Topology establishment, form finding, and mechanical optimization of branching structures

Zhao, Zhongwei; Li, Bing; Liu, Haiqing

doi:10.1007/s40430-018-1461-5

Cited by 10 publications

(2 citation statements)

References 9 publications

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“…The result is a strong 714 FINITE ELEMENT MODELING AND CONVERGENCE ANALYSIS construction with a low tolerance to imperfections and improved buckling load capability, similarly to the "GE-SEZ" structure proposed by EL JAI et al [19]. These techniques are typically embedded in mechanical optimization loops that make use of genetic optimization algorithms and finite elements method for mechanical computations [2,6,7,8,9,10,11]. Other researchers make use of plant growth modeling algorithms such as the L-system method, invent-ed by Lindenmayer in 1989 [12].…”

Section: Introductionmentioning

confidence: 99%

Finite Element modeling and convergence analysis of a new Biomimetic Branching Structure.

RIHANI,

Akhrif,

El Jai

et al. 2024

Stat., optim. inf. comput.

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Branching structures are gaining popularity in the field of advanced structures and building design; they offer high performance in terms of strength and lightweight design, along with the flexibility and precision enabled by modern processing technologies like Additive Manufacturing. This paper provides a concise overview of a geometric design procedure for a novel ribbed class of structures which was previously developed by the authors as a biomimetic optimal Micro-architected dome. Hereinafter, linear lattice models are suggested to carry out structural calculations using the finite element method (FEM). The objective is to examine discretization thresholding and strain energy convergence criteria. Results show that convergence is reached for numbers of elements per leg, ranging from 2 to 6, depending on the geometrical configuration of the dome being studied. The strain energy balance also exposes the influence of each internal force on the total mechanical response of the structure, pinpointing bending moment and axial force as the main decisive factors. As a perspective, the study will focus on limit state design calculations and Analysis of how the local geometry influences the overall stability and strength of this new design.

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Section: Introductionmentioning

confidence: 99%

Finite Element modeling and convergence analysis of a new Biomimetic Branching Structure.

RIHANI,

Akhrif,

El Jai

et al. 2024

Stat., optim. inf. comput.

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“…Finite element analysis methods for buckling include linear eigenvalues, nonlinear statics, nonlinear transients, and explicit dynamics. [1][2][3][4][5][6][7][8][9][10] Ngamkhanong et al 11 used the method of eigenvalue buckling analysis to study the phenomenon of cross rail buckling, analyzed the deformation of cross rail, and put forward the possibility of using the discrete method to reduce the track buckling, which provided the basis for the design of track and sleeper. Silva et al 12 used linear and nonlinear methods to study the buckling of sheet steel with different types of holes and determined the optimal geometric configuration.…”

Section: Introductionmentioning

confidence: 99%

Optimization design of curved outrigger structure based on buckling analysis and multi-island genetic algorithm

et al. 2021

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In the present work, the working state of the crane leg is analyzed and discussed, and its structure is optimized. SolidWorks software is used for modeling; ANSYS software is used for finite element analysis. First of all, the constrained finite element method (CFEM) is used to analyze the linear eigenvalue buckling and geometric nonlinear buckling of outriggers with different cross-section shapes. Prove that the curved leg has certain advantages in buckling. At the same time, analyzing the leg along a different path of buckling condition and stress changes provide the basis for the design of the subsequent reinforcement. After selecting the best cross-section shape of the outrigger, the agent-based multi-island genetic algorithm is used to optimize the structural parameters of the outrigger under the transverse stiffened plate reinforced structure and the longitudinally stiffened plate reinforced structure respectively. It is proved that the outrigger with the transverse stiffened plate has a significant effect in improving the bearing capacity and in the lightweight of the structure. Finally, the gap between the movable leg and the fixed leg was changed, the stress of different gaps was analyzed by using the finite element method, and the appropriate gap value was selected according to the high-order fitting curve.

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Branching Structure for Reinforcement Anchorage Produced with Wire and Arc Additive Manufacturing Technique

Babovic,

Laghi,

Kloft

2024

Construction 3D Printing

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Topology establishment, form finding, and mechanical optimization of branching structures

Cited by 10 publications

References 9 publications

Finite Element modeling and convergence analysis of a new Biomimetic Branching Structure.

Finite Element modeling and convergence analysis of a new Biomimetic Branching Structure.

Optimization design of curved outrigger structure based on buckling analysis and multi-island genetic algorithm

Branching Structure for Reinforcement Anchorage Produced with Wire and Arc Additive Manufacturing Technique

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