Results 41 to 50 of about 2,727 (142)

On Control Synthesis of Hydraulic Servomechanisms in Flight Controls Applications

Actuators
This paper presents some of the most significant findings in the design of a hydraulic servomechanism for flight controls, which were primarily achieved by the first author during his activity in an aviation institute. These results are grouped into four
Ioan Ursu, Daniela Enciu, Adrian Toader
doaj   +1 more source

Robust control of double-rod and single-rod electrohydrostatic actuators: design and implementation

, 2020
Electrohydrostatic actuators (EHAs) are known for their high power efficiency, reliability, compactness, and easy maintainability. However, uncertainties can cause their performance to degrade or even lead to accidents, especially faults such as actuator internal leakage.
openaire   +1 more source

Fault detection and fault-tolerant control of single-rod electrohydrostatic actuated system

, 2021
Single-rod electrohydrostatic actuators present an efficient alternative to valve-controlled systems. However, such systems have significant nonlinearities and as is the case with hydraulic circuits, the possibility of faults exists in the system. Since these faults cannot be seen directly and have significant effects on the overall behaviour of the ...
openaire   +1 more source

Velocity control of single-rod hydrostatic actuators: component sizing and controller design

, 2018
Pump-controlled hydraulic actuation of single-rod actuators is more challenging than double-rod actuators due to difference in areas on two sides of single-rod actuators and a need to compensate for differential flow. The performance of a single-rod pump-controlled hydraulic circuit can be significantly affected by variations in load, velocity and ...
openaire   +1 more source

An Energy-Efficient Gas-Oil Hybrid Servo Actuator with Single-Chamber Pressure Control for Biomimetic Quadruped Knee Joints. [PDF]

Biomimetics (Basel)
Yao M, Hua Z, Qian H.
europepmc   +1 more source

Pneumatically controlled lattices with tunable mechanical behavior. [PDF]

Commun Eng
Zhu X, Hua Y, Jin D, Raney JR.
europepmc   +1 more source

Application-oriented classification and performance analysis of precision linear feed mechanisms for machine tools. [PDF]

Sci Prog
Zhou J, Yu H, He M, Zhang Y, Luan X, Liu Y.   +5 more
europepmc   +1 more source

Gemini: the first underground testbed for seismic isolation and inter-platform control in next-generation gravitational-wave detectors. [PDF]

Eur Phys J Plus
Andric T, Harms J, Caravella I, Angiolilli M, Cortis D, D'Ambrosio N, De Deo M, D'Incecco M, Di Ludovico A, Gerberding O, Lalli A, Lantz B, Leonzi L, Macolino C, Mittleman R, Mow-Lowry C, Orlandi D, Pirro S, Ricci M, Rollins J, Warner J.   +20 more
europepmc   +1 more source

Energy Consumption and Dynamic Behaviour Analyses in Single-Rod Hydraulic Actuation of Mobile Machines

, 2014
This thesis investigates the performance of single-rod hydraulic actuation of mobile machines. The performance is evaluated by studying the energy consumption and the dynamic performance of such actuation systems. Presently, valve-controlled systems control actuators of mobile machines.
openaire   +1 more source

Enhancing Torque Output for a Magnetic Actuation System for Robotic Spinal Distraction. [PDF]

Sensors (Basel)
Li Y, Li Z, Lu D, Peng T, Chen Y, Fu G, Nie Z, Wei F.   +7 more
europepmc   +1 more source