Abstract:

Aiming at vibration fault of whole engine,whole engine model is established and dynamic characteristics are analyzed. A dynamic model of rotor-support system and stator bearing system is established,calculating the reaction force of stator bearing systemin rotor-support system as well as the vibration and response characteristics.The whole engine mechanical simulation and analysis platform is constructed袁promoting research capability of vibration mechanics and diagnoing level of whole engine analysis.

Key words: whole aero-engine vibration, dynamic model, finite element analysis, vibration response speciality