Numerical investigation of the aerodynamic interaction between a tiltrotor and a tandem rotor during shipboard operations
Sign Up to like & getrecommendations! Published in 2019 at "Aerospace Science and Technology"
DOI: 10.1016/j.ast.2019.02.005
Abstract: Abstract Complex rotorcraft-to-rotorcraft interference problems occur during shipboard operations, and have a negative impact on safety. A vortex-based approach is used here to investigate the flow field and unsteady airloads of a tiltrotor affected by… read more here.
Keywords: rotor; tiltrotor; shipboard operations; tandem rotor ... See more keywords
Model Predictive Control of a Tandem-Rotor Helicopter With a Nonuniformly Spaced Prediction Horizon
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2022.3178785
Abstract: This letter considers model predictive control of a tandem-rotor helicopter. The error is formulated using the matrix Lie group $SE_{2}{(}3{)}$ . A reference trajectory to a target is calculated using a quartic guidance law, leveraging… read more here.
Keywords: control tandem; tandem rotor; control; horizon ... See more keywords
Spike type of stall inception in the tandem rotor
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"
DOI: 10.1177/09544062221104608
Abstract: There are two known mechanisms of inception of rotating stall in the compressor, modal wave inception and spike inception. However, the stall inception mechanisms for a tandem-rotor have not been explored so far in detail.… read more here.
Keywords: stall; inception; tandem rotor; spike ... See more keywords
The matching characteristics and flow mechanisms of partial-height booster rotor and fan rotor for a high-throughflow fan
Sign Up to like & getrecommendations! Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science"
DOI: 10.1177/09544062221110134
Abstract: Further enhancements in the throughflow capacity of the conventional fan in the turbofan engine are limited by its aerodynamic and geometric parameters, but the concept of a high-throughflow fan is expected to overcome this limitation.… read more here.
Keywords: high throughflow; tandem rotor; throughflow fan; fan ... See more keywords