查询词典 fixed point method
- 与 fixed point method 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper Ⅰ successfully applied these methods to fault diagnosis, and presenting some new innovative machinery fault diagnosis method; First Ⅰ present a new gear wornout fault diagnosis method, this method use the vibration signal's time-frequency attribute and instantaneous phase undulation to accurately detect gear's fault, and by comparing with the traditional frequency domain analysis method, this method reveals that many nonlinear and nonstationary characteristic exist in gear's vibration, this tell us that if we use frequency domain analysis method without pay attention to the signal's characteristic, we could get wrong diagnostic result; Then Ⅰ present a new bearing fault diagnosis method, this method use ATVFD and Hilbert transform to do envelop demodulation,Ⅰ analyze the envelop with time-frequency method and find out that this method is more accurate then traditional method.Ⅰ also explain that the modulation of the fault to the carrier wave may also be non-stationary and nonlinear; Finally Ⅰ present a cylinder pressure measurement method of diesel engine by means of vibration, cylinder pressure is an important parameter of diesel engine fault diagnosis, the pressure measuring is simplified a lot by this method,Ⅰ also use the ATVFD and time-frequency analysis to realize it.
本文中将上述理论方法成功地应用到故障诊断中去,提出了几点创新性的诊断方法;提出了一种齿轮磨损故障诊断的新方法,该方法利用振动信号能量的时频域分布特征与瞬时相位波动特征可以进行精确的齿轮故障诊断,并通过与传统的频域诊断方法的比较,揭示出齿轮振动中存在的明显的非线性与非平稳特征,说明了不加选择地利用频域分析方法进行齿轮故障诊断很可能会得到错误的诊断结果;提出了一种轴承故障诊断的新方法,该方法利用ATVFD分解与Hilbert变换进行包络解调,并对解调得到的包络信号进行时频域分析,可以实现更加准确轴承故障诊断,说明了故障对载波信号的调制往往也是非平稳与非线性的;提出了一种利用振动信号进行柴油机汽缸内压力检测的新方法,柴油机汽缸压力的变化是柴油机故障诊断的重要参数,利用振动方法可大大简化汽缸压力的检测过程,该方法也是综合利用ATVFD分解与时频域分析方法实现的。
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The existing points and lines would form a closed geometric shape. If we put the new point Z outside the closed geometric shape at first and later then found that the point Z has neighboring relationship with the existing point A which is inside the closed geometric shape, we could not link point Z and A directly because that would bring line crossing. If we rearrange the point Z into the closed geometric shape, that also would cause a lot of work to do. With the help of Exclave, all problems could be solved easily. We use point X outside the closed geometric shape as the Exclave of the point A. Then the line between point Z and X could demonstrate the neighboring relationship of the point Z and A.
原有的各点和相邻线段往往会形成一个封闭的几何图形,如果我们把新增点 Z 设在原有的封闭几何图形外部,后来又发现该点 Z 和位于封闭几何图形内部的点 A 存在相邻关系,这时不能直接将两点连接因为那将产生交叉,而如果将点 Z 重新设在封闭图形内部也将导致大量的调整工作;此时借助外飞地的概念,可以轻松地解决上述问题,即在封闭几何图形外部设置点 X 作为点 A 的外飞地,两点使用同样的颜色,用点 Z 和点 X 的相邻线段表示点 Z 和点 A 之间的相邻关系。
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This train classifies "information carrier adhering to the build" as design elements, and probes into integrated design method of it and single building separately: method of definite position, method of definite form and method of combination; Then, this train probes into integrated design method of it and colonys building , that bases on the cognitive design method: method of rhythm controls,method of node outstanding, and that aims at the design method to protect: method of protect original, method of repairing and method of renewal.
本文的第四部分提出了一体化设计的思路,将建筑附着信息载体作为设计元素,探讨了它与建筑单体一体化设计的方法:定位法、定形法、混合法;以及它与建筑群体一体化设计时,基于认知的设计方法:节奏控制法、节点突出法,旨在保护的设计方法:存真法、修缮法、更新法。
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On the basis of the above references, this paper attempts to make use of cone compression and expansion fixed point theorem, Mnch fixed point theorem and fixed point index theorem to discuss a special kind of singular boundary value problem-Lidstone boundary value problem.
主要包括以下三个方面的内容:第一章考虑了Banach空间中2n阶奇异边值问题正解的存在性,其中f在t=0,1处具有奇异性这里θ表示Banach空间E中的(来源:faABC论文网www.abclunwen.com零元。
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By using the partition theorem of unity, a continuous selection theorem for a multimap from a compact Hausdorff topological space to a finitely continuous topological spaces (simply, FC-spaces) without any convexity structure was obtained, and from which and Tychonoff fixed point theorem, a collectively fixed point theorem for a family of multimaps on the product space of compact FC-spaces and several collectively fixed point theorems for a family of multimaps on the product space of non-compact FC-spaces were given.
