Agricultural machinery structure residual deformation prediction method based on welding component linkage effect

Abstract

The invention discloses an agricultural machinery structure residual deformation prediction method based on a welding component linkage effect. The agricultural machinery structure residual deformation prediction method comprises the following steps: S1, determining a dangerous area of a welding part in an agricultural machinery structure; s2, determining a linkage factor between damage areas under harmonic response impact; s3, measuring the residual stress of the damaged area after welding; s4, determining a linkage progressive function of different damage areas; and S5, predicting the residual deformation of the agricultural machinery structure based on the linkage effect. The method is high in prediction precision and can accurately and efficiently predict the residual deformation of the agricultural machinery structure.

Description

technical field [0001] The invention relates to a method for predicting the residual deformation of an agricultural machinery structure, in particular to a method for predicting the residual deformation of an agricultural machinery structure based on the linkage effect of welded components. Background technique [0002] With the rapid development of the agricultural economy, more and more agricultural machinery and equipment of the same type appear in farming operations. The structure of agricultural machinery equipment is mostly composed of welding of different parts, and the welding process occupies a large proportion in the total manufacturing process of agricultural machinery structure. However, due to the addition of the welding process, a certain amount of residual stress is bound to be generated in the key positions of multiple structural parts, resulting in a certain degree of residual deformation of the structure, which in turn affects the quality of farming operati...

AI Technical Summary

Problems solved by technology

However, due to the addition of the welding process, a certain amount of residual stress is bound to be generated in the key positions of multiple structural parts, resulting in a certain degree of residual deformation of the structure, which in turn affects the quality of farming operations.

At present, most of the residual deformation of the agricultural machinery structure is obtained through actual measurement, and it is often the detection of the deformation of a single part, without considering the influence of the welding linkage relationship between different structures on the residual deformation of the overall agricultural machinery structure

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