Design of Hydraulic Exciter Using Nonstandard Backstepping with Integral Sliding Mode

Abdulkadhim Alkafaji, Mujtaba; N. Hamzah, Mohsin; M. Hassan, Jafar

doi:10.30772/qjes.v13i4.724

	Design of Hydraulic Exciter Using Nonstandard Backstepping with Integral Sliding Mode
Al-Qadisiyah Journal for Engineering Sciences
Volume 13, Issue 4, November 2020, Pages 314-320 PDF (749.91 K)
DOI: 10.30772/qjes.v13i4.724
Authors
Mujtaba Abdulkadhim Alkafaji¹; Mohsin N. Hamzah²; Jafar M. Hassan³
¹Al-Mustaqbal University College, Hillah, Iraq.
²University of Technology, Baghdad, Iraq.
³Al-Turath University College, Baghdad, Iraq.
Abstract
The hydraulic system plays an important role in the design of many mechanical devices due to its high power to weight ratio. In this work, a theoretical study of a hydraulic stimulator was performed to conduct suspension tests in a quarter car in the laboratory. Due to high nonlinearity in the hydraulic systems, a robust controller based upon integral sliding mode (ISMC) with nonstandard backstepping was used to perform the tracking process of the hydraulic actuator to the required road profiles. The controller design divided into two parts: the first part deals with the generation of the ideal control force which satisfied all the tracking requirements by using ISMC. The second part of the controller is the replacing of the ideal control force with the actual hydraulic force with all parameters by using nonstandard backstepping control. The effectiveness of the exciter control system was performed by using two road profiles i.e. Bump road profile and random road profile.
Keywords
Hydraulic simulator; Quarter car; Suspension system; Sliding Mode control

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