时间：2024年3月30日（周六）上午9：00-12:00
地点：腾讯会议：942-152-855
主讲人：刘琪特别研究员
讲座主题： Understanding and forecasting complex dynamics of conceptual airfoil models under different types of random loadings
(不同类型随机载荷下典型机翼模型的复杂动力学)
摘要：An aircraft is inevitably subject to various uncertainties arising from parameters or external loadings such as turbulence, crosswind, acoustic pressure, etc., which have a significant impact on its flight safety. It is of utmost importance to understand and forecast the complex dynamics of conceptual airfoil models under different types of random loadings. The coupling between the structure nonlinearity and the loading uncertainty usually leads to complex vibrations and brings several difficulties in accurate modelling, response solving, and vibration suppression of complex airfoil models. In this talk, we will review our recent developments on complex dynamics especially stochastic dynamics and data-driven problems of conceptual airfoil models. Several potential research directions will also be highlighted. All findings contribute to improving the function, safety, and reliability of aircraft wing structures in complex service environments. These are joint works with Prof. Yong Xu (Northwestern Polytechnical University), A.P. Yongge Li (Northwestern Polytechnical University), A.P. Jinzhong Ma (Shanxi University), and Prof. Jürgen Kurths (PIK and Humboldt University).
个人简介
刘琪，日本东京工业大学特别研究员。本科与博士毕业于西北工业大学数学与统计学院，师从许勇教授。主要从事飞行器结构与强度、振动与控制、随机与非线性动力学等方面研究。曾获陕西省第六届研究生创新成果展一等奖（第一完成人）、陕西省振动工程学会科学技术一等奖（第四完成人）以及西北工业大学一等学业奖学金等。曾获2021年中德（CSC-DAAD）博士后奖学金项目，主持西北工业大学博士论文创新基金项目1项，参研国家自然科学基金重点国际合作研究项目和省部级项目等多项。已在相关领域国际期刊Nonlinear Dynamics、Journal of Sound and Vibration、Communications in Nonlinear Science and Numerical Simulation、Chaos等上发表学术论文20余篇。