航空学报 > 2015, Vol. 36 Issue (11): 3578-3585   doi: 10.7527/S1000-6893.2015.0097

基于实测值的舰载机着舰下沉速度影响性分析

冯蕴雯1, 刘思宏1, 薛小锋1, 崔帅2, 潘文廷3   

  1. 1. 西北工业大学航空学院, 西安 710072;
    2. 中国科学院上海微小卫星工程中心, 上海 200050;
    3. 中国航空工业集团公司第一飞机设计研究院, 西安 710089
  • 收稿日期:2014-12-02 修回日期:2015-04-02 出版日期:2015-11-15 发布日期:2015-04-27
  • 通讯作者: 冯蕴雯,Tel.:029-88460383,E-mail:fengyunwen@nwpu.edu.cn E-mail:fengyunwen@nwpu.edu.cn
  • 作者简介:冯蕴雯,女,博士,教授。主要研究方向:飞行器设计与可靠性设计。Tel:029-88460383,E-mail:fengyunwen@nwpu.edu.cn;刘思宏,女,硕士研究生。主要研究方向:飞行器结构设计。Tel:029-88492045,E-mail:shlove123@nwpu.edu.cn;薛小锋,男,博士,讲师。主要研究方向:飞行器设计与可靠性设计。Tel:029-88460383,E-mail:xuexiaofeng@mail.nwpu.edu.cn;崔帅,男,硕士,高级工程师。主要研究方向:飞行器可靠性。Tel:029-88460383,E-mail:cshuai@eyou.com;潘文廷,男,硕士,高级工程师。主要研究方向:飞机起落架强度。Tel:029-88460383,E-mail:panwenting@nwpu.edu.cn
  • 基金资助:

    国家自然科学基金(10577015);航空科学基金(2008ZA53006,2006ZD53050)

Sinking velocity impact analysis of carrier-based aircraft based on test data

FENG Yunwen1, LIU Sihong1, XUE Xiaofeng1, CUI Shuai2, PAN Wenting3   

  1. 1. School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;
    2. Shanghai Engineering Center for Microsatellites, Chinese Academy of Sciences, Shanghai 200050, China;
    3. The First Aircraft Institute, AVIC, Xi'an 710089, China
  • Received:2014-12-02 Revised:2015-04-02 Online:2015-11-15 Published:2015-04-27
  • Supported by:

    National Natural Science Foundation of China (10577015);Aeronautical Science Foundation of China (2008ZA53006, 2006ZD53050)

摘要:

舰载机的着舰下沉速度是起落架设计的重要输入,对起落架和机体的结构重量有很大影响。为了探索舰载机使用环境下各相关参数对下沉速度的影响,基于E-2C的实测着舰数据,将多元统计学的相关分析方法应用到舰载机着舰参数影响性分析,分析了17个着舰参数与着舰下沉速度的相关性。结果表明飞机下滑角、甲板俯仰角与下沉速度呈高度相关,舰上接合速度与下沉速度呈中度相关,这三者对下沉速度有很大影响;并进一步对这4个着舰参数进行非线性回归分析,拟合了E-2C着舰下沉速度的计算式,所得回归模型决定系数为0.991,平均绝对误差为1.66%,拟合效果很好。

关键词: 舰载机, 着舰, 起落架, 下沉速度, 影响性分析

Abstract:

The sinking velocity of carrier-based aircraft is an important input for landing gear design and has a great influence on the weight of the landing gear and airframe structure. Aimed at exploring the effect of the various related landing parameters on sinking velocity for carrier-based aircraft in the actual service environment and based on E-2C measured landing data, correlation analysis of multivariate statistics is applied to the impact analysis of landing parameters on sinking velocity. Seventeen landing parameters are analyzed in the compaction-analysis and the results show that aircraft glide path angle and deck pitch angle are highly correlated with sinking velocity; engaging velocity is moderately correlated with sinking velocity. These three parameters have a great influence on sinking velocity. Nonlinear regression analysis is carried out on the four landing parameters and a fitting equation of E-2C sinking velocity is obtained. The coefficient of determination of the regression model is 0.991 and the mean absolute error is 1.66%, thus the model provides a preferable fitting effect.

Key words: carrier-based aircraft, landing, landing gear, sinking velocity, impact analysis

中图分类号: