Results 131 to 140 of about 42,845 (360)
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT A significant portion of existing reinforced concrete (RC) structures in seismically active regions was constructed prior to the adoption of modern seismic design standards, leaving them highly susceptible to earthquake‐induced damage. The vulnerabilities of these structures, often exacerbated by material degradation, have been starkly ...
İsmail Ozan Demirel +3 more
wiley +1 more source
Foreign technology summary of flight crucial flight control systems [PDF]
, 1984 A survey of foreign technology in flight crucial flight controls is being conducted to provide a data base for planning future research and technology programs.
Rediess, H. A.
core +1 more source
Position Control of Electro‐Hydraulic Actuator System With Disturbances Compensation
Energy Science &Engineering, EarlyView.A novel output feedback controller based on global fast terminal sliding mode with disturbances rejection to achieve accurate position tracking control for electro‐hydraulic cylinder system, which shows the great control potential of the designed output feedback controller during the start‐up and operation of the electro‐hydraulic actuator system ...
Yunfei Wang, Haigang Ding, Jiaxiang Man
wiley +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
Fire and Materials, EarlyView.ABSTRACT Heat induced delamination (HID) is a phenomenon in engineered wood products which may result in the detachment of the bonded timber lamellae before charring propagates to the bond line interphase. This study aims to correlate the thermal degradation of two 1‐c‐polyurethane adhesives at the microscale to the thermo‐hydro‐mechanical behaviour of
A. Čolić +4 more
wiley +1 more source
Independent Orbiter Assessment (IOA): Analysis of the body flap subsystem [PDF]
The results of the Independent Orbiter Assessment (IOA) of the Failure Modes and Effects Analysis (FMEA) and Critical Items List (CIL) are presented. The IOA approach features a top-down analysis of the hardware to determine failure modes, criticality ...
Riccio, J. R., Wilson, R. E.
core +1 more source
Macromolecular Materials and Engineering, EarlyView.4D‐printed auxetic cellular structures made from PETG demonstrate almost complete recovery of shape and mechanical properties after repeated loading. Two strategies successfully addressed the low shape‐fixity issue, the primary limitation of cold programming.
Mehdi Shadman +3 more
wiley +1 more source
Predefined‐Time Dynamic Surface Control of Tank Horizontal Stabilization System With Disturbance
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Modern new tanks are difficult to achieve high precision control of the horizontal stabilization system due to electromechanical coupling and road surface disturbance during high‐speed combat. A predefined‐time dynamic surface controller (DSCPT) is proposed for the fast stabilization and strong disturbance problems of the tank horizontal ...
Zhicheng Fan +5 more
wiley +1 more source
SYNCHRONOUS HYDROMECHANICAL DRIVE OF MOBILE ACTUATOR AND ITS MATHEMATICAL MODEL
Вестник Донского государственного технического университета, 2018 A synchronous hydromechanical system of the mobile actuator is considered as an example of the brush drive system of the airport sweeper. It is proposed to equip the synchronous hydraulic machine drive with a throttle flow divider of not spool-type ...
Alan Ruslanovich Temirkanov +1 more
doaj
A Conceptual Comparison of Hydraulic and Electric Actuation Systems for a Generic Fighter Aircraft
AerospaceThis paper presents a methodology for evaluating different flight control actuation system architectures in the early conceptual design phase. In particular, this paper shows how hydraulic and electric actuators can be modeled even if very little is ...
Alessandro Dell’Amico +1 more
doaj +1 more source