Optimal design of four-bar mechanisms using a hybrid multi-objective GA with adaptive local search

Khorshidi, Majid Akbarzadeh; Soheilypour, M.; Peyro, M.; Atai, Ali Asghar; Panahi, Masoud Shariat

doi:10.1016/j.mechmachtheory.2011.05.006

Cited by 72 publications

(52 citation statements)

References 20 publications

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“…According to the proposed new optimization theory based on C# , the optimization system of cross hinge four-bar mechanism is developed to facilitate the numerical calculation (15) . Users only need to input center distance, length range of short link, angle swing amplitude of short link, and angle range of long and short links according to the device dimensions.…”

Section: Design and Development Of Optimization Softwarementioning

confidence: 99%

Optimal Design and Analysis of Cross Hinge Four-Bar Mechanism Based on Spatial Switching Method

Wang

Zhou

et al. 2013

JAMDSM

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Through dynamic simulation of the cross-hinge four-bar mechanism, it is found the primary reason for unbalance of the mechanism results from the unequal swing angle of driving link and driven link. To simplify analysis and calculation, a spatial switching approach was proposed to switch nonlinear problem into linear problem, by switching the problem of unequal swing angle of driving link and driven link into the problem of length variation of connecting link. Therefore, the length of driving link, the degree of its angle of intersection, and the amplitude of swing are three important parameters that influence the dynamic balance of the mechanism. An optimal design software was designed on the basis of establishment of target function and constraint conditions. Finally, through optimal calculation of the design software and Adams simulation, a case was employed to test the efficiency of the optimal design approach.

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Section: Design and Development Of Optimization Softwarementioning

confidence: 99%

Optimal Design and Analysis of Cross Hinge Four-Bar Mechanism Based on Spatial Switching Method

Wang

Zhou

et al. 2013

JAMDSM

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“…One task for designing a four-bar linkage is a path generation problem. This synthesis problem is aimed at finding significant link lengths of the mechanism to achieve a point on a coupler link moving along the desired path [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. The problem is usually converted to be an optimization problem, which is posed to find the dimensions of a mechanism and some other parameters.…”

Section: Introductionmentioning

confidence: 99%

Alternative Constraint Handling Technique for Four-Bar Linkage Path Generation

Sleesongsom

Bureerat

2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. This paper proposes an extension of a new concept for path generation from our previous work by adding a new constraint handling technique. The propose technique was initially designed for problems without prescribed timing by avoiding the timing constraint, while remain constraints are solving with a new constraint handling technique. The technique is one kind of penalty technique. The comparative study is optimisation of path generation problems are solved using self-adaptive population size teaching-learning based optimization (SAP-TLBO) and original TLBO. In this study, two traditional path generation test problem are used to test the proposed technique. The results show that the new technique can be applied with the path generation problem without prescribed timing and gives better results than the previous technique. Furthermore, SAP-TLBO outperforms the original one.

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“…The shape optimization for path synthesis of crank-rocker mechanisms using a wavelet based on the neural network was proposed to provide an approximate solution of the synthesis problem [10,11]. Optimization design for crank-rocker mechanism based on genetic algorithm was established and solved the design requirements of rocker expectation function with MATLAB genetic algorithm toolbox [12,13]. A structure design based on topology optimization was applicable to the thermal conductive and electromagnetic field [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Topology Optimization Analysis of Separation Mechanism for the Rice Trans-Planter

Chen

et al. 2018

Mathematical Problems in Engineering

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A mechanical topology regeneration design method based on the basic chain was presented which was reducing invalid topology design workload and improving optimization design efficiency. And it is used for configuration topology research of planetary separation mechanism of rice transplanting machine to verify its feasibility and effectiveness, which mainly consists of crank-rockerseparation mechanism, mechanical frame, planet carrier, total input shaft, and seedlings folder, and moving trajectory equation of seedling folder point A for the crank-rocker-separation mechanism is obtained according to the quadrangle vector closure principle. The topological synthesis diagram for motion chain for the CRSM was analysis by means of generalized treatment method based on theoretical optimization conditions and topological regeneration path design. The 6 kinds of topology diagram satisfying the design task for motion chair with high motion pair were obtained and the implemented mechanism diagram of kinematic chair for separation mechanism was designed based on the basic chain topology design method. The results show that topology design for the CRSM is relatively simplified for basic chain structure. And theoretical analysis of motion trajectory for the CRSM is relatively the same as the experimental results in the curve trend and relative error of angular displacement is reasonable and effective through test-rig comparative analysis with motion trajectory of crank-rocker-separation mechanism.

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Optimal design of four-bar mechanisms using a hybrid multi-objective GA with adaptive local search

Cited by 72 publications

References 20 publications

Optimal Design and Analysis of Cross Hinge Four-Bar Mechanism Based on Spatial Switching Method

Optimal Design and Analysis of Cross Hinge Four-Bar Mechanism Based on Spatial Switching Method

Alternative Constraint Handling Technique for Four-Bar Linkage Path Generation

Topology Optimization Analysis of Separation Mechanism for the Rice Trans-Planter

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