Aerothermoelastic coupling dynamic model of panel flutter with time delay of heat transfer

LI Kai-lun; ZHANG Jia-zhong; ZHOU Zhen-tang

Chinese

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Aerothermoelastic coupling dynamic model of panel flutter with time delay of heat transfer

更新时间：2026-07-07

- Aerothermoelastic coupling dynamic model of panel flutter with time delay of heat transfer
- Vol. 26, Issue 10, (2011)
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  2. 白城师范学院机电工程系,吉林,白城,137000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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LI Kai-lun, ZHANG Jia-zhong, ZHOU Zhen-tang. Aerothermoelastic coupling dynamic model of panel flutter with time delay of heat transfer[J]. 2011, 26(10).
DOI：

LI Kai-lun, ZHANG Jia-zhong, ZHOU Zhen-tang. Aerothermoelastic coupling dynamic model of panel flutter with time delay of heat transfer[J]. 2011, 26(10). DOI：

摘要

为了对高超声速下飞行器薄壁结构的振动行为进行研究

建立了一种考虑传热时间迟滞影响的二维无限长薄板的热气动弹性耦合振荡模型.同时

给出了只考虑有限历史时间影响的板内温度分布表达式

并对提出的温度表达式的精确性进行了数学证明

从而将以往被忽略掉的热应力产生的板内力矩引入薄板振动方程.数值模拟结果表明:气动力是薄板振动的主要驱动力

板内力的作用相当于外部预紧力

而板内力矩的变化会驱使薄板进行小振幅振动.综合以上三种因素

对薄板在这三种因素耦合情况下的振动行为进行了研究

发现在来流马赫数较大时

薄板会进入十分复杂的振动状态.最后

通过非线性动力学理论对薄板的振动行为进行了分析

发现了薄板振动中的分岔、混沌等现象

以及通向该类现象的途径.

Abstract

A two-dimensional infinite aerothermoelastic dynamic model of panel flutter

in which the heat transfer with time delay has been considered

was established to investigate the flutter behaviors of the panel structures of aircraft in hypersonic flow. In this study

a new model for the temperature distribution in the panel was presented considering only the finite temporal history effects

and proved mathematically for the accuracy.Then

the internal moment in the panel

which is neglected in existing model

was successfully introduced into the panel flutter model.From the numerical results

it can be seen that the aerodynamic pressure is a main driving force of the panel flutter

the internal force acts as an external pre-tightening force on two sides of the panel

and the internal moment drives vibration of the panel with small amplitude.Taking all the factors mentioned above into account

the vibration of the panel under aerothermoelastic coupling was studied in detail.It is found that the vibration becomes very complex as the Mach number is large.Finally

some kind of nonlinear dynamical behaviors were captured and analyzed by nonlinear dynamical theory.

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