Aerospace Systems
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An introduction to electric thruster modeling for stratospheric airship
Aerospace Systems - - Trang 1-11 - 2024
The stratospheric airship uses the electric thrusters composed of motors and large diameter propellers to generate the forward thrust and heading manipulation torque. As the actuators of flight control, electric thrusters have an important impact on the station-keeping and flight-control performance. Due to the high-altitude environment and low-speed flight of big volumetric stratospheric airships......
Research on refraction error correction of digital image correlation technology in strain measurement of airship skin
Aerospace Systems - Tập 3 Số 2 - Trang 107-117 - 2020
Ground effect analysis for unmanned lifting rotor through robust finite state inflow model based on adjoint theorem
Aerospace Systems - Tập 1 - Trang 31-37 - 2018
When helicopter is climbing from the ground or flying close to a solid surface, the flow around the lifting rotor can be strongly affected such that it will become time varying. To control the helicopter when the ground effect presents, a fast and accurate simulation technique is required. Traditional finite state inflow model with ground effect still need numerical integration since it cannot dir......
Determination of minimum thickness of composite panels taking into account limits on stability and fatigue under postbuckling behavior
Aerospace Systems - Tập 6 - Trang 531-537 - 2023
When designing the compressed thin composite skin of a multispar flap box of a small aircraft, its buckling due to compressive forces at loads below the operational level is admissible. This work considers smooth orthotropic rectangular panels loaded with longitudinal compressive strength. To determine the optimal parameters of the panels, a method based on a postbuckling state involving an analyt......
Airfoil smoothing using unconditional optimization
Aerospace Systems - - Trang 1-11 - 2023
The paper considers the smoothing of tabulated curves describing airfoils. Smoothing is required to eliminate airfoil contour distortions that occur during the design of the aircraft wing surface. The problem of ensuring a smooth change in the curvature of the smoothed contour is presented as a problem of minimizing the quadratic function of many variables. To minimize the objective quadratic func......
Finite state machine and ultrasonic ranging-based approach for automatic grasping by aerial manipulator
Aerospace Systems - - Trang 1-10 - 2024
This paper introduces an experiment-based recognition and grasping control method for aerial manipulators. The method consists of two parts: an automatic grasping process using a finite state machine, and an ultrasonic ranging principle. The D–H parameter method is utilized for analyzing the manipulator’s degree of freedoms, equipped with bus servos controlled via serial communication. The propose......
A review on kinematic analysis and dynamic stable control of space flexible manipulators
Aerospace Systems - Tập 2 Số 1 - Trang 1-14 - 2019
Hybrid convolutional neural network (CNN) for Kennedy Space Center hyperspectral image
Aerospace Systems - Tập 6 Số 1 - Trang 71-78 - 2023
A novel on–off linear quadratic regulator control approach for satellite rendezvous
Aerospace Systems - Tập 6 Số 4 - Trang 613-620 - 2023
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