无人机载荷谱研究

Q4 Engineering

Fatigue of Aircraft Structures Pub Date : 2014-08-21 DOI:10.2478/fas-2013-0004

M. Rodzewicz, D. Głowacki

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引用次数: 4

摘要

摘要本文介绍了一种应用于无人机负载谱估计的新方法。作者在LabVIEW环境中开发了许多工具，可以对飞行日志数据进行深入分析。一个主要的成果是分离了由转向引起的负载谱和由湍流引起的负载谱。基于P-M假设计算了两种主要载荷源对无人机机体疲劳寿命的显著影响。这种复合材料无人机机体疲劳试验方法需要考虑载荷变化率，因为载荷变化率可能会影响被测结构的疲劳寿命。本文提出了几种计算算法方案，并举例说明了试验和研究结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Investigations into Load Spectra of UAVS Aircraft

Abstract The paper contains a description of a novel approach to the load spectra estimation applied to UAVs. The authors have developed a number of tools in the LabVIEW environment enabling an in-depth analysis of flight-log data. One major achievement was the separation of the load spectra induced by steering and the load spectra induced by turbulence. The authors have shown a significant influence of both of the main load sources on the fatigue life of the UAV airframe, calculated based on the P-M hypothesis. This approach to fatigue testing of composite UAV airframes needs to take into account the rate of load variations as these may affect the fatigue life of tested structures. The paper presents several schemes of calculation algorithms and a number of well-illustrated examples of the tests and investigations results.

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来源期刊

Fatigue of Aircraft Structures Engineering-Safety, Risk, Reliability and Quality

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： The publication focuses on problems of aeronautical fatigue and structural integrity. The preferred topics include: full-scale fatigue testing of aircraft and aircraft structural components, fatigue of materials and structures, advanced materials and innovative structural concepts, damage tolerant design of aircraft structure, life extension and management of ageing fleets, structural health monitoring and loads, fatigue crack growth and life prediction methods, NDT inspections, airworthiness considerations.