航空工程进展2026，Vol.17Issue(2)：178-189,12.DOI:10.16615/j.cnki.1674-8190.2026.02.19
热防护系统内形曲面的一种光顺算法
A smooth algorithm for endomorphic surfaces in thermal protection systems
魏彪 1王志瑾1
作者信息
- 1. 南京航空航天大学 航空学院,南京 210016
- 折叠
摘要
Abstract
The re-entry vehicle will experience severe heat flow loads during its return to the atmosphere,requiring the design of an insulated tile-type thermal protection system for the vehicle.Due to the differences in the heat flow density distribution on the surface of the vehicle,a step in the thickness of the designed thermal protection system occurs,resulting in a poorly shaped internal surface of the thermal protection system,which is not smooth.The ar-ticle proposes a smoothing algorithm for the endomorphic surface,which takes the position of the endomorphic sur-face type value points of the thermal protection system as the optimization object to smoothen the endomorphic sur-face,and fits the smoothened double-three times B-spline surface according to the coordinates of the processed en-domorphic surface type value points,and the folding inflection angle of each node of the endomorphic surface is re-duced to less than 10° which solves the thickness step problem of the thermal protection system.The method is an effective smoothing algorithm.关键词
再入式运载器/热防护系统/厚度阶跃/B样条/曲面光顺Key words
re-entry vehicle/thermal protection system/thickness step/B-splines/surface smoothing分类
航空航天引用本文复制引用
魏彪,王志瑾..热防护系统内形曲面的一种光顺算法[J].航空工程进展,2026,17(2):178-189,12.
