The Study of Multidisciplinary Topology Optimization Design Methods on the Spot Weld Placement, Structural Vibration and Thermal Stress Problems
| Autor: | Chih-Hsing Liu, 劉至行 |
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| Rok vydání: | 2001 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 89 This thesis successfully extends the concept of structural topology optimization design to diversified fields. The structural topology optimization design is to find the best use of material for a structure and it can not only save materials but also be lightweight or be the reinforced ribs of the structure. This thesis applies the structural static stiffness and dynamic vibrational natural frequency topology optimization function of the finite element software “ANSYS” and goes a step further to use ANSYS coupled field analysis technique and writes optimal programs to achieve the goals of spot weld placement, maximizing structural fundamental natural frequency, minimizing structural maximum thermal stress and concerns the multidisciplinary structural topology optimization design of structural static stiffness, fundamental natural frequency and thermal stress problems. In the study of the spot weld placement topology optimization design, this thesis uses ANSYS structural static stiffness topology optimization method and presents the simulation and assumption of the spot weld joint to find the best locations of connections. In the study of the structural vibrational natural frequency topology optimization design, the ANSYS natural frequency topology optimization method and the single evolution method was used to maximize the fundamental natural frequency of a structure. In the study of the thermal stress stiffness topology optimization design, this thesis presents the thermal stress stiffness topology optimization method and the ANSYS coupled field thermal stress stiffness topology optimization method to minimize the maximum thermal stress of a structure and also discusses the multiple loading problems of the heat and force load. In the study of the multidisciplinary structural topology optimization design, this research presents the multidisciplinary structural topology optimization method to design the multidisciplinary topology optimization for minimizing compliance, maximizing fundamental natural frequency and minimizing maximum thermal stress of a structure. As a whole, this research presents the different topology optimization design methods according to the different design objects and all achieves ideal results successfully. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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