Open doors for bob and mallory: Open port usage in android apps and security implications
Open ports are typically used by server software to serve remote clients, and the usage
historically leads to remote exploitation due to insufficient protection. Smartphone operating …
historically leads to remote exploitation due to insufficient protection. Smartphone operating …
Swashplateless helicopter rotor system with trailing-edge flaps for flight and vibration controls
THE use of trailing-edge flaps for primary flight control started as early as 1922 when
Pescara incorporated plain flaps for blade pitch control. 1 The trailing-edge flap provides …
Pescara incorporated plain flaps for blade pitch control. 1 The trailing-edge flap provides …
Continuation and bifurcation analysis in helicopter aeroelastic stability problems
D Rezgui, MH Lowenberg, M Jones… - Journal of Guidance …, 2014 - arc.aiaa.org
The dynamics of rotary wing systems are complex and typically feature highly nonlinear and
often unsteady aerodynamics, as well as aeroelastic influences. In ongoing efforts to reduce …
often unsteady aerodynamics, as well as aeroelastic influences. In ongoing efforts to reduce …
New combinational active control strategy for improving aerodynamic characteristics of airfoil and rotor
Y Ma, Q Zhao, G Zhao - Proceedings of the Institution of …, 2020 - journals.sagepub.com
In order to improve the aerodynamic characteristics of rotor, a new active flow control
strategy by combining a synthetic jet actuator and a variable droop leading-edge or a trailing …
strategy by combining a synthetic jet actuator and a variable droop leading-edge or a trailing …
Numerical and experimental analysis on the helicopter rotor dynamic load controlled by the actively trailing edge flap
ZX Zhou, XC Huang, JJ Tian, HX Hua… - Smart Materials and …, 2022 - iopscience.iop.org
Reducing the rotor dynamic load is an important issue to improve the performance and
reliability of a helicopter. The control mechanism of the actively controlled flap (ACF) on the …
reliability of a helicopter. The control mechanism of the actively controlled flap (ACF) on the …
Analysis of Rotorcraft Vibration Reduction Using a Center-of-Gravity Offset
Y Yoshizaki, S Sunada - TRANSACTIONS OF THE JAPAN SOCIETY …, 2023 - jstage.jst.go.jp
When a rotorcraft has N blades, N/rev vibration becomes large as the cruise speed
increases. This article numerically examines the effect of Center-of-Gravity (CG) offset on …
increases. This article numerically examines the effect of Center-of-Gravity (CG) offset on …
Aeroelastic analysis of rotor systems using trailing edge flaps
IG Lim, I Lee - Journal of Sound and vibration, 2009 - Elsevier
An aeroelastic analysis of rotor blades with trailing edge flaps was conducted using large
deflection-type beam theory for forward flight conditions with a focus on reducing vibration …
deflection-type beam theory for forward flight conditions with a focus on reducing vibration …
Research of Unsteady Aerodynamic Characteristics of Electrically Controlled Rotor Airfoils with Trailing-Edge Flaps
C Liang, H Li, T Su, CA Frank, K Li - Aerospace, 2023 - mdpi.com
An electrically controlled rotor (ECR), also known as a swashplateless rotor, eliminates the
swashplate system to implement the primary control via the trailing-edge flaps (TEFs), which …
swashplate system to implement the primary control via the trailing-edge flaps (TEFs), which …
Structural and mechanism design of an active trailing-edge flap blade
JH Lee, B Natarajan, WJ Eun, SR Viswamurthy… - Journal of Mechanical …, 2013 - Springer
A conventional rotor control system restricted at 1/rev frequency component is unable to vary
the hub vibratory loads and the aeroacoustic noise, which exist in high frequency …
the hub vibratory loads and the aeroacoustic noise, which exist in high frequency …
[图书][B] Comprehensive aeroelastic analysis of helicopter rotor with trailing-edge flap for primary control and vibration control
J Shen - 2004 - search.proquest.com
A comprehensive aeroelastic analytical model of helicopter rotors with trailing-edge flaps for
primary and vibration controls has been developed. The derivation of system equations is …
primary and vibration controls has been developed. The derivation of system equations is …