The Experts below are selected from a list of 19833 Experts worldwide ranked by ideXlab platform
Abdul Talib Din - One of the best experts on this subject based on the ideXlab platform.
-
promoting sustainability through water Hydraulic technology the effect of water Hydraulic in industrial scissor lift
Applied Mechanics and Materials, 2013Co-Authors: Ahmad Anas Yusof, Shafizal Mat, Abdul Talib DinAbstract:Sustainability concern has brought the idea of exploring the possibility of using water as the Hydraulic medium to transfer energy. The abundant resource of water, and its characteristic involving hygiene, safety and low maintenance cost provides a fascinating perspective of choosing water over Hydraulic Oil, due to concerns over Oil disposal, contamination, costly maintenance and flammability. However, in contrast, its low bOiling temperature, low viscosity, and simple molecular structure could pose danger to the operation of the Hydraulic system. In order to identify these limitations, an experimental study is carried out to explore the effect of water Hydraulic system. A test rig of scissor lift is fabricated and put into test by replacing the Hydraulic Oil with reverse osmosis water. It is found that the water Hydraulic scissor lift managed to lift up to 400 kg of load, with workable water temperature of 41.4oC.
-
Promoting Sustainability through Water Hydraulic Technology – The Effect of Water Hydraulic in Industrial Scissor Lift
Applied Mechanics and Materials, 2013Co-Authors: Ahmad Anas Yusof, Shafizal Mat, Abdul Talib DinAbstract:Sustainability concern has brought the idea of exploring the possibility of using water as the Hydraulic medium to transfer energy. The abundant resource of water, and its characteristic involving hygiene, safety and low maintenance cost provides a fascinating perspective of choosing water over Hydraulic Oil, due to concerns over Oil disposal, contamination, costly maintenance and flammability. However, in contrast, its low bOiling temperature, low viscosity, and simple molecular structure could pose danger to the operation of the Hydraulic system. In order to identify these limitations, an experimental study is carried out to explore the effect of water Hydraulic system. A test rig of scissor lift is fabricated and put into test by replacing the Hydraulic Oil with reverse osmosis water. It is found that the water Hydraulic scissor lift managed to lift up to 400 kg of load, with workable water temperature of 41.4oC.
Hung-ming Cheng - One of the best experts on this subject based on the ideXlab platform.
-
Fuzzy Controller Design for Positioning and Synchronization of ElectroHydraulic System
2007 2nd IEEE Conference on Industrial Electronics and Applications, 2007Co-Authors: Cheng-yi Chen, P.-s. Liao, Hung-ming ChengAbstract:In this paper, an integrated hybrid design, consisting of two independent sets of cylinder controllers (a feedforward controller and a fuzzy tracking controller) and one coordinate fuzzy controller, is proposed for a dual-cylinder electro-Hydraulic lifting system. The system, which is driven by a Hydraulic Oil supply, is used to achieve a synchronized positioning objective with unbalanced loadings, uncertainties, and disturbances. With the proposed controller structure, motion synchronization commands are generated by a coordinate fuzzy controller. The commands are then dispatched to the cylinder controllers. The two independent sets of cylinder controllers adaptively enforce the position-tracking commands to the individual single-rod actuators. The experimental results verify that the proposed hybrid controller structure can achieve the synchronous positioning objective of two independent, linear electro-Hydraulic actuators driven by a single Hydraulic Oil supply. Meanwhile, the maximum synchronization error of the experimental system can be maintained within plusmn4 mm.
Roger Yang - One of the best experts on this subject based on the ideXlab platform.
-
Improving Spool Valve Operating Effort Using CFD
SAE transactions, 2004Co-Authors: Roger YangAbstract:Hydraulic Oil flow and flow induced forces inside Hydraulic spool valves have been studied using a commercially available Computational Fluid Dynamics (CFD) software package with an aim of improving Hydraulic spool valve operating efforts. The main objective is to investigate flow induced forces on the spool with a range of different geometries or operating conditions and therefore to minimize or utilize their effect on spool effort. This CFD problem was treated as incompressible, turbulent, steady and adiabatic or isothermal. Integration of solved pressure field from a commercial CFD solution over related a valve component surface area was used to integrate the desirable flow induced forces. Additional viscous drag forces on the spool effect on total spool operating effort have also been investigated. The focus\in this article is mainly based on studies for open center flow type four-way spool valves in cases such that the Hydraulic Oil flow direction towards spool. Some other spool metering cases will also be presented. CFD results are compared to experimental results with overall good correlation.
