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Content available Predictive Models for Transient Loads of the Vertical Stabilizer of an Aircraft developed using Canonican Correlation Analision
Dziendzikowski M., Zieliński W., Obrycki Ł., Woch M., Synaszko P., Dragan K., Leski A.
Fatigue of Aircraft Structures
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2015
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Iss. 7
41--46
EN
Knowledge about loads occurring in the structure during aircraft operation is vital from the point of view of the damage tolerance approach to aircraft design. In the best-life scenario, such information could be available from a network of sensors, e.g. strain gauges, installed in the aircraft structure to measure local stresses. However, operational loads monitoring (OLM) systems are still not widely applied. Instead, what is available is a set of flight parameters, which by the laws of inertia and aerodynamics help determine the dominant part of loads acting on a given element. This paper discusses the canonical correlation analysis (CCA) as a method for selecting the flight parameters used to predict aircraft loads. CCA allows for the identification of both different modes of stress distribution as well as flight parameters which are best suited for their prediction. The paper presents the application of this method to identify loads acting on the vertical stabilizer of an aircraft.
2
Content available The Cracks Propagation Calculations in the PZL-130 Orlik Structure
Kurdelski M., Obrycki Ł.
Fatigue of Aircraft Structures
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2010
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Iss. 2
59--68
EN
The article presents the results of research carried out under a research project on the evaluation of fatigue life. The subject of the analysis was the critical elements of the PZL-130 Orlik. The numerical crack growth analyses were performed using the NASGRO equation. The Orlik aircraft are mainly used for the basic pilot training in the Polish Air Force. Each airplane is equipped with a digital flight data recorder. The record of more than 36000 flight hours is the basis for numerical analysis of fatigue life.
3
Content available Representative Load Sequence for the PZL-130 Orlik
Leski A., Obrycki Ł.
Fatigue of Aircraft Structures
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2010
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Iss. 2
69--78
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