Structural dynamics of a gyrocopter: numerical approach in some emergency cases

Purpose This paper aims to present the assumptions, analysis and sample results of numerical modeling and analysis of dynamic events encountered in emergency cases during deployment of parachute rescue system (PRS) and hard landing of a small gyrocopter. The optimal design requires knowledge of stru...

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Bibliographic Details
Published in:Aircraft engineering 2018-05, Vol.90 (4), p.699-710
Main Authors: Dacko, Adam, Borkowski, Pawel, Lindstedt, Lukasz Pawel, Rzymkowski, Cezary, Rodzewicz, Miroslaw
Format: Article
Language:English
Subjects:
Aircraft
Aircraft components
Aluminum
Composite materials
Computer simulation
Design parameters
Eigenvalues
Emergency response
Hard landing
Light aircraft
Load
Mathematical models
Nastran
Simulation
Stress concentration
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Summary:Purpose This paper aims to present the assumptions, analysis and sample results of numerical modeling and analysis of dynamic events encountered in emergency cases during deployment of parachute rescue system (PRS) and hard landing of a small gyrocopter. The optimal design requires knowledge of structural loads and structural response – the information obtained often from experiment. Numerical simulation is presented as an alternative tool for estimating these data. Design/methodology/approach Structural analyses were performed using MSC.Nastran. Multibody simulations were done using MADYMO system. Findings Initial design parameters were evaluated and verified in numerical simulations. Some of the resulting conclusions were proven during the test flights. Practical implications Some chosen results of simulation of dynamic problems are presented. They can be useful as reference values for similar cases for light aircraft analysis. Originality/value The paper presents an alternative way of assessing structural response parameters in the case of emergency dynamic events of usage of PRS. The results can be used in other projects.
ISSN:1748-8842
1758-4213
DOI:10.1108/AEAT-11-2016-0217