Aviation Key Laboratory of Science and Technology on Materials and Application Research for Vibration and Noise Reduction AECC Beijing Institute of Aeronautical Materials Beijing 100095 China;
Aviation Key Laboratory of Science and Technology on Materials and Application Research for Vibration and Noise Reduction AECC Beijing Institute of Aeronautical Materials Beijing 100095 China;
aero engine; noise; acoustic liner; Helmholtz resonators; composites;