2018
DOI: 10.1016/j.ast.2018.09.030
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Comprehensive optimization of aerodynamic noise and radar stealth for helicopter rotor based on Pareto solution

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Cited by 39 publications
(42 citation statements)
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“…where r 0 is the position vector of any point on the triangular facet, and ∆A represents the area of the triangular facet. The physical theory of diffraction (PTD) is used to solve the edge diffraction of the target model [3,5]; then, the target total RCS is the RCS sum of all facets and all splits:…”
Section: Dynamic Electromagnetic Scatteringmentioning
confidence: 99%
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“…where r 0 is the position vector of any point on the triangular facet, and ∆A represents the area of the triangular facet. The physical theory of diffraction (PTD) is used to solve the edge diffraction of the target model [3,5]; then, the target total RCS is the RCS sum of all facets and all splits:…”
Section: Dynamic Electromagnetic Scatteringmentioning
confidence: 99%
“…Low detectability technology is widely used in helicopters, fighter jets, and missiles, requiring the consideration of radar stealth for important components from the beginning, including cockpits, exhaust systems, and rotors [4,5]. The main rotor is the most important aerodynamic part of the helicopter, while the high-speed rotating rotor makes the aircraft have unique flight behavior and maneuverability [6,7].…”
Section: Introductionmentioning
confidence: 99%
“…Limited relevant research has been found on the subject, which is expected because of the confidential nature of military sensors and signatures. Nevertheless, there are examples such as [18,19], where sensors and signatures are included in the analysis. It is possible to publish if the focus is on methodologies and general results.…”
Section: Research Idea and Aimsmentioning
confidence: 99%
“…The finite difference method based on the concept of generalized scattering amplitude is applied to the scattering of electromagnetic waves by a two-dimensional airfoil where the wing here uses an improved NACA 4418 airfoil [15]. These studies are based on the electromagnetic scattering calculations when the target is static [16,17], while the engine has many high-speed rotating rotor parts [18,19], which obviously has a dynamic effect [20,21] on the electromagnetic scattering characteristics of the aircraft.…”
Section: Introductionmentioning
confidence: 99%
“…For the solution and calculation of rotor parts RCS, quasi-static methods are commonly used to simulate the rotation of the rotor [22][23][24]. This method is suitable for low-speed rotors or a small number of rotation angle sample points [18,22], and it is not enough for high-speed rotating targets including engine blades. The difficulty with this type of problem is that the rotor rotates at high speed and its support structure is still stationary or relatively stationary, which causes the grid data of the entire model to be constantly updated.…”
Section: Introductionmentioning
confidence: 99%