Prediction of Flutter Boundary Using Flutter Margin for The Discrete-Time System

Saputra, Angga; Purabaya, R. Wibawa

doi:10.1088/1742-6596/1005/1/012019

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2018

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To this effect, accurate and effective flutter test data processing techniques are in high demand. One of the most popular flutter boundary prediction (FBP) methods currently is the damping-based method [2,3], which serves to extrapolate a curve fitted by the estimated structural modal damping factor against the airspeed to the abscissa while zero damping is considered the critical flutter criterion. The key to this type of FBP method is the accurate identification of modal damping factors.…”

Section: Introductionmentioning

confidence: 99%

Flutter Test Data Processing Based on Improved Hilbert-Huang Transform

Zheng

Liu

Duan

2018

Mathematical Problems in Engineering

View full text Add to dashboard Cite

Flutter tests are conducted primarily for the purpose of modal parameter estimation and flutter boundary prediction, the accuracy of which is severely affected by the acquired data quality, structural modal density, and nonstationary conditions. An improved Hilbert-Huang Transform (HHT) algorithm is presented in this paper which mitigates the typical mode mixing effect via modulation. The algorithm is validated by theory, by numerical simulation, and per actual flight flutter test data. The results show that the proposed method could extract the flutter model parameters and predict the flutter speed more accurately, which is feasible for the current flutter test data processing.

show abstract

Section: Introductionmentioning

confidence: 99%