Lixi was educated at Beijing University of Aeronautics and Astronautics (BUAA) and University of Cambridge. His BEng and MPhil degrees from BUAA were in the field of aerospace engineering (jet propulsion), while the topic of his PhD study at Cambridge was theoretical acoustics and respiratory biomechanics. He spent 8 years each in Beijing and Cambridge before coming to Hong Kong in 1996. After completing his PhD work in 1991, he worked as a research associate at the Whittle Lab (of turbomachinery), then as a college research fellow at Peterhouse, both within the University of Cambridge. His work on the mechanism of human snoring helped his medical/surgical colleagues devise a successful laser surgery procedure in the early 1990s, and the related pursuit in fluid mechanics touched upon the fundamentals of fluid-structure energy transfer mechanisms. Before joining the University of Hong Kong in 2006, he taught at HK PolyU Mechanical Engineering and served as a leader for the teaching group of of acoustics and vibration. The focus of his research in the last decade has been noise control and his research projects have been funded by the Hong Kong Government funding agencies (RGC, ITF), industry (e.g. Intel Corporation in the USA), and Chinese governments (“973” projects, and Department of Science and Technology, Zhejiang Province, PRC).
His current research interests are (a) aerodynamics and acoustics with application to aeronautical and general engineering, (b) innovative broadband noise control with applications to environmental noise, and (c) flow induced vibration and interaction with sound.