Fuzzy optimization of space frame |
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| Affiliation: | 1. Civil and Environment Engineering School, University of Science and Technology Beijing, Beijing 100083, China;2. Beijing University of Aeronautics and Astronautics, Beijing 100083, China;3. China Academy of Building Research, Beijing 100013, China |
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| Abstract: | Fuzzy concepts are introduced into structural optimization to solve fuzzy optimization problems with a crisp objective function and fuzzy constraints, also a non-membership function is used to convert fuzzy constrains into crisp constrains. Two models are discussed where the objective function considered is the volume of space frame and the fuzzy constrains are design limits by the axial strength, slenderness, deflection, thickness and diameter of space frame member. |
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| Keywords: | space frame fuzzy optimization geometric non-linearity |
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