Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System
Recent years have seen a significant increase in structural engineers' interest in the assessment of reliability and structural safety. The Reliability-Based Design Optimization (RBDO) method has been utilized to create the most efficient and safe design of structures. Although there have been...
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Semnan University
2023-08-01
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| Series: | Journal of Rehabilitation in Civil Engineering |
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| Online Access: | https://civiljournal.semnan.ac.ir/article_6938_73529e3f802a18142449199925113cc4.pdf |
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| author | Pedram Hosseini Nasibeh Hatami Seyed Rohollah Hoseini Vaez |
| author_facet | Pedram Hosseini Nasibeh Hatami Seyed Rohollah Hoseini Vaez |
| author_sort | Pedram Hosseini |
| collection | DOAJ |
| description | Recent years have seen a significant increase in structural engineers' interest in the assessment of reliability and structural safety. The Reliability-Based Design Optimization (RBDO) method has been utilized to create the most efficient and safe design of structures. Although there have been several theoretical advances in reliability analysis, computational barriers still occur in realistic problems. The purpose of this paper is to provide a process for the optimization of dome truss structures based on reliability. For this purpose, a flowchart including the process of Deterministic Design Optimization (DDO) and RBDO was presented. An evaluation of the reliability of the structure is made by using random variables to represent uncertain parameters. Throughout this study, random variables such as the module of elasticity, material density, and the cross-sectional area of the elements are considered. The deterministic constraints for DDO are the vertical displacement of free nodes and the demand-capacity ratio of all members. Also, reliability index 3 is set as the minimum target reliability index. Meta-heuristic algorithms can be used to achieve optimal design and appropriate safety since mathematical calculations are time-consuming. As part of this study, the Enhanced Vibration Particle System (EVPS) and Vibration Particle System (VPS) have been applied to DDO (incorporating reliability assessment) and RBDO of three dome trusses. The results were obtained using the processes of RBDO and DDO without any deviation in the acceptable space. The solution of RBDO will increase the weight and safety of structures. |
| format | Article |
| id | doaj-art-7e54520b7e754468aa088c1f06d1a2d4 |
| institution | Kabale University |
| issn | 2345-4415 2345-4423 |
| language | English |
| publishDate | 2023-08-01 |
| publisher | Semnan University |
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| series | Journal of Rehabilitation in Civil Engineering |
| spelling | doaj-art-7e54520b7e754468aa088c1f06d1a2d42025-01-20T11:34:37ZengSemnan UniversityJournal of Rehabilitation in Civil Engineering2345-44152345-44232023-08-01113476710.22075/jrce.2022.26341.16156938Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle SystemPedram Hosseini0Nasibeh Hatami1Seyed Rohollah Hoseini Vaez2Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, IranDepartment of Civil Engineering, Faculty of Engineering, University of Qom, Qom, IranDepartment of Civil Engineering, Faculty of Engineering, University of Qom, Qom, IranRecent years have seen a significant increase in structural engineers' interest in the assessment of reliability and structural safety. The Reliability-Based Design Optimization (RBDO) method has been utilized to create the most efficient and safe design of structures. Although there have been several theoretical advances in reliability analysis, computational barriers still occur in realistic problems. The purpose of this paper is to provide a process for the optimization of dome truss structures based on reliability. For this purpose, a flowchart including the process of Deterministic Design Optimization (DDO) and RBDO was presented. An evaluation of the reliability of the structure is made by using random variables to represent uncertain parameters. Throughout this study, random variables such as the module of elasticity, material density, and the cross-sectional area of the elements are considered. The deterministic constraints for DDO are the vertical displacement of free nodes and the demand-capacity ratio of all members. Also, reliability index 3 is set as the minimum target reliability index. Meta-heuristic algorithms can be used to achieve optimal design and appropriate safety since mathematical calculations are time-consuming. As part of this study, the Enhanced Vibration Particle System (EVPS) and Vibration Particle System (VPS) have been applied to DDO (incorporating reliability assessment) and RBDO of three dome trusses. The results were obtained using the processes of RBDO and DDO without any deviation in the acceptable space. The solution of RBDO will increase the weight and safety of structures.https://civiljournal.semnan.ac.ir/article_6938_73529e3f802a18142449199925113cc4.pdfoptimizationdome truss structuresreliability indexevps algorithmsmonte carlo simulation method |
| spellingShingle | Pedram Hosseini Nasibeh Hatami Seyed Rohollah Hoseini Vaez Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System Journal of Rehabilitation in Civil Engineering optimization dome truss structures reliability index evps algorithms monte carlo simulation method |
| title | Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System |
| title_full | Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System |
| title_fullStr | Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System |
| title_full_unstemmed | Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System |
| title_short | Reliability-Based Optimum Design of Dome Truss Structures through Enhanced Vibration Particle System |
| title_sort | reliability based optimum design of dome truss structures through enhanced vibration particle system |
| topic | optimization dome truss structures reliability index evps algorithms monte carlo simulation method |
| url | https://civiljournal.semnan.ac.ir/article_6938_73529e3f802a18142449199925113cc4.pdf |
| work_keys_str_mv | AT pedramhosseini reliabilitybasedoptimumdesignofdometrussstructuresthroughenhancedvibrationparticlesystem AT nasibehhatami reliabilitybasedoptimumdesignofdometrussstructuresthroughenhancedvibrationparticlesystem AT seyedrohollahhoseinivaez reliabilitybasedoptimumdesignofdometrussstructuresthroughenhancedvibrationparticlesystem |