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Full-Text Articles in Mechanical Engineering
Study Of Periodic Gust Loads On Airfoils, Tatsuya Nakajima
Study Of Periodic Gust Loads On Airfoils, Tatsuya Nakajima
Masters Theses
The wings on aircraft can experience unsteady loads due to atmospheric disturbances; e.g., wind, the wakes of other aircraft, structural vibrations, or some combination of these sources. In some cases flow unsteadiness can be beneficial by augmenting the lift and reducing the drag; under different circumstances temporal variations in the flow can induce stall or cause structural failure.
In this study, the response of isolated (and tandem) NACA 0012 airfoil(s) to time-periodic unsteadiness have been investigated. The sources of unsteadiness include a time-varying free stream flow angle, a time varying free stream velocity magnitude, and an oscillating airfoil.
The predicted …
A Study Of Kanban Based Production System In Cellular Manufacturing Environment, Sanjay Bhargava
A Study Of Kanban Based Production System In Cellular Manufacturing Environment, Sanjay Bhargava
Masters Theses
The study of effects of production data variabilities on Kanban based cellular manufacturing system is vital before its design and implementation because it would give better understanding of their uncertain behavior.
In this research, a detailed analysis of a Kanban system, with subcell scenario, under dynamic operating conditions is performed. The Control variables considered were number of Kanbans, processing time variability, demand variability and machine breakdown. The performance parameters considered were profit, production lead time, machine utilization and material processing lead time.
Approximately 200 simulation runs were made with 3 replications each by varying one control variable at a time. …