Academic Lecture by Dr. Fanzhou Zhao from Imperial College London
Speaker: Dr. Fanzhou Zhao
Host: Prof. Dingxi Wang
Time: 14:00am-16:00am, June 5, 2023
Place: Conference room 225, School of Power and Energy
主 题： 叶轮机气弹模拟
Topic: Turbomachinery Aeromechanical Modelling
Modern gas turbine design continues to move towards improved performance, reduced weight and reduced cost. As turbomachinery blade aerofoils are thinned to improve performance and reduce weight, aeroelastic issues such as flutter, forced response and stall driven vibrations become more predominant. Moreover, as the use of blisks (blade integrated-disks) with very low mechanical damping becomes more common in modern compressor designs, accurate prediction of compressor aeroelastic stability in a multi-row environment becomes vital. In this talk I will present a brief review of turbomachinery aeromechanical modelling methods and their challenges, with the focus on flutter.The aim is to summarise the unusual aeroelastic issues that we have observed in fans and multi-stage compressors. The focus of this talk is on flutter and blade passing forced response is not addressed here as their existence can be detected by a Campbell diagram.
Dr. Fanzhou Zhao is a research associate at the Vibration UTC, Imperial College London. He graduated from Imperial College in 2017 with a PhD degree on flutter of embedded blade rows in multi-stage axial compressors. Currently his research and interest are flutter of fans/compressors, stall and surge modelling of multi-stage compressors and their interaction with blade vibration, e.g. flutter in deep surge.