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 constraint function 的翻译结果: 查询用时：0.154秒
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 constraint function 约束函数(26)
 约束函数
 Constraint function method in nonlinear fault problems 节理非线性问题的约束函数法 短句来源 Basing on the sensitivity analysis of the hub’s physical dimension,we have carried on the optimum structure study by selecting the most sensitive structure size(hub thickness and bore size) as optimum design variable,taken the stress most value 150MPa as optimization objective and the most lightness of hub weight as constraint function. 在对轮毂相应结构尺寸灵敏度分析的基础上,找出对轮毂结构最敏感的优化设计变量:轮毂的厚度与轮毂所挖孔的孔径,以应力最值(150MPa)为优化目标,以轮毂重量最轻为约束函数,通过优化分析,得出轮毂的合理结构。 短句来源 In particular, the method of discretization is among these algorithms, which can approximate constraint function by means of progressively finer discretization of an interval of continuous variable. 离散化方法就是其中之一，这类算法主要通过较细地离散连续变量的区间来逼近约束函数，从而将半无限规划问题离散后转化为约束较多的约束优化问题。 短句来源 Two feasibility-modeling techniques for constraints analysis including worst-case method and statistic method were discussed. Using the variation of constraints studied by the robustness analysis, new constraint function was obtained and the robust tolerance design model was constructed. 给出包含噪声因素的一般公差设计模型,研究了统计约束函数的变差计算方法: 采用极值法计算其最大波动值或是采用统计分析法计算其方差,并将此变差作为附加约束条件,构建新的约束函数,得到了一种稳健的公差设计模型. 短句来源 Based on the Method of Feasible Directions, the optimization program which is used for not only effectively solving optimization problems of linear or nonlinear constraint function but also solving optimization problems of non-constraint function is compiled. 本文开发了基于可行方向法的优化程序,不仅可有效地求解线性或非线性约束函数优化问题而且可用于求解无约束函数优化问题。 短句来源 更多
 “constraint function”译为未确定词的双语例句
 In the aspect of modeling, a series of visual window interfaces have been developed in Delphi to determine object function, constraint function and design variables, with the emphasis on the determination of design variable system on the graphics of geometry modules via the technique for opening I-DEAS software. 在可视化建模方面，在Delphi下开发了可视化确定设计目标、约束和设计变量的可视化窗口界面，重点是利用I-DEAS软件二次开发技术，实现了优化建模的图形辅助变量归并。 短句来源 By reviewing the history course of SOE's reform, deeply analyze the promotion and constraint function of government, elaborate how the government affect the reform of SOE. 其次，在对我国国企改革过程政企关系的历史回顾的基础上，深入地分析了政府在国有企业改革中的促进与制约作用，阐明了政府是如何影响国有企业改革的。 短句来源 With the introduction of the concept of input constraint function, a new functional analysis method is put forward, including its decomposing steps. This method provides a reliable mode for the conceptual design of mechanical products. An engineering case is cited to confirm it finally. 通过研究技术系统的特征,揭示了机械产品的广义工艺功能特性．引入了输入约束功能的概念,提出了基于广义工艺功能的分解方法,并给出了详细的分解步骤．该方法为机械产品的概念设计提供了一种操作方便、信息全面的功能分解模式．最后引用工程实例验证了该方法的实用性． 短句来源 These functions are: guiding function, condensation function, constraint function, inspirits function and stabilization function. 这些功能分别是导向功能、凝聚功能、约束功能、激励功能和稳定功能。 短句来源 Constraint function of corporate culture 企业文化的约束功能新论 短句来源 更多
 相似匹配句对
 The function of 睾丸激素的功能 短句来源 Constraint function of corporate culture 企业文化的约束功能新论 短句来源 Constraint function method in nonlinear fault problems 节理非线性问题的约束函数法 短句来源 The Measurability of Function 函数的可测性问题 短句来源 On Liability Constraint 略论责任约束 短句来源

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 constraint function
 The restoration portion of each cycle involves one or more iterations and is designed to restore the norm of the constraint function to within a predetermined tolerance about zero. Under stronger assumptions, linear convergence rates are established for the sequences of objective function, constraint function, feasible point, and multiplier values. This paper analyses the properties of the projection mapping over a set defined by a constraint function whose image is possibly a nonpolyhedral convex set. In particular, we show that CQCCP problems with either a strictly convex objective function or at least one strictly convex constraint function lie in this class. on the sublevel sets of the constraint function) under linear perturbation. 更多
