航空科学技术2025，Vol.36Issue(2)：46-60,15.DOI:10.19452/j.issn1007-5453.2025.02.004
着舰载荷作用下发动机整机动态响应数值仿真研究
Numerical Simulation Study on the Dynamic Response of Engine Under Landing Load
摘要
Abstract
Landing loads,a typical load condition during the service life of an aircraft engine,have been the subject of extensive theoretical and experimental research on rotor system vibrations both domestically and internationally.While these studies have provided qualitative conclusions of considerable reference value,there remains a significant discrepancy between the model parameters employed and those of actual aircraft engine rotor systems,which complicates the accurate determination of vibration responses under landing loads.This paper presents the development of a comprehensive finite element model of the engine using commercial software to simulate the dynamic response of the entire engine under landing loads.The validity of the simulation method is confirmed through comparison with experimental data.The study examines the transmission of landing loads throughout the engine structure and the dynamic response of key components,offering a valuable numerical simulation approach for the structural safety design of turbofan engines.Results show that landing loads are transmitted from the main mounting section through the entire engine structure and exit via the auxiliary mounting section,with key components exhibiting distinct impact response characteristics under these conditions.关键词
航空发动机/着舰载荷/转子系统振动响应/载荷传递规律Key words
aero-engine/landing load/vibration response of rotor system/law of load transfer分类
航空航天引用本文复制引用
刘璐璐,吴泽宇,韩佳奇,罗刚,赵振华,陈伟..着舰载荷作用下发动机整机动态响应数值仿真研究[J].航空科学技术,2025,36(2):46-60,15.基金项目
航空科学基金(201941052001) Aeronautical Science Foundation of China(201941052001) （201941052001）
