Adaptive control method for frequency lock-in in transonic buffet flow

WANG Xu; REN Kai; GAO Chuanqiang; KONG Yinan; ZHANG Weiwei

doi:10.7638/kqdlxxb-2020.0085

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Adaptive control method for frequency lock-in in transonic buffet flow

更新时间：2026-05-28

- Adaptive control method for frequency lock-in in transonic buffet flow
- Vol. 38, Issue 5, Pages: 1011-1016(2020)
- 作者机构：
  
  1. 西北工业大学航空学院,西安,710072
  2. 中国空气动力研究与发展中心,绵阳,510700
- 作者简介：
- 基金信息：
- DOI：10.7638/kqdlxxb-2020.0085
  CLC： O354;V211.5
- Published：2020
- 稿件说明：
移动端阅览
王旭, 任凯, 高传强, 孔轶男, 张伟伟. 跨声速抖振锁频状态下的自适应控制方法[J]. 空气动力学学报, 2020, 38(5): 1011-1016.

WANG Xu, REN Kai, GAO Chuanqiang, et al. Adaptive control method for frequency lock-in in transonic buffet flow[J]. 2020, 38(5): 1011-1016.
王旭, 任凯, 高传强, 孔轶男, 张伟伟. 跨声速抖振锁频状态下的自适应控制方法[J]. 空气动力学学报, 2020, 38(5): 1011-1016. DOI： 10.7638/kqdlxxb-2020.0085.

WANG Xu, REN Kai, GAO Chuanqiang, et al. Adaptive control method for frequency lock-in in transonic buffet flow[J]. 2020, 38(5): 1011-1016. DOI： 10.7638/kqdlxxb-2020.0085.

摘要

跨声速流固耦合控制是气动弹性研究领域备受关注的研究分支，然而，由于锁频现象耦合模式的复杂性，针对该条件下的行之有效的流固耦合控制方法目前还不多见。考虑到抖振中锁频状态本质上为流动模态与结构模态的失稳，难以通过单一的控制律进行抑制。因此，提出了一种多反馈回路的无模型自适应控制方法，通过引入结构位移与气动力响应数据，结合无模型自适应控制方法，对马赫数0.7、迎角5.5°这一典型抖振状态下的流固耦合模型进行仿真状态下的闭环控制研究。结果表明通过引入结构与气动输出作为控制参数，可以对锁频失稳模式进行有效抑制，通过控制模式的切换，可以对锁频状态下的翼型流动、结构失稳进行控制。

Abstract

Transonic fluid-structure coupling control is a research branch that has attracted much attention in the field of aeroelastic research. However

due to the complexity of the frequency lock-in phenomenon coupling mode

research on fluid-structure coupling control methods in the chattering frequency-locked state is still relatively rare. Considering that the frequency-locked state in chattering is essentially the instability of the flow mode and the structural mode

it is difficult to suppress it by a single control law. Therefore

a model-free adaptive control method with multiple feedback loops is proposed. By introducing structural displacement and aerodynamic response data

combined with a model-free adaptive control method

the closed-loop control study under the simulation state of the fluid-structure coupling model at the typical buffeting state of 0.7 Mach and 5.5° angle of attack is carried out. The results show that by introducing structure and aerodynamic response as control parameters

the frequency-locking instability mode can be effectively suppressed

and by switching the control mode

the airfoil flow and structural instability in the frequency-locking state can be controlled.

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Keywords

references

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