Dr. Yuan-Ning Liu's work has involved pioneering research in the hydroelasticity mechanisms of complex surface ship and submarine structures, and he has played a prominent role in accelerating successful application of this advanced technology in ship design. His achievements in theoretical and applied research have resulted in the identification of certain acoustically-relevant vibration and wave propagation physical mechanisms which occur on ship hulls and can be numerically modeled.
Dr. Liu has developed novel and unique computational tools which have permitted new understanding of hull radiation characteristics and mechanisms. Many of the numerical models he developed have been verified and put into practice. In support of the Advanced Research Projects Agency (ARPA) Submarine Technology Program, he organized and managed a substantial research project to determine the sources and mechanisms of low frequency submarine acoustic radiation. He successfully developed and implemented new full-scale measurement techniques which provide required data to assess and understand the physics of low-frequency acoustic phenomena and complement his computer models. Many new measurement and analysis techniques were developed and successfully utilized during full-scale submarine experiments to identify and confirm hydroelasticity mechanisms. Dr. Liu's extensive knowledge of structural acoustics physics and his innovative capabilities for design evaluation are well known and valued by Navy communities.
Dr. Liu enjoys an outstanding international reputation in the field of structural acoustics. His work meets the highest scientific standards, and he holds a position of high distinction in engineering research and development. He is most worthy to receive the Solberg Award for 1994.