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Full-Text Articles in Engineering

Optimal Kanban Number: An Integrated Lean And Simulation Modelling Approach, Angassu Girma Mullisa, Walid Abdul-Kader Mar 2022

Optimal Kanban Number: An Integrated Lean And Simulation Modelling Approach, Angassu Girma Mullisa, Walid Abdul-Kader

Mechanical, Automotive & Materials Engineering Publications

Kanban is credited as a major means to controlling the inventory within a manufacturing system. Determining the optimum number of Kanban is of great interest for manufacturing industries. To fulfill this aim, an integrated modelling approach using discrete-event simulation technique and Kanban Lean tool is developed for a pull system ensuring an optimum Kanban number. This research has developed a base-case simulation model which was statistically validated using ANOVA. Initial Kanban number obtained from the mathematical model of Toyota motor company is used to obtain initial results. A Kanban integrated simulation model is developed that employed the idea of pull …


A New Loss Generation Body Force Model For Fan/Compressor Blade Rows: Application To Uniform And Non-Uniform Inflow In Rotor 67, Syamak Pazireh, J. J. Defoe Jan 2022

A New Loss Generation Body Force Model For Fan/Compressor Blade Rows: Application To Uniform And Non-Uniform Inflow In Rotor 67, Syamak Pazireh, J. J. Defoe

Mechanical, Automotive & Materials Engineering Publications

Despite advances in computational power, the cost of time-accurate flows in axial compressor and fan stages with spatially non-uniform inflow is still too high for design-stage use in industry. Body force modeling reduces the computation time to practical levels, mainly by reducing the problem to a steady one. These computations are important to determine efficiency penalties associated with non-uniform inflows. Previous studies of body force methods have, in most cases, relied on computations with the presence of the blades to calibrate loss models. In some recent studies, uncalibrated models have been used, but such models can drop off in accuracy …