approximation model meaning in English
近似模式
Examples
- 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。
Related Words
- approximation algorithm
- approximation principles
- traditional approximation
- approximation problem
- overall approximation
- numerical approximation
- mean approximation
- approximation process
- approximation theory
- approximation points
- approximation method
- approximation methods in physics
- approximation of first degree
- approximation of function