-
Hydraulic Spool Valve Metering Notch Characterization Using CFD
Fluid Power Systems and Technology, 2003Co-Authors: Roger YangAbstract:This paper presents some results from an attempt to characterize Hydraulic Oil flow inside spool valves with different spool metering notches using Computational Fluid Dynamics (CFD). Hydraulic spool valve Oil flow under different conditions has been simulated using a commercially available CFD software program. The fluid flow is assumed steady-state, incompressible, isothermal and normally in a turbulent mode. A complete simulation procedure is presented from parametric geometry creation with a 3-D solid CAD program through final post-processing of CFD results. Main focus of this study is to explore the effects of geometric parameters of notches on important Hydraulic Oil flow characteristics, such as flow force and discharge coefficients. Formulas, intended for predicting such flow forces and discharge coefficients at different stage of spool notch openings, have been generalized and summarized under certain conditions based on a CFD result database from groups of same types of notches. Results comparison to experimental data is also presented.Copyright © 2003 by ASME
Ahmad Anas Yusof - One of the best experts on this subject based on the ideXlab platform.
-
promoting sustainability through water Hydraulic technology the effect of water Hydraulic in industrial scissor lift
Applied Mechanics and Materials, 2013Co-Authors: Ahmad Anas Yusof, Shafizal Mat, Abdul Talib DinAbstract:Sustainability concern has brought the idea of exploring the possibility of using water as the Hydraulic medium to transfer energy. The abundant resource of water, and its characteristic involving hygiene, safety and low maintenance cost provides a fascinating perspective of choosing water over Hydraulic Oil, due to concerns over Oil disposal, contamination, costly maintenance and flammability. However, in contrast, its low bOiling temperature, low viscosity, and simple molecular structure could pose danger to the operation of the Hydraulic system. In order to identify these limitations, an experimental study is carried out to explore the effect of water Hydraulic system. A test rig of scissor lift is fabricated and put into test by replacing the Hydraulic Oil with reverse osmosis water. It is found that the water Hydraulic scissor lift managed to lift up to 400 kg of load, with workable water temperature of 41.4oC.
-
Promoting Sustainability through Water Hydraulic Technology – The Effect of Water Hydraulic in Industrial Scissor Lift
Applied Mechanics and Materials, 2013Co-Authors: Ahmad Anas Yusof, Shafizal Mat, Abdul Talib DinAbstract:Sustainability concern has brought the idea of exploring the possibility of using water as the Hydraulic medium to transfer energy. The abundant resource of water, and its characteristic involving hygiene, safety and low maintenance cost provides a fascinating perspective of choosing water over Hydraulic Oil, due to concerns over Oil disposal, contamination, costly maintenance and flammability. However, in contrast, its low bOiling temperature, low viscosity, and simple molecular structure could pose danger to the operation of the Hydraulic system. In order to identify these limitations, an experimental study is carried out to explore the effect of water Hydraulic system. A test rig of scissor lift is fabricated and put into test by replacing the Hydraulic Oil with reverse osmosis water. It is found that the water Hydraulic scissor lift managed to lift up to 400 kg of load, with workable water temperature of 41.4oC.
A Mounir - One of the best experts on this subject based on the ideXlab platform.
-
effect of vulcanizing agent concentration on the swelling behavior of chloroprene rubber under compression strain
Polymer-plastics Technology and Engineering, 1993Co-Authors: S N Lawandy, S H Botros, A MounirAbstract:Abstract The effect of vulcanizing agent concentration on the equilibrium volume swelling and the elastic recovery of polychloroprene rubber immersed in Hydraulic Oil and subjected to uniaxial compression stress was investigated in this work.
-
effect of carbon black concentration on the swelling behavior of chloroprene rubber under compression strain
Polymer-plastics Technology and Engineering, 1993Co-Authors: S N Lawandy, S H Botros, A MounirAbstract:Abstract The effect of carbon black loading concentration on the equilibrium volume swelling and the elastic recovery of polychloroprene rubber immersed in Hydraulic Oil and subjected to uniaxial compression stress was investigated in this study.