 Optimum design procedure of tanker longitudinal members is used for the two tankers(15000 tonnage and 50000 tonnage) constrained by the 1973 Chinese Rules for the construction of sea-going steel ships. The present article analyzes the variation of the structural weight resulting from the change of longitudinal spacing or longitudinal span.The standardization for the optimum results is performed,so that the results are available for use. The computative results show that the weight of tanker longitudinal members... Optimum design procedure of tanker longitudinal members is used for the two tankers(15000 tonnage and 50000 tonnage) constrained by the 1973 Chinese Rules for the construction of sea-going steel ships. The present article analyzes the variation of the structural weight resulting from the change of longitudinal spacing or longitudinal span.The standardization for the optimum results is performed,so that the results are available for use. The computative results show that the weight of tanker longitudinal members is reduced by about 5% as a result of optimization. The article proposes and applies partially improved SCDD optimum method. This is such a method that takes the accelerative measures when optimum point is searched along the negative gradient of synthetical constraint function by SCDD method. Therefore,the computative speed is increased and the better results have been obtained. 本文以一九七三年中国钢质海船建造规范(修改通报)的要求值为约束条件,对国产的两艘油轮进行船体纵向构件最优设计探讨,文中并提出和采用了改进的《SCDD》数学优化方法。 In this paper, the author presents a feasible direction method that does not require the use of derivatives of the constraint function with respect to the design variables. The definition of active design variables is described, and the corresponding criterion of active contraints to active design variables is set up, and the calculating formular of β by which the feasible directon can be defined is derived as well. Moreover, the author has improved calculation of contraints, estimation of step size and... In this paper, the author presents a feasible direction method that does not require the use of derivatives of the constraint function with respect to the design variables. The definition of active design variables is described, and the corresponding criterion of active contraints to active design variables is set up, and the calculating formular of β by which the feasible directon can be defined is derived as well. Moreover, the author has improved calculation of contraints, estimation of step size and selction of admissible band width of active cntraint. The method applied to the constructures in which displacements are not active, or otherwise, it is proposed to combine the above method anddthe direction synthesis [1] in nonlinear programming to form a so -called mixed method. The results from calculation indicate that the mixed method reduces number of the derivation times and time of each iteration, so the calculating speed increases to some extent. 本文对不求导数的可行方向法进行了研究,文中提出了有效设计变量的定义并建立了有效约束与有效设计变量对应的准则,推导出确定可行方向的β值的计算公式.另外,对约束值的计算,步长的估算,有效约束允许带宽ε的确定采取了较为合理的措施.这一方法可以有效地用于无位移有效约束的各种结构.对于具有位移有效约束的情况,将上述不求导的可行方向法与非线性规划的合成方向法结合起来,形成混合法.算例表明,这种混合法可减少对约束求导的运算次数和每次迭代计算的时间,在一定程度内加快了计算速度. In the case of a layout being fixed, the optimum design of combination construction of staffs, slabs, and beams is considered with the contraintsh of stress, displacement, and geometrical size. By analysing the property of such structure and taking full advantage of the structural characteristic, the author puts forward a basic theorem. The feasible direction method is then establi- shed, where the partical derivatives of activ constraint functions and linears programming are being dispensed with. Further... In the case of a layout being fixed, the optimum design of combination construction of staffs, slabs, and beams is considered with the contraintsh of stress, displacement, and geometrical size. By analysing the property of such structure and taking full advantage of the structural characteristic, the author puts forward a basic theorem. The feasible direction method is then establi- shed, where the partical derivatives of activ constraint functions and linears programming are being dispensed with. Further , the application of this met hod can be extended to such structure that allows a geometric change in its layout. The present method has been sucessfully applied to solye some prac- tical problems. The numerical results have eloquently demonstrated the ver- satility and efficacy of the method. 对于结构布局已定，在应力、位移、几何约束条件下的杆、板、梁组合结构优化设计问题，作者在对结构问题的性质进行分析并充分利用结构性质的基础上，建立了基本定理；导出了不需要对有效约束求偏导数及求解线性规划的可行方向法．这种方法已推广到结构布局可调的优化设计问题．这种方法已求解了一些实际问题。实践表明这种方法是非常有效的，生命力是很强的． << 更多相关文摘
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