approximation model造句
例句与造句
- Analyses how to apply and manage rsm in integrated missile design , and design an approximation modeling tool
对响应面模型在导弹总体设计中的应用和管理进行了分析,设计了近似建模工具。 - So we adopt some approximation modeling method for reducing the complexity of optimization design and cut down the quantity of computation
为了降低问题的复杂复杂程度,减少计算量,需要采用一定的近似建模方法。 - The thesis studies the generalized rough set models and proposes a multi - level rough set approximation model cbm - rs based on a covering of the universe
作者研究了粗糙集扩展理论，提出了一种多层粗糙集模型cbm - rs 。该模型是一种基于覆盖的扩展的多层粗糙集模型。 - Finally , an approximation modeling tool in prototype of optimization system was implemented , and demonstrate the capacity of approximation optimization in this system using an application example
最后在导弹总体一体化集成优化平台原型系统中设计开发了近似建模工具,并用一个算例演示了该优化系统的近似优化功能。 - The shifts of absorption edge of nanocrystsls compared with that of bulk have been calculated by means of effect - mass approximation model . the calculation and experimental results looked almost same
用有效质量近似模型( ema )计算了半导体纳米晶体的吸收边相对体材料的移动，并将理论结果和实验结果进行了比较，两者相符较好。 - It's difficult to find approximation model in a sentence. 用approximation model造句挺难的
- Especially , the approximation model methods can be applied to the aerodynamic optimization design instead of the time - consuming computational fluid dynamics ( cfd ) analysis to shorten the design process and reduce the computational cost
在气动优化设计过程中，用该模型取代耗时的高精度的计算流体动力学分析，可以加速设计过程，降低设计成本。 - To reduce huge computation of the traditional stochastic optimization methods for engineering optimization , approximation model methods with acceptable accuracy for engineering design are developed based on the statistical theory
摘要针对在工程中完全采用随机类优化方法寻优时计算量过大的问题，应用统计学的方法发展了计算量小、在一定程度上可以保证设计准确性的近似模型方法。 - The major work and innovation of the dissertation can be concluded as following four aspects : we systematically study response surface models based on the approximation modeling method , and discuss the element which is important
论文的主要工作和创新点可以归纳为以下四点:在对近似建模方法进行研究的基础上,系统地研究了响应面模型,并对响应面模型的构建要素进行了讨论。 - In order to propose an efficient solution to approximating smooth or rough curves and surfaces . this thesis gives the fractal approximation models . we also give the satisfactory application of m odels in morphing
为了统一逼近光滑曲线曲面与具有分形特征的自然界复杂曲线曲面，本文研究了基于投影迭代函数系统模型的曲线曲面的统一分形逼近模型，并进一步给出了此模型在曲线曲面变形中的应用。 - The thesis also discusses the thermal blooming and physical of the heat halo produced by intense laser . the thesis emphasizes on otf and psf of atmospheric turbulence . taking three screen systems as the example , we get the ideal approximation model , especially the short - exposure otf
并介绍了强激光产生热晕的理论模型及其物理特性机理，重点介绍湍流大气的otf和psf ，以三种屏系统为例，得到湍流大气的理想近似模型，特别是短曝光otf 。 - An optimal hankel norm approximation model reduction method is used to reduce the equations of motion to lower order size . it is shown that the method is steady , efficient by numerical emulating . firstly , the influence of viscoelastic layer thickness and material properties , piezoelectric actuator layers thickness on the vibration suppression are investigated
采用最优hankel最小阶逼近降阶法对主被动混合阻尼结构的控制状态方程进行降阶，以附加主动约束阻尼层的梁结构为例，进行了数值仿真，结果表明：该方法是一种稳定的、高效的、鲁棒性很好的降阶方法。 - Based on a thorough research of the approximation modeling theories and technologies , this paper systematically analyses how to use response surface model ( rsm ) in calculation of optimization in integrated missile design , and provide approximation optimization scheme based on rsm , and then discuss the action of rsm in process of optimization
本文在对近似建模方法进行了系统的研究的基础上,主要对导弹总体设计优化系统中近似建模方法以及在优化中如何运用响应面模型进行了分析,并提出了基于rsm的导弹总体设计近似优化方案,讨论了在导弹总体优化过程中响应面模型的作用。 - Firstly , samples are determined by experimental design methods and size optimization of the structures corresponding to the samples is executed with nastran . secondly , an approximation model ( surrogate model ) based on the samples is derived using kriging method . thirdly , the optimal locations of structural elements are found by genetic algorithms ( ga ) because genetic algorithms can find global optimal solutions of surrogate model easily
基本思路是利用试验设计法选取样本点，并对样本点对应的结构进行尺寸优化，然后根据样本点和优化结果建立代理模型，再利用遗传算法求出设计变量最优解，进而得到结构最优解。 - In the aerodynamic optimization design of turbomachine , the approximation model methods enable to balance the computational cost and accuracy , whose successful applications in centrifugal compressor impeller , diffuser , and mixed - flow pump impeller designs are introduced to show a wide engineering foreground
基于统计学理论提出的近似模型方法有效地平衡了基于计算流体动力学分析的叶轮机械气动优化设计中计算成本和计算精度这一对矛盾，在离心压气机叶片扩压器、叶轮和混流泵叶轮设计等问题中得到了成功应用，展示了广阔的工程应用前景。 - The rsm approximation models can be efficiently used to reduce the number of exact cfd analysis , create smooth response functions and improve convergence of optimization algorithms . at the stage of rsm and sqp iterations , once the design cannot be improved based on rsm , exact analyses will be performed by 3d navier - stokes cfd
5 .在局部寻优阶段，采用了全三维流场数值模拟程序对近似模型进行校正，用sqp方法对近似模型进行局部寻优，既保证了气动性能分析的精度，又大大减少了实际数值模拟的总计算开销。