飞机垂尾抖振极限载荷预测方法

杨智春;陈 帅;金 伟

振动与冲击 ›› 2012, Vol. 31 ›› Issue (13) : 1-4.

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (13) : 1-4.
论文

飞机垂尾抖振极限载荷预测方法

  • 杨智春1,陈 帅1,金 伟2
作者信息 +

Prediction of Ultimate Load for Aircraft Vertical Tail Buffeting

  • YANG Zhi-chun1, CHEN Shuai1,JIN Wei2
Author information +
文章历史 +

摘要

为满足先进战斗机高速、大机动飞行性能的要求,在飞机设计的强度估算与校核中必须考虑抖振载荷的影响,以保证飞机结构在全包线飞行状态中具有足够的强度。按照飞机飞行状态进行抖振飞行子状态划分建立起抖振载荷数据库的数据存储关系,提出根据有限测点处测试的抖振响应重构飞机垂尾结构抖振载荷的方法,并基于所选抖振飞行子状态载荷概率分布模型预测出抖振极限载荷。最后以某飞机垂尾上某节点的抖振极限载荷预测为例,演示用本文方法预测飞机垂尾抖振极限载荷流程。



Abstract

Abstract: Aimed to achieve high speed and large maneuverability performance, the buffet loads should be considered to provide adequate strength in all corners of the operational envelope. Buffet subcases are split according to flight conditions, which are employed to establish storing relations of data base for buffet load data. A method is proposed to reconstruct buffet loads from limited buffet response measurements. The ultimate load for aircraft vertical tail buffeting is predicted based on the selected probabilistic distribution model. Finally, the procedure of this method is illustrated by the prediction of ultimate load for an aircraft vertical tail buffeting.

关键词

抖振 / 极限载荷 / 载荷重构 / 概率分布模型 / 抖振飞行子状态

Key words

buffet / ultimate load / load reconstruction / probabilistic distribution model / buffet flight subcase

引用本文

导出引用
杨智春;陈 帅;金 伟. 飞机垂尾抖振极限载荷预测方法[J]. 振动与冲击, 2012, 31(13): 1-4
YANG Zhi-chun;CHEN Shuai;JIN Wei. Prediction of Ultimate Load for Aircraft Vertical Tail Buffeting[J]. Journal of Vibration and Shock, 2012, 31(13): 1-4

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