Optimization method and device for double-arm embracing rod waist ring cable based on firefly algorithm

Abstract

The invention discloses an optimization method and system of a double-flat arm embracing rod waist ring stay cable based on a firefly algorithm, wherein, the method comprises the following steps: setting the cross-sectional area of the waist ring stay cable as a size variable, the height of each layer of stay cable as a shape variable and the form of each layer of stay cable as a topological variable, and determining the preset value range of each variable; The preset maximum allowable stress of the double-arm embracing bar and cable, the preset maximum allowable displacement of the embrackingrod and the preset minimum allowable buckling factor are used to restrict. The synchronous optimization model is established, and the mass of the lumbar loop cable is taken as the objective function.The improved firefly algorithm is used to optimize the size, shape and topology synchronously. The mechanical properties are analyzed and calculated. The penalty function is used to deal with the constraint conditions and iteratively update the global optimal solution. The optimization method has the advantages of clear logic, concise flow, easy operation, few parameters to be adjusted, high computational efficiency and remarkable optimization effect.

Description

technical field [0001] The invention relates to the technical field of synchronous optimization, in particular to a method and device for optimizing a double-parallel-arm-arm-holding-rod waist-ring cable based on a firefly algorithm. Background technique [0002] As a special kind of lifting equipment, the double flat arm pole is relatively low in cost and easy to assemble. It has the advantages of heavy lifting, high efficiency and strong operability. It is suitable for high height, large root opening and heavy components. Large-scale transmission tower hoisting construction. As the height of the transmission tower gradually increases, the height of the pole is also increased. As a restraint device, the stay cable of the pole is very important for the safe construction of the pole. Double flat arm poles are frequently used, and a reasonable waist ring cable design can not only improve the strength and stability of the pole, but also reduce construction difficulty and cost....

AI Technical Summary

Problems solved by technology

[0003] Traditional topology optimization algorithms use the elastic modulus or cross-sectional area of ​​structural elements as design variables. The problem dimension is too high, the convergence speed is slow, and the optimization efficiency is low. It is difficult to solve practical engineering problems, and it is difficult to solve the simultaneous optimization of size, shape and topology. question

[0004] Although the firefly algorithm has strong optimization ability, its optimization process still suffers from the problem of premature convergence.

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