动载荷的识别方法

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doi:10.6052/1000-0992-14-049

杨智春,
贾有

西北工业大学航空学院结构动力学与控制研究所, 西安 710072

基金项目:高等学校学科创新引智计划资助项目(B07050)

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通讯作者:
杨智春，男, 博士, 教授, 固体力学博士生导师, 1992 年在西北工业大学获得博士学位

中图分类号:O327
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出版历程
- 收稿日期:2014-07-10
- 刊出日期:2015-08-30

The identification of dynamic loads

Institute of Structural Dynamics and Control, School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

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Corresponding author:Zhichun YANG

摘要

摘要:大多数情况下, 作用在工程结构上的动载荷, 如高性能战斗机在大攻角机动飞行时作用在垂尾结构上的抖振载荷, 是无法直接测量的, 只能通过测试结构在动载荷作用下的动态响应来识别出结构的动载荷. 首先阐述了动载荷识别的基本原理, 然后根据结构模型的特点, 将动载荷识别方法分为确定性结构的动载荷识别方法和不确定性结构的动载荷识别两大类, 对近些年国内外学者在这两方面的研究进展进行述评, 最后针对目前动载荷识别方法研究中所存在的问题, 提出有待深入探讨的课题.
- 动载荷识别/
- 正则化/
- 卡尔曼滤波/
- 人工智能/
- 不确定性
Abstract:Dynamic load is the basis for evaluating the vibration fatigue properties of engineering structures. In most cases, it is diffcult to directly measure the external dynamic loads acting on a vibrating structure. Thus research on the dynamic load identification methods plays an important role in many engineering fields. In this paper, we first summarize the basic principles of dynamic load identification. We classify the dynamic load identification methods into two categories, i.e., those for deterministic structures and those for structures with uncertainties. Then we review the advances in the study of dynamic load identification methods for these two kinds of structures achieved in recent years, respectively. Some open problems and future research topics on dynamic load identification are discussed.
- dynamic load identification/
- regularization/
- Karman filter/
- artificial intelligence/
- uncertainty

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参考文献 (87)

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