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随机激励作用下飞机飞行姿态动力学研究

李海泉1,陈小前2,张嘉图3,王亮3   

  1. 1. 国防科技大学
    2. 军事科学院
    3.
  • 收稿日期:2021-01-07 修回日期:2021-02-03 出版日期:2021-02-08 发布日期:2021-02-08
  • 通讯作者: 李海泉
  • 基金资助:
    随机碰撞振动系统的动力学行为及其算法与应用研究

The research on the stochastic dynamics of the aircraft flight attitude

  • Received:2021-01-07 Revised:2021-02-03 Online:2021-02-08 Published:2021-02-08
  • Contact: Hai-Quan LI

摘要: 在不考虑客观随机因素的飞机飞行姿态动力学建模和仿真过程中,仿真结果通常与飞行实测数据具有一定的偏差。本文以飞行实测数据的统计分析为基础,研究了一种具有随机激励的飞行姿态动力学建模方法,并采用随机动力学的研究手段对飞机的飞行动力学问题进行仿真分析。计算结果显示,随机因素对于飞行姿态具有显著的影响,且考虑随机因素的仿真模型响应能够比确定性响应更精准的模拟飞机在真实环境中的飞行状态,为下一步精准分析飞行姿态提供了新的思路。

关键词: 飞行姿态动力学, 随机因素, 随机响应, 飞行实测数据, 仿真模型

Abstract: In the process of aircraft flight dynamics modeling and calculation, the simulation results are usually deviated from the flight real data to some extent without considering the random factors. In this paper, based on the statistical anal-ysis of the actual flight data, a modeling method of flight attitude dynamics with random excitation is studied, and the flight dynamics of aircraft is simulated and analyzed by means of stochastic dynamics. The calculation results show that the random factors have a significant impact on the response of the simulation model, and the stochastic re-sponse can simulate the flight status of the aircraft in the real environment more accurately than the deterministic case, which provides a new idea for the precise analysis of the flight attitude in the future.

Key words: random factors, aircraft flight attitude dynamics, stochastic response, flight real data, simulation model

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