Simulation of Tail Boom Vibrations Using Main Rotor-Fuselage Computational Fluid Dynamics (CFD)
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In this paper, fully-resolved rotor-fuselage interactional aerodynamics is used as the forcing term in a model based on the Euler-Bernoulli equation, aiming to simulate helicopter tail-boom vibration.Abstract:
In this work, fully-resolved rotor-fuselage interactional aerodynamics is used as the forcing term in a model based on the Euler-Bernoulli equation, aiming to simulate helicopter tail-boom vibration. The model is based on linear beam analysis and captures the effect of the blade-passing as well as the effect of the changing force direction on the boom. The Computational Fluid Dynamics (CFD) results were obtained using a well-validated helicopter simulation tool. Results for the tail-boom vibration are not validated due to lack of experimental data, but were obtained using an established analytical approach and serve to demonstrate the strong effect of aerodynamics on tail-boom aeroelastic behavior.read more
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Advances in Vibroacoustics and Aeroacustics of Aerospace and Automotive Systems
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Review on the Vibration Suppression of Cantilever Beam through Piezoelectric Materials
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The Influence of Rotor Overlapping Azimuth on Compound Coaxial Helicopter Performance Based on Unsteady CFD Simulation
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References
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Book
Vibration problems in engineering
TL;DR: In this article, the Probleme dynamique and Vibration were used for propagation of ondes reference records created on 2004-09-07, modified on 2016-08-08.
Journal ArticleDOI
Reassessment of the scale-determining equation for advanced turbulence models
TL;DR: In this paper, a two-equation turbulence model is proposed that is shown to be quite accurate for attached boundary layers in adverse pressure gradient, compressible boundary layers, and free shear flows.
Experimental and Analytical Studies of a Model Helicopter Rotor in Hover
F. X. Caradonna,C. Tung +1 more
TL;DR: In this paper, a benchmark test to aid the development of various rotor performance codes was conducted, where simultaneous blade pressure measurements and tip vortex surveys were made for a wide range of tip Mach numbers including the transonic flow regime.
Journal ArticleDOI
A framework for CFD analysis of helicopter rotors in hover and forward flight
TL;DR: In this paper, a framework is described and demonstrated for CFD analysis of helicopter rotors in hover and forward flight, where the rotor blades are assumed to be rigid and the rotor to be fully articulated with separate hinges for each blade.
Journal ArticleDOI
Review of numerical simulations for high-speed, turbulent cavity flows
S. J. Lawson,George N. Barakos +1 more
TL;DR: In this article, a detailed overview of the current status of the experimental and computational progress over the past twenty years is summarised in this paper, along with a summary of these methods.