设计滤波器的方法 single pinking IIR
The basic theory and procedures of the spetral based fatigue analysis is discussed. Further research is mainly on improve the efficiency of loading approach, boundary condition and local details such as hatch corners.3) Research on the design wave approach.
首先论述了船舶结构疲劳评估谱分析方法的基本原理和计算过程，然后对于具体实施过程中的一些技术细节，如一些提高加载效率的方法、边界条件的处理以及角隅处应力的提取等在以往的基础上进行了进一步的研究(3)对疲劳评估的设计波法进行了研究。
参考来源 - 舰船结构疲劳强度评估方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
因而，疲劳评估设计波法就引起了人们的关注。
This has focused attention on the design wave approach for fatigue assessment.
考虑的具体方法是将PD反馈波控制与基于极点配置法设计的模态控制相结合。
The particular approach considered is that of collocated, PD feedback wave control combined with modal control designed using pole placement.
介绍了二级光谱的基本原理，给出了波差法设计复消色差物镜的方程组。
The principle of secondary spectrum is introduced and the equations of designing apochromatism objective lens based on wave aberration are presented.
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