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RISFurther Improvements in the SNUF Blade Design by Numerical Design Optimization Framework
Publisher: American Society of Civil Engineers
Abstract: This paper focused on improving a small-scaled helicopter rotor blade prototype with a flap-driving mechanism termed the Seoul National University Flap (SNUF). The design of the SNUF included realizing vibratory load ...
Equivalent Structural Modeling Using Laminated Composite Shell Analysis for the Nozzle Component of a Launch Vehicle Engine
Publisher: American Society of Civil Engineers
Abstract: In this study, an equivalent structural modeling and structural analysis are proposed for the engine nozzle of a launch vehicle. A specific shell element that combines an optimal triangle (OPT) membrane element and a ...
Investigation of Linear Higher Harmonic Control Algorithm for Rotorcraft Vibration Reduction
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A linear quadratic Gaussian (LQG) controller for active vibratory loads reduction in helicopters is proposed based on a revisited higher harmonic control (HHC) input by active trailing-edge flaps (ATEFs). Conventional ...