Topic: Flutter Control via Data-Driven Models
Speaker: Prof. Haiyan Hu, Beijing Institute of Technology
Date: Wednesday, November 15, 2023
Time: 11:00 PM (Asia/Shanghai)
3:00 PM (Europe/London)
Language: English
Link/QR code: https://cassyni.com/events/RenwSjoEDsst3Pd6orUV9w
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Abstract：
Active flutter suppression is a promising technology for advanced flight vehicles, but greatly relies on accurate and simple models of fluid-structure interaction. For example, it is a great challenge to establish such a model for the flutter controller of an aircraft subject to a transonic flow, which is nonlinear by nature. The lecture addresses how to construct a surrogate model from CFD data to predict the transonic flutter of an aircraft wing and to actively suppress it in a wide range of flow regime. The lecture presents how to use simple physical knowledge to improve both interpretability and generalizability of the surrogate model, which are two essential issues in data-driven modeling. The lecture also shows the design of a flutter controller via machine learning.
[1] Y. Tang et al. Efficient modeling and order reduction of new 3D beam elements with warping via absolute nodal coordinate formulation. Nonlinear Dynamics, 2022, 109(4): 2319-2354
[2] X. Yao et al. Enhanced nonlinear state–space identification for efficient transonic aeroelastic predictions. Journal of Fluids and Structures, 2023, 116: 103792
About the speaker:
Prof. Haiyan Hu
Chair Professor of Mechanics, School of Aerospace Engineering, Beijing Institute of Technology
Dr. Haiyan Hu is Professor of Mechanics at Beijing Institute of Technology, where he served as President from 2007 to 2017. Dr. Hu has made recognized contributions to the stability and bifurcations of nonlinear mechanical systems under delayed control, the wave dispersions of non-local elastic structures, the active flutter suppression of aircraft and the deployment dynamics of large space structures on orbit. He received The State Award of Natural Science of China twice and some other honors, such as Fellow of Chinese Academy of Sciences in 2007, Fellow of TWAS in 2010, International Member of Hungarian Academy of Sciences in 2022, and ASME Thomas K. Caughey Dynamics Medal in 2023.
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