Results 81 to 90 of about 534 (128)

Modeling and Mode Switching Analysis of Electro‑hydrostatic Actuators for Primary Flight Control System

Transactions of Nanjing University of Aeronautics and Astronautics
With the advancement of more electric aircraft （MEA） technology， the application of electro-hydrostatic actuators （EHAs） in aircraft actuation systems has become increasingly prevalent.
GUO Tuanhui, FU Yongling, CHEN Juan
doaj   +1 more source

Recent Advances in Bipedal Walking Robots: Review of Gait, Drive, Sensors and Control Systems. [PDF]

Sensors (Basel), 2022
Mikolajczyk T, Mikołajewska E, Al-Shuka HFN, Malinowski T, Kłodowski A, Pimenov DY, Paczkowski T, Hu F, Giasin K, Mikołajewski D, Macko M.   +10 more
europepmc   +1 more source

Highly Compact Swing Assistive Knee Prosthesis Integrating Active and Passive Hydraulic Systems [PDF]

This work proposes a novel partially powered knee prosthesis to give full support to swing related activities. It represents a technological step forward when compared to microprocessor-controlled knees.
Andrea Tonoli, Federico Tessari, Marco Puliti, Matteo Laffranchi, Nicola Amati, Renato Galluzzi   +5 more
core   +1 more source

A Machine Learning Model of Electro-Hydrostatic Actuators With the Low-Data Limit and Its Application to Fault Detection

IEEE Access
This paper presents a novel approach for modeling the dynamics of electro-hydrostatic actuators (EHAs) using the sparse identification of nonlinear dynamics (SINDy) algorithm. SINDy is a machine learning algorithm that identifies governing equations from
Soleiman Hosseinpour, Witold Kinsner, Nariman Sepehri   +2 more
doaj   +1 more source

A Systematic Literature Review of Predictive Maintenance for Defence Fixed-Wing Aircraft Sustainment and Operations. [PDF]

Sensors (Basel), 2022
Scott MJ, Verhagen WJC, Bieber MT, Marzocca P.   +3 more
europepmc   +1 more source

Enhanced Operation Mode Design and Motion Control of a Dual-Redundancy Electro-Hydrostatic Actuator

Actuators
In dual-redundancy electro-hydrostatic actuators (EHAs), the dual pumps are mainly designed for safety, where the cylinder is controlled mainly by one pump while the other one is standby for redundancy. However, such a strategy is basically like a single-
Huatao Jin, Shuanglu Li, Yaobao Yin, Rui Guo, Cheng Fang, Jiangkun Zou   +5 more
doaj   +1 more source

A DYNAMIC SECOND-ORDER ESTIMATION STRATEGY FOR FAULTY SYSTEMS, 1-14. [PDF]

This paper introduces a novel second-order state estimation method that is applied to linear systems dealing with modelling uncertainties. This method produces state estimates by decreasing the innovation sequence (measurement error) and its time ...
Afshari HH, Gadsden SA, Habibi SR, Lee AS   +3 more
core   +1 more source

Development of friction free controller for electro-hydrostatic actuator using feedback modulator and disturbance observer [PDF]

, 2017

core   +1 more source

Electro-Hydrostatic Actuator Controller Design Using Quantitative Feedback Theory [PDF]

, 1994
The Electro-Hydrostatic Actuator (EllA) technology offers a higher degree of combat survivability and easier maintainability of the aircraft flight control system, because all the components necessary to operate the actuator are collocated with the ...
Kang, Ki Ho
core   +1 more source

AN ADAPTIVE FORMULATION OF THE SMOOTH VARIABLE STRUCTURE FILTER BASED ON STATIC MULTIPLE MODELS, 1-10. [PDF]

The Kalman filter (KF) is the most well-known estimation strategy that yields the optimal solution to the linear quadratic estimation problem. The system in such applications shall be well modelled assuming the presence of Gaussian noise. While the KF is
AlShabi M, Gadsden SA, Lee AS, Wilkerson SA   +3 more
core   +1 more source