Title: Design and development of novel decoupled two degree of freedom electro-hydraulic servo system for positioning heavy load
Authors: Ashpana Shiralkar; Shailaja Kurode; Milind Chudgar
Addresses: Department of Electrical Engineering, College of Engineering, Pune, India; Department of Electrical Engineering, AISSMS, IOIT, Pune, India ' Department of Electrical Engineering, College of Engineering, Pune, India ' NiYo Engineers, Devgiri Industrial Estate, Kothrud, Pune, India
Abstract: This paper presents design and development of prototype of novel decoupled two degree of freedom (2 DoF) electro-hydraulic servo system (EHSS). Two linear actuators positioning load in y-z direction are used. Design of 2 DoF system includes design of mechanisms for producing linear and angular motion of load. A linear actuator is used to get linear motion along z axis. Another linear actuator is used to get angular motion about y axis. The prototype is analysed and examined. It is shown that the two degree of freedom are decoupled. The developed mechanism can position load anywhere to 600 mm along z axis and ±30° about y axis. It is shown that the design provides motion of load in 2-dimensional subspace, i.e., 600 mm along z axis in about 20 sec. and ±30° about y axis in about 10 sec.
Keywords: decoupled two degree of freedom; electro-hydraulic servo system; EHSS; linear motion; angular motion.
International Journal of Design Engineering, 2018 Vol.8 No.2, pp.149 - 169
Received: 30 Mar 2018
Accepted: 03 Nov 2018
Published online: 01 Jul 2019 *