Browsing by Author "Endale, Yesuf"

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    Structural Design and Analysis of Passenger Rail Vehicle Car Body
    (Addis Ababa University, 2014-09) Endale, Yesuf; Demiss, Alemu (PhD)
    The purpose of the study is to design and analyze a rail vehicle car body structure that solves the issue of strength & comfort. Modern rail vehicles passenger Car bodies are designed as lightweight structures with the aim to minimize mass and thus operational energy demand. At the same time the vehicle car body shall be designed as stiff as possible to withstand exceptional loads. To achieve these, both rigid and flexible body vibration frequencies shall be filtered by appropriate design of suspension system. The materials used in the design and construction of passenger rail vehicle car body structure is structural steel( st 36) that has greater resilience to different production methods and available in local market compared to other materials used for the same application. The result shows the selected sections for the different components of the rail vehicle are capable of carrying the intended purpose. However, some sections are critically loaded beyond the allowable yield stress. These sections have to be reinforced to make them stiff enough that they bear the load. In addition, the first six natural frequencies are calculated using ANSYS design and modeling software. The frequency is compared to the sensitivity range of human being in vertical ride comfort. The design and analysis is applicable to Rail Way Corporation & local manufacturer’s that has plan to substitute import by local manufacturing of passenger rail vehicle car bodies