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truss structures

A Novel Hybrid Simplex-Genetic Algorithm For The Optimum Design Of Truss Structures

A Novel Hybrid Simplex-Genetic Algorithm For The Optimum Design Of Truss Structures

... We present a new hybrid algorithm for the weight minimization of large truss structures. The algorithm combines the fundamental elements of standard Genetic Algorithms with those proposed by Nelder and Mead ...

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Nonlinear Analysis of Truss Structures Using Dynamic Relaxation (RESEARCH NOTE)

Nonlinear Analysis of Truss Structures Using Dynamic Relaxation (RESEARCH NOTE)

... Abstract This paper presents a new approach for large-deflection analysis of truss structures employing the Dynamic Relaxation method (DR). The typical formulation for DR has been established utilizing the ...

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Damage Identification in Large-scale Double-layer Truss Structures Via a Two-stage Approach

Damage Identification in Large-scale Double-layer Truss Structures Via a Two-stage Approach

... Fallah et al. [18] proposed a two-stage approach to damage identification of large-scale trusses. But they could not find damages directly in noisy condition, so the damages were detected statistically. This article has ...

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Multivariate Rational Response Surface Approximation of Nodal Displacements of Truss Structures

Multivariate Rational Response Surface Approximation of Nodal Displacements of Truss Structures

... of truss node displacement, its research method and results can be easily extended to other types of ...for truss structures can be expressed as multivariate rational ...

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Measurement of deforming mode of lattice truss structures under impact loading

Measurement of deforming mode of lattice truss structures under impact loading

... Lattice truss structures, which are used as a core material in sandwich panels, were widely investigated experimen- tally and ...tetrahedral truss cores structures made of Aluminum ...the ...

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Calculation of Buckling Load and Eigen Frequencies for Planar Truss Structures with Multi-Symmetry

Calculation of Buckling Load and Eigen Frequencies for Planar Truss Structures with Multi-Symmetry

... 2.1. Symmetry of Form A (modified Form II symmetry) For trusses with axes of symmetry not passing through nodes with active DOFs, we have the Form A symmetry, as shown in Fig. 1(a). The main reason for not being able to ...

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Hybrid Improved Dolphin Echolocation and Ant Colony Optimization for Optimal Discrete Sizing of Truss Structures

Hybrid Improved Dolphin Echolocation and Ant Colony Optimization for Optimal Discrete Sizing of Truss Structures

... [2] Leandro Fleck Fadel Miguel, L. F. F., Rafael Holdorf Lopez, R. H., Miguel, L. F. F. (2013). “Multimodal size, shape, and topology optimisation of truss structures using the Firefly algorithm.” Advances ...

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Determining Optimal Geometries of Plane Stress Truss Structures using Numerically Mapped Principal Stress Trajectories.

Determining Optimal Geometries of Plane Stress Truss Structures using Numerically Mapped Principal Stress Trajectories.

... optimal truss designs, a method of determining principal stress trajectory paths and their corresponding finite element truss mesh was defined, and a pair of optimization algorithms and their constraints ...

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... simple truss structures, this paper demonstrates that the extreme hybrid reliability index can be attained when the interval variables reach their upper or lower ...

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Tensegrity Truss Model using Fem Applications

Tensegrity Truss Model using Fem Applications

... tensegrity structures were formulated on truss by the conventional rolled steel members (RS) namely Type 1 truss and by pipe sections namely Type 2 ...2 truss structures was modeled and ...

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Fully Stressed Design of Howe Truss using STAAD.Pro Software

Fully Stressed Design of Howe Truss using STAAD.Pro Software

... Warren Truss using Topology Optimization in which 9 warren trusses have been considered with distinct span and height and each truss was subjected to 9 different loading conditions and 81 cases were ...

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... pyramidal truss structures as a filler material of energy absorbing ...pyramidal truss structures without tube wall constraint were ...pyramidal truss structures with three ...

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Topology optimization for the seismic design of truss-like structures

Topology optimization for the seismic design of truss-like structures

... of truss structures, the average of optimum material distribution pattern corresponding to the four selected earthquakes were calculated for the previous example using different target ductility ...example ...

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Effects of Impact Loads on Mechanical Performance for Truss Structure

Effects of Impact Loads on Mechanical Performance for Truss Structure

... DOI: 10.4236/wjet.2017.53B015 136 World Journal of Engineering and Technology about vehicle impact mainly focus on bridges. Researches about the performance of truss under impact are limited but meaningful. This ...

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Mechanical Response of Octahedral and Octet Truss Lattice Structures Fabricated Using the CLIP Technology

Mechanical Response of Octahedral and Octet Truss Lattice Structures Fabricated Using the CLIP Technology

... The structures are approximately 25 mm x 25 mm x 25 mm. The fundamental building block for the octahedral structure is a regular octahedron whereas the octet structure has a regular octahedron as its core ...

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Performance Study for Optimum Location of Multi Outrigger and Belt Truss System in Tall Structures

Performance Study for Optimum Location of Multi Outrigger and Belt Truss System in Tall Structures

... belt truss (FSCW+O+BT33-22-11), the percentage reduction in the latter model was found to be ...belt truss does not influence much in reducing the core wall bending ...

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Nonlinear Analysis of Structures Cable - Truss

Nonlinear Analysis of Structures Cable - Truss

... cable structures exhibit a flexibility that cannot be attributed to low axial stiffness of the elements; but the geometry of the structure [3], in many cases are structures that has large displacements, for ...

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An Analytical Study on Application of Virtual Outrigger in Tall Buildings to Reduce Disproportionate Collapse and Increase Efficiency

An Analytical Study on Application of Virtual Outrigger in Tall Buildings to Reduce Disproportionate Collapse and Increase Efficiency

... belt truss as plain couples and is transmitted to foundation as vertical forces through belt ...belt truss system, the size and shape of building, floor-to- floor height of the building, and the core ...

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An Analytical Study on Application of Virtual Outrigger in Tall Buildings to Reduce Disproportionate Collapse and Increase Efficiency

An Analytical Study on Application of Virtual Outrigger in Tall Buildings to Reduce Disproportionate Collapse and Increase Efficiency

... or truss tying core to outrigger columns which refrains the core from rotation under effects of lateral loading and the belt member connects all the outer columns together to distribute the load equally and lessen ...

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Optimization of Fink and Howe Trusses

Optimization of Fink and Howe Trusses

... For a given problem there can be an infinite feasible designs, few of them are better than the others. Now the question arises that, how do we say that the considered point is better than others? For this, we must have a ...

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