Dr. Chongrui Liu
Xi’an Jiaotong University, China
Title: Research on Low-Frequency Broadband Sound Absorption Metamaterials and Their Engineering Applications
Abstract:
The
advancement of acoustic metamaterials has opened up a novel perspective for
addressing the challenge of low-frequency broadband noise control. Drawing
inspiration from the design principles of acoustic metamaterials, our team has
introduced efficient absorption
mechanisms for low-frequency sound, achieving flexible and efficient noise
control. We have developed efficient manufacturing processes for metamaterials,
compiled systematic research findings and solutions, and facilitated the
large-scale engineering applications of metamaterials. This report highlights
the recent progress in metamaterial design, device development, and equipment
applications, mainly including low-frequency broadband design methods for
sound-absorbing metamaterials, sound absorption performance optimization
methods, and related typical applications such as laboratories, anechoic
chambers, and sound barriers.
Biography:
Dr. Chongrui Liu received his BE degree in Mechanical Engineering from the Shandong University in 2010, MD degree and PHD degree in Mechanical Engineering from Xi'an Jiaotong University in 2013 and 2020. He served as assistant professor in School of Mechanical Engineering at Xi’an Jiaotong University from 2020 to 2024, and is currently associate professor in School of Mechanical Engineering at Xi’an Jiaotong University. Dr. Liu Chongrui specializes in research on vibration and noise control for modern equipment, applications of acoustic metamaterials. He has authored over 30 high-impact academic papers, which has garnered over 900 citations on Google Scholar, and among which 2 have been honored with the IOP Highly Cited Paper Award. He has submitted 10 patent applications for inventions and published a monograph titled "Acoustic Metamaterial Sound Absorption: Theory and Applications".