taptap下载安装安卓学报 ›› 2025, Vol. 43 ›› Issue (1): 11-19.

• 民机安全性与适航 • 上一篇    下一篇

考虑全飞行阶段的防冰严酷工况确定及验证

胡雪兰, 王艺丹, 牛一凡, 姚佳伟
  

  1. taptap下载安装安卓中欧航空工程师学院,天津 300300
  • 收稿日期:2024-04-01 修回日期:2024-06-04 出版日期:2025-04-09 发布日期:2025-04-09
  • 作者简介:胡雪兰(1982— ),女,山东济宁人,教授,博士,研究方向为复合材料电热除冰数值分析
  • 基金资助:
    中国民用航空局安全能力建设基金项目(ASSA2022/11);中央高校基本科研业务费专项自然科学类重点项目(3122020082)

Determination and verification of severe anti-icing working conditions
during the entire flight phase

HU Xuelan, WANG Yidan, NIU Yifan, YAO Jiawei
  

  1. Sino-European Institute of Aviation Engineering, CAUC, Tianjin 300300, China 
  • Received:2024-04-01 Revised:2024-06-04 Online:2025-04-09 Published:2025-04-09

摘要:

确定满足适航要求的严酷工况是机翼结冰适航审定过程中的必要环节,传统的防冰严酷工况计算方法需
要大量重复计算,因此,本文结合拉丁超立方抽样和严酷评估指数提出了一种基于 CCAR-25 附录 C(简称
附录 C)的考虑全飞行阶段、全冰积聚条件确定严酷工况的简化方法,并利用计算流体力学模型验证其可
行性。 首先,基于附录 C 明确了结冰工况参数区间,利用拉丁超立方抽样实现了连续参数区间的离散化,获
得组合工况;其次,引入严酷评估指数,对结冰工况进行排序,并通过单变量结冰条件及连续最大结冰条件
下机翼结冰的计算流体力学仿真计算,验证了在相同冰型下该严酷评估指数可以以结冰量(包括结冰总质
量和最大结冰厚度)作为评价指标,用于严酷程度评估,证明了其绝对值越大,工况越严酷;等待阶段由于
飞行时间远大于其他飞行阶段,导致其结冰严酷程度最高,严酷工况均在等待阶段;最后,通过本文提出的
严酷工况确定方法给出了基于附录 C 的严酷工况。

关键词:

Abstract:

Determining the severe working conditions that meet the airworthiness requirements is a necessary step in the airworthiness certification process of wing icing, and traditional calculation methods of severe anti-icing working
conditions require a large amount of repetitive calculations, therefore, this article proposes a simplified method for
determining severe working conditions based on Appendix C of CCAR-25 (Appendix C) by combining Latin hypercube sampling and severity assessment index, considering the entire flight phase and full ice accumulation
conditions, and its feasibility is verified by computational fluid dynamics model. Firstly, based on Appendix C, the
parameter intervals for icing working conditions were clarified, and Latin hypercube sampling was used to discrete
the continuous parameter intervals and obtain the combined working conditions. Secondly, the severity assessment
index is introduced to rank the icing working conditions, and the computational fluid dynamics simulation calculation of wing icing under univariate icing working conditions and continuous maximum icing working conditions is
used to verify that the severity assessment index can be used as an evaluation index for severity assessment under
the same ice type, with the amount of icing (including the total mass of icing and the maximum icing thickness). It is
proved that the larger the absolute value, the more severe the working working conditions. Due to the significantly
longer flight time compared to other flight phases, the waiting phase has the highest degree of icing severity, and all
severe working conditions are in the waiting phase. Finally, the severe condition based on Appendix C are given by
the severe condition determination method proposed in this paper.

Key words:

中图分类号: 

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