灵敏度分析

The adjoint variable method for design sensitivity analysis of multibody system dynamics based on ordinary differential equations is presented.

基于常微分方程数学模型建立了多体系统动力学设计灵敏度分析的伴随变量方法。

And the analytical method of sensitivity analysis based on FEM is discussed.

并研究了基于有限元法的灵敏度分析解析算法。

The paper studies the application of boundary element method in shape optimization of elastic problems.

应用边界元法的弹性结构灵敏度分析及其形状优化边界元法

With the 120 km/h mechanical cool plate refrigerator car as an example, through the structure optimization, sensitivity analysis and parameter optimization of the car-body steel structure, the analysis and calculation methods of lightening of the car-body load-carrying structure are provided.

以120km/h机械冷板冷藏车为例，通过对其车体钢结构进行结构优化、灵敏度分析和参数优化，提供了车体承载结构轻量化的分析计算方法。

In this method the transfer functions, which are the response of the temperature and thermal stress in the key parts of the special structures caused by the unit temperature load with the special loading model, are computed firstly using the detailed finite element analysis. Then both the thermal and stress responses and their sensitivities to any complex change of temperature can be obtained by the simple cirro-product integral.

该方法的基本思想是：基于一定的结构和热载荷模式，将事先通过详细有限元分析求出的单位突加热边界条件变化引起的结构控制区的温度和热应力响应作为传递函数，然后进行简单的卷积积分运算，就可以得到任意热载荷幅值变化历史所对应的温度和热应力，进而也可快速进行灵敏度分析。

Some conclusions and sensitivity analysis are come to by stepwise in-depth analysis and comparison.

通过思路的逐步深入和对比分析，得出部分参数的灵敏度分析和一些结论。

Based on the artificial neural network model, the sensitivity analysis on each variable of model shows that the effect of ring index of diameter at breast height of Cunninghamia lanceolata on sun-spot is even, and the effects of auto-correlated factors of sun-spot on sun-spot are sensitive, which shows that three variables all have significant effects on sun-spot.

并对网络模型中各变量进行灵敏度分析，分析表明，杉木胸径生长的年轮指数对太阳黑子相对数年平均值影响较平坦，而太阳黑子自相关因子Yt-4和Yt-2对太阳黑子相对数年平均值影响较灵敏，3个因子对太阳黑子相对数年平均值均存在一定的影响。

By synthesizing theories of systems engineering, science of talent, talent assessment, performance appraisal and bibliometrics, the author analyzes the qualification structure and performance structure of theachers in military academies and sets up a basic structure and concrete appraisal indicator system of qualifications of technical specialty for teachers in colleges. The author puts forward new appraisal indicators such as "lecuring hours coefficient","republication coefficient","thesis of core journals coefficient" and "citation coefficient". Comparatively complete quantification approaches are invented by the author for working performance of teaching, researching and social service of teachers. Based on this, the author establishes an integrated method to generate the appraisal results. By the application of stadardized processing on the appraisal results and synthetization of weighted indexes, the author solves the addibility and comparability problems of differentiated appraisal results by category or dimensiok, and realizes the amalgamation and comprehensive appraisal of inflexible appraisalresults and flexible appraisal results, and probes into the testification methods of validity, consistency and sensitivity analysis for the indicators system.

综合运用系统工程理论、人才学理论、人才素质测评理论、工作绩效评估理论、文献计量学等原理与方法，分析研究了军校教师的素质结构和绩效结构；建立了高校教师专业技术资格评审条件基本结构和具体评价指标体系，提出了&完成主讲课程课时系数&、&著作重版系数&、&核心期刊论文系数&、&论文被检索引用系数&等若干新的评价指标；提出了比较完整的教师的教学、科研、社会服务等工作业绩的量化方法；以此为基础，建立了评价结果的综合方法，通过对评价结果的标准化处理，运用指标加权综合法，解决了不同类别、不同量纲指标的评价结果的可加性和可比较性问题，实现了硬评价结果和软评价结果的融合和综合评价；探讨了指标体系有效性、一致性、灵敏度分析的检验方法。

Steady-state harmonics and transient performance of the conventional static synchronous compensator controllers are first investigated. Based on the sensitivity analysis of the STATCOM output power, it is found that the voltage magnitude is more effective than the phase angle in controlling the reactive power output. An analytical approach to harmonic analysis of a STATCOM based on Bessel functions of the first kind is described.

本博士论文首先分析传统静态同步补偿器(Static Synchronous Compensator， STATCOM)控制器的优缺点，利用对静态同步补偿器输出功率的灵敏度分析，得知要控制补偿器输出虚功大小时，直接对静态同步补偿器输出电压大小作控制，会比对相角作控制来得有效。

This thesis fist researches in the railway freight transportation price formation mechanism, then summarizes the railway freight transportation factors and decision methods. The next analyzes the status and the basic characteristics of the existing system of Railway Freight Tariff, identifies some problems existing in freight prices. This thesis rises the view of reduce the controls of railway freight transportation prices to a certain extant. In the end of this thesis, a Bi-level planning model is set up to reform and optimize the existing railway freight tariff, then gives a analysis based on the heuristic algorithms.

本论文在研究铁路货物运价形成机制的基础上，对铁路货物运价影响因素和制定方法进行了归纳，分析了铁路货物运价体系的现状和基本特点，找出了现行铁路货物运价存在的一些问题，针对这些问题提出适当放松铁路货物运价管制的观点，建立了改革优化现行铁路货物运价的双层规划模型，并给出了基于灵敏度分析的算法。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。