Damping sole structure optimization design method based on variable-size lattice filling

Abstract

The invention provides a damping sole structure optimization design method based on variable-size lattice filling. The damping sole structure optimization design method comprises the steps that S1, a sole midsole three-dimensional entity model under the human body neutral position gait is established in UG; s2, dividing a design area of the insole structure of the shoe sole, and applying a shape design constraint of a bidirectional draft constraint; s3, performing preliminary structure topological optimization through Ifire software to obtain a preliminary topological optimization result; s4, filling of different lattice sizes is carried out on a preliminary topological optimization result, an optimization target is set to be the minimization quality, and secondary optimization is realized through a set frequency constraint; and S5, comparing fundamental frequency results of the lattice vibration damping sole model to obtain an optimal vibration damping structure sole model. According to the method provided by the invention, lightweight sole structures with various lattice sizes are constructed, and the cost of materials for making shoes is reduced to a certain extent; and on the premise of ensuring the precision, the design and calculation cost is greatly saved.

Description

technical field [0001] The invention relates to the field of shoe sole structure design, in particular to a vibration-damping shoe sole structure optimization design method based on variable-size lattice filling. Background technique [0002] Lattice structure is widely used in various fields because of its excellent vibration damping properties, among which light-weight structure vibration-damping shoes are a popular research field in recent years. However, the current research on vibration reduction of soles is only limited to the buffer stage, that is, to improve the performance of sole compressive stress, and there are few researches on vibration reduction schemes from the perspective of vibration frequency response. SUMMARY OF THE INVENTION [0003] The main purpose of the present invention is to overcome the above-mentioned defects in the prior art, and propose a vibration-damping sole structure optimization design method based on variable-size lattice filling, which...

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Problems solved by technology

However, the current research on the vibration reduction of soles is only limited to the buffer stage, that is, to improve the performance of the compressive stress of the soles, and there are few studies on vibration reduction schemes from the perspective of vibration frequency response.

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