Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"bogies"”.
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Multi-Domain Multi-Material Topology Optimization of a Roller Coaster Vehicle Bogie Subject to Multiaxial Fatigue Constraints
… posed by roller coaster wheel assemblies (bogies), specifically focusing on multiaxial fatigue topology optimization. Roller coaster bogies endure complex multiaxial loading conditions and require specialized fatigue constrained optimization due to their intricate loading, operating …
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Modeling Vehicle and Rail Vibrations Due to the Passage of High Speed Trains Using Coupled Traveling and Stationary Finite Element Models
… of freedom, and includes multiple train cars, bogies, and wheels. The track is modeled using Timoshenko beams for the rail so the shear and rotational effects on the rail due to the combined vertical and longitudinal forces exerted by the train onto the rail can be considered. Shape functions …
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Development of mathematical model for monorail suspension system under different track conditions
… New Monorail designs require more powerful bogies with new dimensions to accommodate more passengers, therefore new suspension system design is essential. In order to overcome new designs problems, better understanding of the suspension system is needed by mathematically modeling the system …
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Dynamic Braking Control for Accurate Train Braking Distance Estimation under Different Operating Conditions
… on a multibody formulation of railcars, trucks (bogies), and suspensions. The study includes the derivation of the mathematical model and the results of a numerical study in Matlab. A three-railcar model is used for performing a parametric study to evaluate how various elements will affect the …
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NUCARS Modeling of a Freight Locomotive with Steerable Trucks
The rail dynamics modeling package NUCARS has been used extensively to model freight cars. We have found that it can also be used effectively to model freight locomotives. This thesis discusses the development of a NUCARS model to represent a six-axle freight locomotive equipped with steerable …