空气动力学学报2012，Vol.30Issue(5)：578-582,5.
转子陀螺效应对翼吊发动机机翼弯扭颤振特性影响研究
Gyroscopic effects on the engine rotor on the characteristics of wing bending-torsional flutter
周健斌 1章俊杰 2孟光1
作者信息
- 1. 中国商用飞机有限责任公司上海飞机设计研究院,上海201210
- 2. 上海交通大学机械系统与振动国家重点实验室,上海 200240
- 折叠
摘要
Abstract
Bending-torsional flutter equations of a wing-engine system have been derived, taking into account of the gyroscopic effects of the engine rotor on the wing structure. The connection between the wing and the engine was assumed to be stiff in the equation. Flutter characteristics of the wing with gyroscopic effect was analyzed. The results showed that, with the stiffness of the pylon ignored, the gyroscopic moment raised the flutter speed and flutter frequency of the system, whilst it didn t affect the inherent flutter mechanism. As a result, the gyroscopic effect on the flutter of the wing-engine system could be effectively modeled as a system damping, and the equivalent damping ratio rose with the rotational speed of the engine.关键词
弯扭颤振/陀螺效应/大型客机Key words
bending-torsional flutter/ gyroscopic effect/ large-scale aircraft分类
航空航天引用本文复制引用
周健斌,章俊杰,孟光..转子陀螺效应对翼吊发动机机翼弯扭颤振特性影响研究[J].空气动力学学报,2012,30(5):578-582,5.
