CAJ | 학술논문

首先探究了融合式翼梢小翼倾斜角、高度以及安装角对民用运输机气动特性的影响。然后基于多区域自由变形（FFD，free form deformation）技术、拉丁超立方取样方法（LHS，latin hypercube sam?pling）、Kriging 代理模型以及改进的粒子群算法构建优化设计系统，对融合式翼梢小翼应用优化系统，通过对 FFD 控制体框架的合理布置，实现了多个控制框架对融合式翼梢小翼的自由变形参数化设计。优化设计结果表明，设计后的融合式翼梢小翼较原始构型减阻效果有明显改善。并通过与“翼尖延伸”、“涡扩散器”和“双叉弯刀”等3种翼尖装置进行调参对比分析，得出一些对翼尖装置设计具有参考价值的结论。
수선탐구료융합식익소소익경사각、고도이급안장각대민용운수궤기동특성적영향。연후기우다구역자유변형（FFD，free form deformation）기술、랍정초립방취양방법（LHS，latin hypercube sam?pling）、Kriging 대리모형이급개진적입자군산법구건우화설계계통，대융합식익소소익응용우화계통，통과대 FFD 공제체광가적합리포치，실현료다개공제광가대융합식익소소익적자유변형삼수화설계。우화설계결과표명，설계후적융합식익소소익교원시구형감조효과유명현개선。병통과여“익첨연신”、“와확산기”화“쌍차만도”등3충익첨장치진행조삼대비분석，득출일사대익첨장치설계구유삼고개치적결론。
First we explore the influence on the aerodynamic characteristics of the tilt angle, height and angle of the installation of the blended winglet. Then, we build the optimization system with FFD technology, Latin hypercube sampling method, Kriging surrogate model and the improved particle swarm optimization algorithm. We apply this system to the blended winglet; through the appropriate arrangement of the FFD control body frame we achieve a framework for FFD parameterized design of multiple control winglets. Optimization results show that the drag of the designed blended winglets decrease obviously as compared with that of the original configuration. Compared with the parameter analysis of those three wingtip devices (“wingtip extension”, “eddy diffusion” and “double fork scimi?tar”), we draw some valuable conclusions for the design of wingtip devices.