Engineering and Technology Journal

Author = Walaa M. Hashim

Number of Articles: 2
Modeling and control of a high-quality electro-hydraulic actuator driven via an induction motor under intelligent indirect vector control
Modeling and control of a high-quality electro-hydraulic actuator driven via an induction motor under intelligent indirect vector control

Aws F. Hassan; Jamal A.-K. Mohammed; Walaa M. Hashim

Articles in Press, Corrected Proof, Available Online from 21 March 2024

https://doi.org/10.30684/etj.2024.144140.1622

Abstract
  Due to its excellent energy efficiency and broad speed range, the variable-speed electro-hydraulic drive is an appealing driving principle in many contemporary industrial applications. ...  Read More ...
Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism
Performance Improvement of a Conventional Hydraulic Elevator by Using Electro-Hydraulic Servo Mechanism

Jamal AK. Mohammed; Walaa M. Hashim; Bahaa S. Beram

Volume 38, 5A , May 2020, , Page 748-760

https://doi.org/10.30684/etj.v38i5A.367

Abstract
  An electro-hydraulic elevator is a new type of enhanced elevators that are used in low-rise buildings that do not exceed more than three floors. In this paper, an electro-hydraulic ...  Read More ...