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Title
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THE OPTIMIZATION OF LARGE-SCALE DOME TRUSSES ON THE BASIS OF THE PROBABILITY OF FAILURE
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Type
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JournalPaper
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Keywords
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enhanced vibrating particle system; reliability index; dome truss structures; metaheuristic algorithms; reliability based design optimization; large scale trusses
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Abstract
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Metaheuristic algorithms are preferred by the many researchers to reach the reliability based design optimization (RBDO) of truss structures. The cross-sectional area of the elements of a truss is considered as design variables for the size optimization under frequency constraints. The design of dome truss structures are optimized based on reliability by a popular metaheuristic optimization technique named Enhanced Vibrating Particle System (EVPS). Finite element analyses of structures and optimization process are coded in MATLAB. Large-scale dome truss of 600-bar, 1180-bar and 1410-bar are investigated in this paper and are compared with the previous studies. Also, a comparison is made between the reliability indexes of Deterministic Design Optimization (DDO) for large dome trusses and Reliability-Based Design Optimization (RBDO).
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Researchers
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Seyed Rohollah Hoseini Vaez (Fourth Researcher), Nasibeh Hatami (Third Researcher), Ali Kaveh (Second Researcher), Pedram Hosseini (First Researcher)
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