利用单位分解定理得到从紧的Hausdorff拓扑空间到没有任何凸结构的有限连续拓扑空间的集值映射的连续选择定理,并从该结果和Tychonoff不动点定理,得到紧的FC-空间的乘积空间上映射族的集族不动点定理和若干个非紧的FC-空间的乘积空间上的映射族的集族不动点定理,对文献中的相应结果进行了改进和一般化。
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In chapter 2, by virtue of the properties of partially ordered F-type topological space, we establish some fixed point theorems of increasing mappings in this kind of space. At the same time, we investigate the existence of maximum fixed point and minimum fixed point of increasing mappings on an order interval.
第二章,利用半序F-型拓扑空间的基本性质,建立这类空间上单调增映射的不动点定理,研究其序区间上单调增映射的最大、最小不动点的存在性。
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In Chapter 2, we recapitulate some fundamental definitions and propositions of topological degrees and some fundamental results about the computation of topological degrees;in Chapter 3, applying relative definitions and propositions of topological degrees, we establish product formulae of topological degrees in product space, in particular, the product formula of fixed point index on product cone, moreover, combining with the fundamental propositions and the computation of fixed point index, we obtain some fixed point theorems on product cone.
为此,在第二章中,我们给出了拓扑度的基本概念和性质以及拓扑度计算方面的基本结果;在第三章中,运用拓扑度的有关知识,我们建立了乘积空间中各类映射的拓扑度的乘积公式,特别是乘积锥上的紧连续映射的不动点指数的乘积公式,进一步,结合不动点指数的基本性质和不动点指数计算方面的基本结果,得到了乘积锥上的若干不动点定理。
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The primary studying works and characteristics:1 To summarize reinforcing theory of cement mixing pile composite foundation2 To analyze the primary mechanics characters and changing rules of cement mixing pile, based on analysis of test data both indoor and outdoor.3 To discuss siding frictional resistance, ending resistance, ultimate bearing capacity of simple mixing pile and effectiveness factor of grouped piles, loading ratio of soil between piles under cushion cap of grouped piles and stress ratio of pile and soil and so on, and use many computation method and experimentation method to ensure bearing capacity of mixing piles composite foundation.4 To point out and analyze eight sides flaws and problems of the bearing capacity calculation method of mixing pile compositefoundation which ensured by national and normative method/ formula.5 To apply test results of loading tests and a few settlement observation data, use gray theory to predicate ultimate bearing capacity of deep mixing piles, actual example demonstrate engaging between theoretical predicted value and actual value.6 To apply groovy layerwise summation method to discuss entity piles method, double foundation method, equivalent layerwise summation method and consolidation theoretical method and so on, especially by combination of engineering example, use FEM to calculate or discuss the settlement and changing rules of composite foundation.7 To discuss problems of critical length of composite foundation by combination of engineering example and numerical analysis method, and analyze the contrast of critical length between simple pile load and most area load of composite foundation, not only critical length of composite foundation is relative to modulus ratio between piles and soil, but also upside load distribution area of composite foundation.
主要的研究工作与特色为:(1)总结了水泥搅拌桩复合地基的加固原理;(2)在对室内外试验资料进行统计分析的基础上,系统分析了搅拌桩水泥土的主要力学特性及其变化规律;(3)探讨了搅拌单桩的侧摩阻力、端阻力、极限承载力及群桩效率系数、群桩承台下桩间土荷载分担比及桩土应力比等,提出用多种计算方法并结合试验方法来综合确定搅拌桩复合地基的承载力;(4)明确指出和分析了按国家有关规范的方法确定搅拌桩复合地基承载力所存在的八个方面的缺陷与问题;(5)利用过去没有加载至破坏阶段的载荷试验成果和较少的沉降观测数据,尝试了用灰色理论预测深层搅拌桩的极限承载力,实例表明理论预测值与实测值吻合较好;(6)在常规分层总和法的基础上,探讨了复合地基沉降计算的实体墩基法、双层地基法、等效作用分层总和法、固结理论法等,特别是结合工程实例,用有限元数值计算等方法计算和讨论了搅拌桩复合地基的沉降及其变化规律;(7)结合工程实例,用数值分析方法探讨了复合地基临界桩长的问题,指出和分析了单桩荷载下的临界桩长与复合地基大面积荷载下的临界桩长存在很大的差别,复合地基的临界桩长不仅与桩土模量比有关,而且与复合地基上部荷载分布面积有关。
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This article was mainly obtained to the fixed asset when the valuation and the fixed asset amortizes to the income tax the influence has made the analysis, proposed the use fixed asset obtained when the valuation as well as the fixed asset depreciation method, the depreciation age limit's utility preference, might cause the enterprise to obtain a great tax revenue income.
本文主要是对固定资产取得时计价和固定资产折旧对所得税的影响做了分析,提出利用固定资产取得时的计价以及固定资产折旧方法、折旧年限的有效选择,可以使企业获得一笔较大的税收收益。
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- Part II
- 推荐网络例句
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Guangzhou Institute of Energy Conversion, The Chinese Academy of Sciences, Guangzhou 510640, China
中国科学院广州能源研究所,广州 510640
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So,my darlings..
所以,亲爱的。。
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This ring also name as cholesterin ,so do not take the food which contain too much cholesterin
注二:此环亦称为胆固醇环,平时勿食用含有过量胆固醇的食物。