Global ETD Search

1	Topology Optimization of Vehicle Body Structure for Improved Ride & Handling Lövgren, Sebastian, Norberg, Emil January 2011 (has links) Ride and handling are important areas for safety and improved vehicle control during driving. To meet the demands on ride and handling a number of measures can be taken. This master thesis work has focused on the early design phase. At the early phases of design, the level of details is low and the design freedom is big. By introducing a tool to support the early vehicle body design, the potential of finding more efficient structures increases. In this study, topology optimization of a vehicle front structure has been performed using OptiStruct by Altair Engineering. The objective has been to find the optimal topology of beams and rods to achieve high stiffness of the front structure for improved ride and handling. Based on topology optimization a proposal for a beam layout in the front structure area has been identified. A vital part of the project has been to describe how to use topology optimization as a tool in the design process. During the project different approaches has been studied to come from a large design space to a low weight architecture based on a beam-like structure. The different approaches will be described and our experience and recommendations will be presented. Also the general result of a topology-optimized architecture for vehicle body stiffness will be presented. topology optimization size optimization compliance design space volfrac Volvo cars body structure body stiffness struts beams bolted components Altair hyperworks hypermesh optistruct stepwise optimization early design phase benchmarking
2	Estimation of Static Stiffnesses from Free Boundary Dynamic (FRF) Measurements Pasha, Hasan G. January 2014 (has links) No description available. Mechanics Static Torsional Stiffness Static Bending Stiffness Auto Body Stiffness Evaluation Statics from Dynamics

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