Accurate constraint condition-based cylindrical gearing optimization design method and accurate constraint condition-based cylindrical gearing CAD (computer-aided design) optimization design system

Abstract

The invention provides an accurate constraint condition-based cylindrical gearing optimization design method and an accurate constraint condition-based cylindrical gearing CAD (computer-aided design) optimization design system, and belongs to the field of the optimization design method and the CAD optimization design system; the invention aims at overcoming the abuse that all key coefficients are processed as constants in the existing gear optimization method, and therefore the accuracy of an optimization result is effectively improved. The accurate constraint condition-based cylindrical gearing optimization design method comprises the following steps: inputting original parameters, saving computing configuration, computing key coefficients, reconstructing a tooth surface contact strength constraint condition, reconstructing a teeth bending strength constraint condition and optimizing iteration; the accurate constraint condition-based cylindrical gearing CAD (computer-aided design) optimization design system comprises the following modules: an original parameter input module, a computing configuration saving module, a key coefficient computing module, a tooth surface contact strength constraint condition reconstruction module, a teeth bending strength constraint condition reconstruction module and an iteration optimization module.

Description

technical field [0001] The invention relates to the fields of an optimization design method and a CAD optimization design system; in particular, a cylindrical gear transmission optimization design method and a CAD optimization design system based on precise constraint conditions. Background technique [0002] As the core component of various transmission systems, cylindrical gear transmission is widely used in the field of construction machinery. During the design process of cylindrical gear transmission, in order to ensure the necessary strength and high enough safety factor, the redundancy of parameters such as the number of teeth, modulus, and tooth width is usually caused, which makes the gears designed according to the traditional method less bulky and heavier. bigger. Therefore, it is necessary to optimize the structure of gears. However, the gear optimization problem involves the calculation of the gear strength constraints. When accurately calculating the key coeff...

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Problems solved by technology

However, the gear optimization problem involves the calculation of the gear strength constraints. When accurately calculating the key coefficients required for the gear strength, it is necessary to check a large number of charts and curves according to the national standard, resulting in a very large calculation workload. Therefore, the existing methods When performing gear optimization problems, the key coefficients in the strength constraints are treated as constants, or simplified and approximated to a certain extent, resulting in incomplete and inaccurate optimization results

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