五次Hermite曲线在电缆路径设计中的应用研究  

Research and application of quintic Hermite curves on design of cable paths

作　　者：周培 郭广鑫 李莉 聂蓉梅 

机构地区：[1]北京宇航系统工程研究所,北京100076

出　　处：《计算机工程与应用》2015年第18期161-164,共4页Computer Engineering and Applications

基　　金：国家部委基础科研项目

摘　　要：利用五次Hermite曲线建立了满足电缆路径曲线段边界约束的数学模型,通过最小化Hermite曲线的近似应变能,保证了生成的路径曲线具有较佳光顺性,尽可能避免了多余的环圈和尖点等奇异现象,推导了计算路径曲线段最优参数的解析公式。进一步分析计算了路径曲线段的最小曲率半径,为电缆的最大直径阀值估算提供理论依据。The mathematical model satisfying the boundary conditions of the cable path curve segment is established by the quintic Hermite curve. By minimizing the approximate strain energy of Hermite curves, the resulting path curves own better fairness which eliminate the unwanted loops and sharp points as far as possible. Meanwhile the analytical formulas to compute the optimal parameters of path curves are deduced. To provide the theoretical foundation for the maximal cable radius evaluation, the minimal curvature radii of path curves are analyzed and computed further.

关 键 词：HERMITE曲线 计算机辅助几何设计 光顺性 优化 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]