报告题目：Nonlinear dynamics and vibration suppression of conceptual airfoil models with random loads

主讲人：许勇

时 间：2023年10月18日星期三上午10：00

地  点：理学院会议室306

主讲人简介：

西北工业大学教授，博士生导师，空天领域复杂性科学教育部重点实验室主任，德国洪堡学者(Experienced Researcher), 陕西省青年科技新星、陕西省青年科技奖和陕西省首届杰出青年基金获得者，西北工业大学优秀青年教师、翱翔青年学者。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研究。以第一完成人分别获陕西省科学技术一等奖、教育部自然科学二等奖、陕西省教学成果特等奖和国家教学成果二等奖，获第十一届陕西省青年科技奖。培养研究生获日本JSPS基金、德国洪堡基金和CSC-DAAD基金，陕西省研究生创新成果展一等奖2项和陕西省优秀博士学位论文等。担任Chaos, Nonlinear Dynamics, Complexity，Theoretical and Applied Mechanics Letters等期刊编委或副主编等。现任陕西省振动工程学会理事长、全国工业统计教学研究会副会长、中国数学会理事、中国振动工程学会理事、中国宇航学会飞行器任务规划专业委员会委员等。

摘要：

An aircraft in practice undergoes complex uncertain loads like turbulence, crosswind, pressure fluctuations, etc., that will have a substantial impact on its flight safety. It is of extreme significance to explore complex nonlinear dynamics and vibration control for a conceptual airfoil model with random loads. The coupling interaction between structure nonlinearities and stochasticities can lead to some difficulties on the airfoil models, including modelling, response solving, and vibration suppression. This talk will review our developments towards nonlinear dynamics and vibration suppression, especially for stochastic dynamics, early warning, and data-driven problems, of the conceptual two-dimensional airfoil models. All the findings would be helpful in ensuring the flight safety and enhancing the strength and reliability of airfoil structure operating at complex flight conditions. Besides, several potential directions that are worth further exploring are also highlighted.