In this dissertation I research the geometric structure of three-dimensionally braided composites and more build the unit cell (the obliquity model). According the theory of layer board we can obtain equations to calculate elastic constants.
文中研究了三维编织复合材料的几何结构，建立了单胞倾角模型，根据层合板理论推导出其弹性常数计算公式。
参考来源 - 三维编织C/SiC复合材料的弹性性能预报·2,447,543篇论文数据，部分数据来源于NoteExpress
研究了通过遗传算法模型优化设计侦察卫星轨道高度、轨道倾角、右升交点角及平近点角等轨道参数的方法。
Through the GA model, the orbital elements of each satellite such as altitude, inclination, RAAN and mean anomaly are optimized.
本文应用运动学理论，研究了任意回转体外表面上的变倾角变导程螺旋线的通用模型。
With the theory of kinematics, the universal model of changed Angle and variable pitch spiral groove on any turning surface is researched.
在反射界面存在倾角的情况下，基于水平层状速度模型的VSP成像会使归位不准确。
VSP imaging based on horizontally layered velocity model fails to yield desired results when seismic reflectors are not horizontal.
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