系,通过桥梁结构动力特性来评定结构承载力,论文主要完成了以下几个方面的工作:(1)以样本桥梁实测数据为基础反演装配式板桥受力特性,确定各种型式装配式板桥的铰缝受力特点、桥面铺装层受力特点以及护栏沿桥面横向分配原则,以此建立真实反映装配式板桥受力特点的理论计算模型,为装配式板桥承载力评定提供理论计算依据。

When the user opens a box the hoisting up, the transformer and the bottom plank connected bolt shall be demolished, hangs with four similar length's steel cable on oil tank's special-purpose lift hook, uses another string or the scallop to bundle these 4 steel cable and the transformer in the same place, pays attention to steel cable and outside stainless steel shell of bellow on the top of the transformer should add the felt circle or the rubber gasket, in order to avoid the steel cable damage transformer 's bellow shell, then slings the transformer slowly, Moves it to the pad base on the support, fix the transformer with the install screw buried well in advance.

5.4用户开箱起吊时,将互感器与底木板相连的螺栓拆除,用四根同样长度的钢缆挂在油箱的专用吊钩上,再用另一根绳子或带子将这4根钢缆和互感器捆在一起,注意钢缆与互感器顶端的膨胀器不锈钢外罩外应加毡圈或橡皮垫,以免钢缆损坏互感器的膨胀器外罩,然后慢慢吊起互感器,把它移至支撑垫基上,用预先埋好的安装螺杆将互感器固定。

We can then reflect in a broadly Kantian spirit on the conditions of our making such ascriptions—on what must be so, how we must be able to think, and what we must be able to do, in order to think of anyone as possessing such thoughts and experiences.

这种反思是为了揭示某些思想或信念在我们关于世界的概念当中的特殊位置,即它们的某种哲学无敌性。

In order to develop and modify Gregory scheme for cumulus convective parameterization,we make the improvement as follows:(1) The large-scale moisture convergence is taken into account and the organized inflow,which occurs in the area of large-scale moisture convergence and is directly proportional to it, is added to turbulent airflow.(2) The influence on saturation vapor pressure exerted by supercooled water is taken into account and the initial mass flux is adjusted. Based on diagnosis of the air heating and moistening, the downdraft airflow is adjusted.(3) Based on the character of our country heavy rainfall,which usually occurs in the mixed cloud consisted of stratocumulus and cumulus, the process of excessive convection is restrained by organized outflow in the top of cloud and improving downdraft current and by reducing the evaporation of rainfall and release of latent heat.

为了改进和发展Gregory积云参数化方案,(1)考虑了大尺度水汽辐合对积云对流的影响,即在混合卷入中加入有组织的卷入,让有组织的卷入存在于有大尺度水汽辐合的层次上,并且与大尺度水汽辐合直接成比例;(2)考虑了过冷水存在对饱和比湿的影响,调整了初始的质量通量,并且根据对大气加热加湿的诊断,调整了大气向下拖曳的强度;(3)根据我国降水多由层状云和嵌入其中的对流云混合产生的这一特点,对于过强对流过程进行抑制,在云顶加入有组织的卷出,同时加大向下拖曳的强度,减少蒸发以降低潜热的释放,抑制过强对流的发生。

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The split between the two groups can hardly be papered over.

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