变体飞行器的运动学特性研究

doi:10.3969/j.issn.1009-086x.2021.06.007

现代防御技术 ›› 2021, Vol. 49 ›› Issue (6): 36-42.DOI: 10.3969/j.issn.1009-086x.2021.06.007

变体飞行器的运动学特性研究

吕铁钢, 陈国光

中北大学机电工程学院,山西太原 030051

收稿日期:2021-03-07 修回日期:2021-07-31 发布日期:2022-01-12
作者简介:吕铁钢(1989-),男,内蒙古赤峰人。博士生,研究方向为弹药工程与毁伤技术。通信地址:030051 山西省太原市尖草坪区中北大学机电工程学院 E-mail:759887376@qq.com

Study on Kinematics Characteristics of Variant Aircraft

LÜ Tie-gang, CHEN Guo-guang

North University of China,College of Mechatronics Engineering,Shanxi Taiyuan 030051,China

Received:2021-03-07 Revised:2021-07-31 Published:2022-01-12

摘要/Abstract

摘要： 为了解决飞行器机翼贮存空间大、运输困难等问题,以钻石背机翼为原型设计了纵向二次变形结构模型,用以寻求小型化的发射装置。通过拉格朗日方程建立了变形翼的结构动力学模型,分析了变形过程中的运动学特性,得到变形翼在展开运动过程中的动态方程。结果表明,变形翼振动能量的分布由外界对系统的激励或者作用大小决定,并且在不同马赫数下表现出不同的气动力特性,该建模方法满足变形翼张开过程中的运动学特性,可为变体飞行器工程设计与应用提供新的思路。

关键词: 变形, 拉格朗日方程, 结构动力学, 气动弹性, 多体, 稳定性

Abstract: In order to solve the problems of large storage space and difficult transportation of aircraft wing,a longitudinal secondary deformation structure model is designed based on the diamond-back wing to search for a miniaturized launcher.The structural dynamics model of the deformed wing is established by Lagrange equation.The kinematics characteristics of the deformed wing is analyzed,and the dynamic equations of the deformed wing in the process of unrolling are obtained.The results show that the distribution of the vibration energy of the deformed wing is determined by the external excitation or action on the system,and shows different aerodynamic characteristics at different Mach numbers.The modeling method satisfies the kinematics characteristics of the deformed wing during the opening process,which can provide a new idea for the engineering design and application of the variant aircraft.

Key words: deformed, Lagrange equation, structural dynamics, aeroelastic, multibody, stability

中图分类号:

吕铁钢, 陈国光. 变体飞行器的运动学特性研究[J]. 现代防御技术, 2021, 49(6): 36-42.

LÜ Tie-gang, CHEN Guo-guang. Study on Kinematics Characteristics of Variant Aircraft[J]. Modern Defense Technology, 2021, 49(6): 36-42.

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变体飞行器的运动学特性研究

Study on Kinematics Characteristics of Variant Aircraft

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