School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 ChinaKey Laboratory of Vibration and Control of Aero-Propulsion Systems(Ministry of Education) Northeastern University Shenyang 110819 China;
School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 ChinaKey Laboratory of Vibration and Control of Aero-Propulsion Systems(Ministry of Education) Northeastern University Shenyang 110819 China;
School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 ChinaKey Laboratory of Vibration and Control of Aero-Propulsion Systems(Ministry of Education) Northeastern University Shenyang 110819 China;
School of Mechanical Engineering and Automation Northeastern University Shenyang 110819 ChinaKey Laboratory of Vibration and Control of Aero-Propulsion Systems(Ministry of Education) Northeastern University Shenyang 110819 China;
composite material; hammering and frequency sweep test; structural parameter; natural frequency;