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Archive of Mechanical Engineering

The Journal of Committee on Machine Building of Polish Academy of Sciences

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CiteScore 2016: 0.44

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Volume 61, Issue 2


Helicopter Rotor Sailing by Non-Smooth Dynamics Co-Simulation

Kosymulacja Niegładkiej Dynamiki Łopat Helikoptera w Warunkach Żeglowania

Matteo Fancello / Marco Morandini / Pierangelo Masarati
Published Online: 2014-08-15 | DOI: https://doi.org/10.2478/meceng-2014-0015


This paper presents the application of a co-simulation approach for the simulation of frictional contact in general-purpose multibody dynamics to a rotorcraft dynamics problem. The proposed approach is based on the co-simulation of a main problem, which is described and solved as a set of differential algebraic equations, with a subproblem that is characterized by nonsmooth dynamics events and solved using a timestepping technique. The implementation and validation of the formulation is presented. The method is applied to the analysis of the droop and anti-flap contacts of helicopter rotor blades. Simulations focusing on the problem of blade sailing are conducted to understand the behavior and assess the validity of the method. For this purpose, the results obtained using a contact model based on Hertzian reaction forces at the interface are compared with those of the proposed approach.


W artykule przedstawiono problem dynamiki wiropłatu rozwiĄzany przy zastosowaniu ogólnej metody kosymulacji uŻywanej do symulacji kontaktu ciernego w dynamice układu wieloczłonowego. Proponowane podejście jest oparte na kosymulacji głównego problemu, opisanego i rozwiĄzanego jako układ algebraicznych równań róŻniczkowych wspólnie z podproblemem, który jest scharakteryzowany przez zdarzenia niegładkiej dynamiki i rozwiĄzany technikĄ kroków czasowych. Zaprezentowano implementację i walidację takiego sformułowania. Metodę zastosowano do analizy zwisu i łopotania łopatek wirnika helikoptera. By zrozumieć działanie metody i ocenić jej przydatność przeprowadzono symulacje dotyczĄce zachowania wirnika helikoptera w warunkach Żeglugi. Dla oceny metody porównano wyniki uzyskane przy uŻyciu modelu kontaktowego wykorzystujĄcego siły reakcji Hertza z wynikami uzyskanymi w proponowanym podejściu.

Key words:: multibody dynamics; nonsmooth dynamics; contact; timestepping methods; co-simulation


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About the article

Published Online: 2014-08-15

Citation Information: Archive of Mechanical Engineering, Volume 61, Issue 2, Pages 253–268, ISSN (Online) 2300-1895, DOI: https://doi.org/10.2478/meceng-2014-0015.

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© 2014 Matteo Fancello et. al.. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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