Elevator head sheave lightweight design method based on a radial basis function proxy model

Abstract

The invention discloses an elevator head sheave lightweight design method based on a radial basis function proxy model, and belongs to the field of lightweight design of large mine elevator head sheaves. The method comprises the following steps: firstly, by taking a head sheave of a large mine hoist as a research object, calculating stress distribution and amplitude of the head sheave under a normal working condition according to a finite element method, and verifying and analyzing a finite element model through field experimental data; then, defining eight structural parameters as design variables at spoke fabrication holes with relatively concentrated stress distribution, selecting sample points to establish a head sheave radial basis function proxy model, and performing lightweight design on the head sheave by taking head sheave mass minimization as a target and head sheave equivalent stress amplitude as a constraint; and finally, performing finite element analysis on the optimized head sheave three-dimensional model, and verifying the optimization precision. The calculation result is high in accuracy, lightweight design of the head sheave can be achieved, the mass of the single head sheave is reduced by 5.82% after optimization, and the equivalent stress amplitude is reduced by 0.41%.

Description

technical field [0001] The invention belongs to the field of lightweight design of the sky wheel of a large mine hoist, and relates to a lightweight design method of the sky wheel of a hoist based on a radial basis function proxy model. Background technique [0002] In recent years, with the rapid increase in the demand for mineral resources due to social and economic development, the problem of energy shortage has become increasingly prominent. However, the mineral resources in the shallow layer of the earth are increasingly depleted, and the development and utilization of deep mineral resources are becoming more and more important. In the mining industry, large-scale mine hoists are the most commonly used mining equipment. It is responsible for the lifting and lowering of mine minerals, staff, various materials and equipment, and is an extremely important part of the mining industry. As the main force-carrying body of the large mine hoist, the sky wheel ensures the wrappin...

AI Technical Summary

Problems solved by technology

[0003] The lightweight design of the existing large-scale mine hoist top wheel mainly relies on the experience of the designer and the summary of the design experience of the predecessors. This traditional design method has many shortcomings, not only the development cycle is long, the development cost is high, The design efficiency is low, and it is impossible to determine whether the optimized model is the optimal result

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