查询词典 systematic analysis

Aiming at the problem of buckling stability capability of box section hoist boom of wheel crane, a complete section of hoist boom is taken as analysis object and buckling instability of the webs is analyzed and researched with the booms of different sectional shapes by applying finite element analysis method. Compared with crane design code (GB3811-83), one piece of plate is taken to calculate buckling stability, the method is easier and more accurate and calculation and analysis of complicated sectional shapes are easy to conduct.

针对轮式起重机箱型起重臂的抗屈曲失稳能力问题，采用有限元分析方法，取起重臂截面半波长段作为分析对象，对相同工况不同截面形状的起重臂的屈曲失稳情况进行分析研究，相对于起重机设计规范(GB3811-83)给出的取一块板进行屈曲计算要快捷、准确得多，而且也容易完成对复杂形状截面的计算分析。

First, this paper presents three girders model with double cable planes which main girder and side girder is connected by rigid arms, analyzes the dynamic characteristic of Yonghe cable-stayed bridge and obtains its natural vibration modes (i.e., frequency, damping values and the mode shapes ) by ANLSIS structural analysis program and uses these parameters as dynamic dactylogram of the intact case of cable-stayed bridge. Using the passage of random as the ambient vibration ,the dynamic properties of Yonghe Bridge is measured and the modal parameter of its 15 years after is identified and used as dynamic dactylogram of the damaged case. By the finite element analysis and locale vibration test, damaged and undamaged modal parameter is analyzed and curvature mode shape, which is sensitive to damage state, is introduced as possible candidate for identifying and locating damage in the cable-stayed bridge. Selecting the branch of part measured point from modal parameter, this paper deduces the damaged index which can detect the possible damaged location of the cable-stayed bridge deck and identifies the damaged region and degree for Yonghe Bridge. For the purpose of structural condition monitoring in in-situ , from another viewpoint, this paper introduces the method called the best optimization vector to detect damaged location and degree. The accuracy and reliability of the method presented in this paper are demonstrated by static analysis and test and the healthy state of Yonghe Bridge can be evaluated.

建立了双索面通过刚臂与主梁及边梁相连的三梁式力学模型，采用ANSYS结构分析程序对永和斜拉桥进行动力分析，对其振动模态参数进行识别，以此作为斜拉桥完好状态下的动力&指纹&；采用自由交通流作为环境振源，对永和斜拉桥动力特性进行测试，识别出永和斜拉桥使用15年后的模态参数，确立了破损状态下的动力&指纹&；利用有限元分析、现场振动测试，对破损前后的模态参数进行分析，提取对破损状况较敏感的模态曲率作为斜拉桥破损诊断的参数；并从模态参数中选取部分点的分量，导出可以指示斜拉桥桥面大概损伤位置的Index损伤指标，识别出斜拉桥发生破损的区段及破损程度；考虑大型斜拉桥在线监测要求识别破损的具体位置，从另一角度提出采用最优矢量法具体确定破损发生的位置及程度；为验证本文研究成果，对永和斜拉桥进行静力分析及静力测试，对其健康状况提出可靠的评价。

This article seeks to analyze the current situation summarizing the results of analysis of the characteristics of e-commerce on the basis of the importance of subjectivity, and a comprehensive analysis of the trends under the principle of the basic features of e-commerce, as well as from the market, the seller, the buyer, the whole four perspective on e-commerce features derived from an analysis of the induction, and a more comprehensive e-commerce into this new business model with features.

本文力求在归纳分析目前已有的电子商务特点分析成果的基础上，在重要性、主体性、趋势性和全面性分析原则下，对电子商务的基本特点以及从市场、卖方、买方、整体四个视角对电子商务的衍生特点进行了一个归纳分析，进而比较全面的归纳了电子商务这一全新商务模式具有的特点。

The biggest characteristics in this paper is using independent quantitative range analysis and variance analysis of orthogonal experiment to analyze die casting defects, base on these analysis, detect the weight of each process parameter to die casting defects, then synthetically think over the influence of whole casting quality by the weight of every die casting defect, to balance and choose the level of casting process parameter for seeking the whole quality optimization of casting.

本文最大的特点是将各压铸缺陷进行独立量化的正交实验极差分析和方差分析，通过这些分析可知各工艺参数对此铸造缺陷的影响权重，然后综合考虑各铸造缺陷对轮毂铸件整体质量的影响权重，权衡和舍取工艺参数的水平，以达到铸件整体质量的最优化。

This article uses the following methods: qualitative analysis and quantitative analysis of a combination of methods; literature analysis.

本文的研究方法主要是：定量分析与定性分析相结合的方法；文献分析法。

In this paper, a case analysis and the Combination of questionnaire analysis, analysis of China's B2C e-commerce online marketing strategy.

本文采用了案例分析法和调查问卷法相结合的分析方法，分析研究我国B2C电子商务的网上营销策略。

The feasibility analysis on the packer's function of sealing,anchoring and supporting has been launched,and the contact finite element analysis of the middle rubber with four different lengths has been finished,appropriate length of the middle rubber has been got,and a foundation has been laid for analysis of rubber combination.

开展了水平井酸化封隔器实现密封、支撑、锚定功能的可行性分析，完成了四种长度的中胶筒接触有限元分析，得到了合适的中胶筒长度，为组合胶筒地分析奠定了基础。

By the mechanics analysis of pumping rod, the calculation model of the mechanics analysis of pumping rod and neutrality point of oil tube have been established. The function of pumping rod bend space length and account method have been derived and analysis example have been completed. The simulation of wellbore trajectory and the deformation curve of sucker rod and oil tube is also given.

论文对机械磨损和腐蚀对偏磨的影响进行了分析，通过对抽油杆和油管的力学分析，建立了下冲程抽油杆、管柱下部受力分析与中性点计算模型；给出了抽油杆变形的影响因素，建立了油井井身轨迹、抽油杆和油管在油井中的变形曲线模拟软件。

The main functions of this system are medical record management, measurement of dental arc width, measurement of dental arc length, calculation of Spee's curve distance, calculation of crowding degree, angle measurement, Bolton index analysis, mixed dentition measurement and analysis, statistical analysis, specialist system, and so on.

系统的主要功能包括：病历管理、牙弓宽度测量、牙弓长度测量、Spee氏曲线距离计算、拥挤度计算、角度测量、Bolton指数分析、混合牙列期测量分析、统计分析，以及专家系统，等等。

Both deviation analysis method based on correction coefficient and deviation analysis method based on deviation factor are presented by introducing the principle of deviation analysis. With an instance, the influence on heat consumption or coal consumption rate by the deviation of main operational parameters and technical economy indexes are quantificationally calculated.

在阐述偏差分析机理的基础上，提出基于校正系数的偏差分析方法和基于偏差因子的偏差分析方法，结合实例，定量地反映出主要运行参数和经济技术指标的偏差对机组热耗或煤耗的影响。

Effective local search tactics reaches local searchers when they are ready to buy - with every way that it is possible for them to buy from you.

有效的地方搜索策略达到当地的搜索，当他们准备购买-以各种方式，这是他们有可能从您那里进行购买。

The first two are periodic sentences for their beginnings; and the fifth and the last are also periodic sentences each for the embedding of a parenthetic structure.

1960年代中后期，当战后女权主义和当时的许多其他抗议运动在西欧和北美发展成某种势力时，性别的概念演绎成补充和延伸生物性别差异的概念。