Phased array ultrasonic testing can accomplish dynamic focusing , obtain visual image , inspect component of complex geometry . also it can improve detection sensitivity , resolution and snr , so it has recently been highly recognized in ndt research domain 它具有能进行动态聚焦、可进行成像检测、可检测复杂形状物体、能提高检测灵敏度、分辨力和信噪比的多项优点，近年来正成为国际无损检测界的研究热点。
2 ) the course to resolve the inverse kinematics is improved . the inverse kinematics method based on those dispersed placement positions is raised . this new method can ensure that the real fiber route matches up to the designed ones while improving the quality of placement 2 )改进了铺丝逆运动学求解,提出了基于铺丝离散点位置的逆运动学求解方法,保证了铺放复杂形状芯模时铺丝实际路径与设计路径的一致性,从而提高了铺丝质量。
Moreover , the advantage of this method is obvious and outstanding in computational resolution and efficiency . at the end of this paper the feasibility and possibility to enlarge the range of application of dsmc - ip method to structural grid with curvature geometry are discussed 最后,为了拓宽本文发展的数值计算二维微尺度流动程序的使用范围,使其具备能够模拟不规则复杂形状流场的能力,讨论分析了可对任意几何形状、多块结构化网格进行计算的相关算法。
The variable bandwidth local linear regression method we used in this paper have the advantages of both the local linear regression method and the variable bandwidth idea . the variable bandwidth henced the flexibility of the estimation . and it make this method can fit the spacial complex curve very well . and the asymptotic results of the estimation found the theoretic base for find the best variable bandwidth and drive the pratical best variable bandwidth from data directly 本文所用的变窗宽局部线性回归方法，继承了局部线性回归的优点，并且使用变窗宽提高了所得估计的可塑性。并使之能成功地处理空间非齐次曲线等复杂形状的曲线拟合问题。所得估计的渐近结果为求渐近最优窗宽方案以及直接从数据估计最优变窗宽提供了理论基础。
Grids of high quality are generated by the arithmetic of the software , and results of computation become more accurate . grid data is generated independently and the fem programs are more easily to write . the main work included in the paper is as follows : resonant frequencies of cavities with complicated shapes or complex materials filled are analyzed 本文结合自动剖分技术所完成的主要工作包括以下几个方面：应用eb - fem对复杂形状以及复杂介质填充腔体的谐振频率进行了分析，讨论了运用eb - fem分析此类问题的优越性，数值结果对实际的谐振腔设计具有参考价值。
The analysis in this paper have been verified by experiment firstly , the structure and mechanical characteristics of sliding - plug door are described in this paper . secondly , on the base of the study of the work condition and limited load , the dynamic load - time curve is created . and then the finite element model of sliding - plug door is built by using material equivalent 本文首先总结和探讨了塞拉门的结构特点和力学特性；然后探讨了塞拉门的极限工况，即列车交会压力波的作用形式，建立了简化的作用于塞拉门上的动力学载荷曲线；其次研究了复杂形状复合材料层合板结构的建模方法，采用物理等效方式减小了计算规模，建立了复合材料门板的有限元模型，并对各种设定的载荷形式进行了数值模拟。
Compared with traditional optical materials , the specific stiffness of sic is much bigger . if the structural dimension is the same , the lightweight extent of sic components is the highest . furthermore , sic have these merits of low thermal distortion , excellent optical performance , isotropy , innocuity and molding for complex shape 与传统光学材料相比， sic的比刚度最大，在尺寸相同的条件下，其轻量化程度最高；此外，它还具有热变形系数小、光学性能好、各向同性、无毒、能够实现复杂形状的近净尺寸成型等优点，因而成为空间反射镜的首选材料。
Viscous pressure forming ( vpf ) is a new sheet flexible forming process developed in 1990s , which is suitable for the forming of high strength , low plasticity and difficulty deformation materials and has wide application in automotive manufacturing and aeronautic industry 粘性介质压力成形( viscouspressureforming , vpf )是20世纪90年代提出的一种新的板材软模成形技术,适合于低塑性、高强度、难变形材料复杂形状件的成形,在航空航天、汽车制造等工业领域有着广阔的发展空间。
Three dimensional braided composite is one kind of textile composite . structures with complex shape can be manufactured easily by three dimensional braiding technologies . three dimensional braided composite has higher impact resistance and higher damage tolerance than other textile composite have 三维编织复合材料是纺织复合材料的一种，三维编织技术可以制造任意复杂形状的构件并且三维编织复合材料具有更高的抗冲击性能和损伤容限，使三维编织复合材料的研究受到高度的关注。
This kind piezocomposite not only possesses properties of the piezoelectric ceramic and the polymer , but also overcomes the disadvantage of each single material . it contains many fine properties such as the high piezoelectricity , low brittleness , density and dielectric constant . and it also can be easy made into various shape products and thin slice 由于这种复合材料兼有组成复合材料各组分的性能，克服了陶瓷和聚合物两者的不足，具有强压电性、脆性低、密度和介电系数低、易制得大面积薄片以及复杂形状制品，制造工艺简单等优点。
