نتایج جستجو برای: size optimization truss structures structural optimization meta heuristic algorithm

تعداد نتایج: 2313577  

Journal: :International Journal of Systems Assurance Engineering and Management 2021

Optimization methodologies are being utilized in various structural designing practices to solve size, shape and topology optimization problems. A heuristic Particle swarm (HPSO) algorithm was anticipated this article order address the size problem of truss with stress displacement constraints. This contributes improvisation structure design rationality while reducing engineering cost by propos...

S. Gholizadeh , V. Aligholizadeh,

The main aim of the present study is to achieve optimum design of reinforced concrete (RC) plane moment frames using bat algorithm (BA) which is a newly developed meta-heuristic optimization algorithm based on the echolocation behaviour of bats. The objective function is the total cost of the frame and the design constraints are checked during the optimization process based on ACI 318-08 code. ...

2011
Kang Seok Lee Sang Whan Han Zong Woo Geem KANG SEOK LEE SANG WHAN HAN ZONG WOO GEEM

Many methods have been developed for structural size and configuration optimization in which cross-sectional areas are usually assumed to be continuous. In most practical structural engineering design problems, however, the design variables are discrete. This paper proposes two efficient structural optimization methods based on the harmony search (HS) heuristic algorithm that treat both discret...

A. A. Atai, A. Ahrari,

The prevalent strategy in the topology optimization phase is to select a subset of members existing in an excessively connected truss, called Ground Structure, such that the overall weight or cost is minimized. Although finding a good topology significantly reduces the overall cost, excessive growth of the size of topology space combined with existence of varied types of design variables challe...

2018
Achyuthan Jootoo David Lattanzi

Structural system design is the process of giving form to a set of interconnected components 1 subjected to loads and design constraints while navigating a complex design space. While safe 2 designs are relatively easy to develop, optimal designs are not. Modern computational optimization 3 approaches employ population based metaheuristic algorithms to overcome challenges with the 4 system desi...

A new hybrid algorithm of Particle Swarm Optimization and Genetic Algorithm (PSOGA) is presented to get the optimum design of truss structures with discrete design variables. The objective function chosen in this paper is the total weight of the truss structure, which depends on upper and lower bounds in the form of stress and displacement limits. The Particle Swarm Optimization basically model...

A. Razzazi, F. Biabani, S. Hamzehei-Javaran, S. Shojaee,

Presently, the introduction of intelligent models to optimize structural problems has become an important issue in civil engineering and almost all other fields of engineering. Optimization models in artificial intelligence have enabled us to provide powerful and practical solutions to structural optimization problems. In this study, a novel method for optimizing structures as well as solving s...

Journal: :journal of optimization in industrial engineering 2011
mohamad mirzazadeh gholam hasan shirdel behrooz masoumi

assigning facilities to locations is one of the important problems, which significantly is influence in transportation cost reduction. in this study, we solve quadratic assignment problem (qap), using a meta-heuristic algorithm with deterministic tasks and equality in facilities and location number. it should be noted that any facility must be assign to only one location. in this paper, first o...

Journal: :journal of operation and automation in power engineering 2015
r. sedaghati f. namdari

one of the significant strategies of the power systems is economic dispatch (ed) problem, which is defined as the optimal generation of power units to produce energy at the lowest cost by fulfilling the demand within several limits. the undeniable impacts of ramp rate limits, valve loading, prohibited operating zone, spinning reserve and multi-fuel option on the economic dispatch of practical p...

M. Ghasemiazar, S. Gholizadeh,

This study is devoted to seismic collapse safety analysis of performance based optimally seismic designed steel chevron braced frame structures. An efficient meta-heuristic algorithm namely, center of mass optimization is utilized to achieve the seismic optimization process. The seismic collapse performance of the optimally designed steel chevron braced frames is assessed by performing incremen...

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