Method for analyzing online period of fan-shaped section guide roller of continuous casting machine based on finite elements

Abstract

The invention relates to a method for analyzing the online period of a fan-shaped section guide roller of a continuous casting machine based on finite elements, which comprises the following steps of:establishing a finite element mathematical model for a group of screw-down rollers of the fan-shaped section guide roller of the continuous casting machine, and collecting related data of the screw-down rollers of the fan-shaped section of the continuous casting machine, a bilinear material is used for simulating the dynamic behavior of the material in the high-temperature deformation process ofmetal, and a material constitutive curve is generated; carrying out theoretical analysis on nonlinear contact between a roller surface and a plate blank surface by adopting augmented Lagrange, carrying out iterative computation by artificially introducing penetration amount and an initial contact stiffness coefficient, estimation of the external fatigue period of the screw-down roller is completed, generating a life cloud picture and a damage cloud picture, and finding out the lowest point of the life for estimation; and calculating a further verification result by adopting the sub-model. Themethod is simple and reliable, estimation of the external fatigue period of the screw-down roller is completed in finite element software, and the method is rapid and efficient and can be widely applied to estimation and analysis of the online period of the fan-shaped section guide roller of the continuous casting machine.

Description

technical field [0001] The invention relates to a finite element mathematical modeling and simulation method, in particular to a method for analyzing the online period of a guide roller in a sector section of a continuous casting machine based on a finite element. Background technique [0002] The online cycle of mechanical parts is often related to the friction and wear conditions between parts. In the existing technology, the production of mechanical parts usually first designs the product according to the actual needs, and tests the product with a load. If the product fails to meet the design requirements during the experiment, redesign the product, and then carry out the test until the product is qualified. , this process not only takes a long time, but also has a relatively high rework rate, resulting in higher production costs and lower efficiency. The use of finite element mathematical modeling and simulation methods to accurately simulate the friction and wear of me...

AI Technical Summary

Problems solved by technology

[0003] One method in industrial applications is to obtain relevant data through experiments. However, the cost of experiments is high, and only information at certain points can be obtained during the experiment, and the distribution of data in the entire area cannot be obtained.

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