Results 101 to 110 of about 10,681 (234)

Redundant actuator development program [PDF]

Two concepts of redundant secondary actuator mechanization, applicable to future advanced flight control systems, were studied to quantitatively assess their design applicability to an AST.
Chenoweth, C. C., Fain, D. M., Svensson, C. I.   +2 more
core   +1 more source

Rotor systems research aircraft predesign study. Volume 4: Preliminary draft detail specification [PDF]

The RSRA requirements are presented in a detail specification format. Coverage of the requirements includes the following headings: (1) aircraft characteristics, (2) general features of design and construction, (3) aerodynamics, (4) structural design ...
Linden, A. W., Miller, A. N.
core   +1 more source

The technical roadmap of the development of variable pitch propeller governors for turboprop

Hangkong gongcheng jinzhan
The variable pitch governor controls the propeller to maintain a constant speed，so that the propeller can be energy-saving and efficient in a wider range of flight envelope.
CHEN Tingting, GUO Yong, PAN Zhongjian
doaj   +1 more source

Automatic controls and regulators: A compilation [PDF]

Devices, methods, and techniques for control and regulation of the mechanical/physical functions involved in implementing the space program are discussed.

core   +1 more source

A flight investigation of oscillating air forces: Equipment and technique [PDF]

The equipment and techniques are described which are to be used in a project aimed at measuring oscillating air forces and dynamic aeroelastic response of a swept wing airplane at high subsonic speeds.
Reed, W. H., III
core   +1 more source

Redundant actuator development study [PDF]

Current and past supersonic transport configurations are reviewed to assess redundancy requirements for future airplane control systems. Secondary actuators used in stability augmentation systems will probably be the most critical actuator application ...
Ryder, D. R.
core   +1 more source

Synergistic Integration of LQR Control and PSO Optimization for Advanced Active Suspension Systems Utilizing Electro-Hydraulic Actuators and Electro-Servo Valves

Emitter: International Journal of Engineering Technology
This paper investigates the design and optimization of Linear Quadratic Regulator (LQR) controllers for vehicle active suspension systems, incorporating an electro-hydraulic actuator with an electro-servo valve.
Trong Tu
doaj   +1 more source

Electronic/electric technology benefits study [PDF]

The benefits and payoffs of advanced electronic/electric technologies were investigated for three types of aircraft. The technologies, evaluated in each of the three airplanes, included advanced flight controls, advanced secondary power, advanced avionic
Cronin, M. J., Howison, W. W.
core   +1 more source

Recent Sikorsky R and D progress [PDF]

The recent activities and progress in four specific areas of Sikorsky's research and development program are summarized. Since the beginning of the S-76 design in 1974, Sikorsky has been aggressively developing the technology for using composite ...

core   +1 more source

电液位置控制系统的二次优化

Jixie chuandong, 2004
In this paper, the optimum control model was deduced so as to enhance the precision and to improve the dynamic characteristic of electro hydraulic position servo system. The optimal Q matrix was obtained through optimum.
王幼民, 姚宏志
doaj