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Topological Optimization Design of Automobile Frame

Author: LvPin
Tutor: AnXiaoWei
School: Shenyang University of Technology
Course: Mechanical Design and Theory
Keywords: Frame FEM Topology Optimization Size Optimization HyperWorks
CLC: U463.32
Type: Master's thesis
Year: 2008
Downloads: 698
Quote: 13
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Abstract


This paper first discusses the research status at home and abroad as well as optimization techniques applied , analyzed lightweight frame construction technology trends presented finite element techniques and modern optimization methods to optimize the structure of the frame design and finite element analysis to up to meet the static and dynamic characteristics index cases and to reduce the weight of purposes. To two tonnes of cargo light truck frame single-row seat as the research object , the establishment of the design space frame to determine the frame displacement boundary conditions and load cases to determine when fully loaded car in motion the process encountered a variety of conditions . As the objective function to frame lightweight , stiffness and natural frequency as constraints , application HyperWorks software frame for 2D and 3D design space topology optimization , topology results on this basis will be abstract , extract frame geometry model , and the model for finite element analysis. To meet the various performance indicators premise , the use of plate element to vertical and horizontal beam frame design variable thickness size optimization again to obtain the frame geometry . Finally, the optimized geometry for round, the frame model for finite element analysis , the final model of the ideal frame size . In this paper, topology optimization method of this conceptual design to meet various working conditions indicators frame material distribution and abstract model for size optimization , making the frame in the design domain globally optimal solution . Not only for the general frame of reference for the design and the basis for the optimal design of the frame at the same time providing new ideas and concrete, feasible route for similar studies to provide a good reference.

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Travel System > Frame
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