Browsing Research Publications by Authors
An investigation into the effect of drag coefficient on overtaking of car.Al Homoud, S. S.; Oraifige, Ilias; Harmanto, Dani; University of Derby (Scientific.Net, 2014-01)The purpose of this report is the effect of the drag coefficient on the car when it is travelling on the road and at different positions while overtaking. The investigation uses SolidWorks Flow simulation software to conduct CFD [. A car and truck has been designed in actual dimensions using SolidWorks. After performing the validation of the software, the simulation is performed having the car in four different positions. The results will determine the drag coefficient and how it is affected in the different positions.
A multi degree of freedom actuationElvis Ashu, Mfortaw; Shafik, Mahmoud; Oraifige, Ilias; University of Derby (IOS Press, 2016-09)This paper presents the on going research to develop an actuation system with multi-degree of freedom, for robot and machine vision industrial applications. This is mainly aiming to overcome the current teething issues with digital visual transducer spot angle and enhance the relevant industrial applications performance and accuracy, at low cost. This paper is focused on the actuation system design and development. It covers the actuation system design optimisation, structure, and working principles. Finite element analysis has been used in the design optimisation process. This has been utilised to test the actuation system structure, investigate the dynamic behaviour and the deformation of the stator (active piezo-ceramic electrodes). The initial analysis and experimental results of the work is also presented in this paper and this is showed the potential of the current development.
Simulation aided life cycle sustainability assessment framework for manufacturing design and managementGbededo, Mijoh Ayodele; Liyanage, Kapila; Oraifige, Ilias; University of Derby (World Academy of Science, Engineering and Technology, 2016-07-21)Decision making for sustainable manufacturing design and management requires critical considerations due to the complexity and partly conflicting issues of economic, social and environmental factors. Although there are tools capable of assessing the combination of one or two of the sustainability factors, the frameworks have not adequately integrated all the three factors. Case study and review of existing simulation applications also shows the approach lacks integration of the sustainability factors. In this paper we discussed the development of a simulation based framework for support of a holistic assessment of sustainable manufacturing design and management. To achieve this, a strategic approach is introduced to investigate the strengths and weaknesses of the existing decision supporting tools. Investigation reveals that Discrete Event Simulation (DES) can serve as a rock base for other Life Cycle Analysis frameworks. Simio-DES application optimizes systems for both economic and competitive advantage, Granta CES EduPack and SimaPro collate data for Material Flow Analysis and environmental Life Cycle Assessment, while social and stakeholders’ analysis is supported by Analytical Hierarchy Process, a Multi-Criteria Decision Analysis method. Such a common and integrated framework creates a platform for companies to build a computer simulation model of a real system and assess the impact of alternative solutions before implementing a chosen solution.