An active damping vibration control system for wind tunnel models

Liu, Wei; Zhou, Mengde; Wen, Zhengquan; Yao, Zhuang; Liu, Yu; Wang, Shihong; Cui, Xiaochun; Xiao, Li; Li, Bing; Jia, Zhenyuan

doi:10.1016/j.cja.2019.04.014

Cited by 27 publications

(10 citation statements)

References 16 publications

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“…The evaluation tests of three controllers were conducted in a transonic wind tunnel and 80% reduction of vibration amplitude was achieved by NNPID and LQR algorithm (Chen et al, 2014). Liu et al (2019) presented a self-adaptive fuzzy PD control method with the self-tuning ability of control parameters and the results indicated that the damping ratio was improved more than four times.…”

Section: Introductionmentioning

confidence: 99%

An active piezoelectric damping vibration control system for the sting used in wind tunnel

Huang,

Shen,

Wang

et al. 2023

Journal of Intelligent Material Systems and Structures

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In wind tunnel tests, the cantilever sting supporting system often suffers from low-frequency and large-amplitude resonance due to its inherent low structural damping characteristic, resulting in the degradation of data quality and structural safety. To improve wind tunnel testing safety and data accuracy, this paper is dedicated to establish an active vibration control system using piezoelectric stack actuators. A novel methodology of vibration monitoring based on modal transformation, which uses measured strain and a Strain-to-Displacement Transformation (SDT) matrix to reconstruct dynamic displacement field, is proposed herein. Meanwhile, strain sensor positions are optimized by an improved Particle Swarm Optimization (PSO) algorithm to reduce systematic estimation errors of this method. Furthermore, a Back-Propagated Neutral Network (BPNN) is established to implement a self-adaptive control strategy. A series of verification tests are performed to demonstrate the validity of the proposed system. Experimental results indicate that the relative Root Mean Square Error (RMSE) between estimated vibration displacement and measured vibration displacement is less than 3%, and a vibration attenuation of over 14 dB/Hz is achieved in ground tests, proving the superiority of this intelligent active vibration suppression system.

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Section: Introductionmentioning

confidence: 99%

An active piezoelectric damping vibration control system for the sting used in wind tunnel

Huang,

Shen,

Wang

et al. 2023

Journal of Intelligent Material Systems and Structures

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show abstract

“…This can also result in low-frequency, high-amplitude resonance, which leads to poor data quality and limited test range. To achieve the planned range of tests and obtain high-quality results, an active vibration control system can be used [22]. This system is based on stacked piezoelectric actuators with velocity feedback read by an accelerometer.…”

Section: Introductionmentioning

confidence: 99%

Measurements of Aerodynamic Performance of the Fuselage of a Hybrid Multi-Rotor Aircraft with Autorotation Capability

Czyż

Karpiński

Skiba

et al. 2022

IREASE

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The design and optimization of aircraft structures need to be accompanied by the analysis of their aerodynamics. This paper presents numerical calculations and wind tunnel tests to determine the aerodynamic characteristics of the designed unmanned aircraft. The aim of the study was to analyze the aerodynamic performance of the designed hybrid unmanned aerial vehicle and its longitudinal stability. This unique design, i.e. a hybrid aircraft which is a combination of a gyrocopter and a multi-rotor aircraft has not been the object of research yet. The research object is a 1:1 scale model created by the rapid prototyping method. The research was a computational and experimental study. The ANSYS Fluent software was used for the calculations, and the computational mesh of the developed model consisted of 3.5 million tetrahedral elements. The numerical investigations were carried out using the created CFD model with a k-ω turbulence submodel. In addition, the obtained results made it possible to numerically analyze the forces acting on the individual components of the research object, which is a valuable extension of the wind tunnel tests. The experimental studies were performed in a closed-loop subsonic wind tunnel. Aerodynamic forces and moments were measured using a six-component force balance. The obtained results were compared to validate the developed numerical model. The research values describe the performance of the research object in terms of minimum drag force coefficient, maximum lift to drag ratio, and properties related to stability.

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“…Passive vibration isolation method has better high frequency vibration isolation capability, while active vibration isolation mainly has good suppression effect on low frequency vibration, including many methods, [9][10][11][12][13] such as PID control, adaptive control, component synthesis method, etc. Active-passive integrated vibration isolation method combines the advantages of the two and expands the vibration isolation bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Adaptive robust sliding mode simultaneous control of spacecraft attitude and micro-vibration based on magnetically suspended control and sensitive gyro

Ren

Chen

Cai

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part G:

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This paper puts forward realizing the synchronous control of spacecraft attitude and micro-vibration by taking advantage of magnetic suspension rotor deflection of magnetically suspended control and sensitive gyro. A disturbance-observer is designed to estimate the complex micro vibration which is hard to measure, and an adaptive robust sliding mode controller is designed as an integrated controller and its stability is proven by Lyapunov stability criterion. The band-pass filters are introduced to separate low frequency and high frequency control signals and takes them as input commands of gyro frame and magnetic suspension rotor, respectively. The semi-physical simulation results testify that the proposed method has good vibration suppression effect as well as improves the attitude convergence rate.

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An active damping vibration control system for wind tunnel models

Cited by 27 publications

References 16 publications

An active piezoelectric damping vibration control system for the sting used in wind tunnel

An active piezoelectric damping vibration control system for the sting used in wind tunnel

Measurements of Aerodynamic Performance of the Fuselage of a Hybrid Multi-Rotor Aircraft with Autorotation Capability

Adaptive robust sliding mode simultaneous control of spacecraft attitude and micro-vibration based on magnetically suspended control and sensitive gyro

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