A new sensitivity analysis for structural optimization of composite rotor blades
TLDR
In this article, a semi-analytical approach for the sensitivity derivatives for the structural dynamic, aero-elastic stability, and response characteristics of a rotor blade in hover and forward flight is presented.About:
This article is published in Mathematical and Computer Modelling.The article was published on 1994-02-01 and is currently open access. It has received 17 citations till now. The article focuses on the topics: Rotor (electric) & Aeroelasticity.read more
Citations
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Journal ArticleDOI
Survey of Recent Developments in Rotorcraft Design Optimization
TL;DR: The multidisciplinary nature of the helicopter engineering problems has led researchers to investigate formal optimization methods for the design process, but several issues have prevented it from becoming as popular or successful as structural optimization.
Journal ArticleDOI
Optimum design of a helicopter rotor for low vibration using aeroelastic analysis and response surface methods
TL;DR: In this article, the rotor blade is represented as an elastic cantilever beam undergoing flap and lag bending, elastic torsion and axial deformations, and response surface approximations are constructed for the objective function (vibratory hub loads).
Recent Applications Of Design Optimization To Rotorcraft - A Survey
TL;DR: A comprehensive survey of multidisciplinary design optimization applications to aerospace design has been recently presented by Sobieszczanski-Sobieski and Haftka as mentioned in this paper, with a focus on rotorcraft.
Aeroelasticity and structural optimization of composite helicopter rotor blades with swept tips
K. A. Yuan,P. P. Friedmann +1 more
TL;DR: In this article, an aeroelastic analysis capability for composite helicopter rotor blades with straight and swept tips is described, and its application to the simulation of helicopter vibration reduction through structural optimization.
References
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Book
Elements of Structural Optimization
TL;DR: In this article, the authors present an approach for the optimization of structural components of a ten-bar truss and a twenty-five-bar trestle in the context of structural optimization.
Journal ArticleDOI
Sensitivity of complex, internally coupled systems
TL;DR: In this paper, a method for computing sensitivity derivatives with respect to independent variables for complex, internally coupled systems, while avoiding the cost and inaccuracy of finite differencing performed on the entire system analysis, is presented.
Journal ArticleDOI
Helicopter vibration reduction using structural optimization with aeroelastic/multidisciplinary constraints - A survey
TL;DR: In this paper, a survey of the state-of-the-art in the field of structural optimization when applied to vibration reduction of helicopters in forward flight with aeroelastic and multidisciplinary constraints is presented.
Aeroelastic optimization of a helicopter rotor
Joon W. Lim,Inderjit Chopra +1 more
TL;DR: In this article, structural optimization of a hingeless rotor is investigated to reduce oscillatory hub loads while maintaining aero-elastic stability in forward flight, and the sensitivity derivatives of blade response, hub loads, and eigenvalues with respect to the design variables are derived using a direct analytical approach.
Proceedings ArticleDOI
Improved approximations for control augmented structural synthesis
H. L. Thomas,L. A. Schmit +1 more
TL;DR: In this paper, a control-augmented structural synthesis is presented for structure-control systems which can be modeled as an assemblage of beam, truss, and nonstructural mass elements augmented by a noncollocated direct output feedback control system.
Related Papers (5)
Aeroelastic Optimization of an Advanced Geometry Helicopter Rotor
Ranjan Ganguli,Inderjit Chopra +1 more
Aeroelastic optimization of a helicopter rotor to reduce vibration and dynamic stresses
Ranjan Ganguli,Inderjit Chopra +1 more
Structural optimization with aeroelastic constraints of rotor bladeswith straight and swept tips
Roberto Celi,Peretz P. Friedmann +1 more