Analysis method of quasi-static analytical model of deep groove ball bearing with combination angle misalignment

Abstract

The invention provides a quasi-static analytical model analysis method of a deep groove ball bearing considering combination angle misalignment, and belongs to the technical field of contact mechanics. The method comprises the following steps of: under the condition of less research on a deep groove ball bearing in an angle misalignment form with misalignment of a central axis azimuth angle time varying, calculating an abnormal pre-tightening load caused by misalignment of a combination in the deep groove ball bearing to obtain an abnormal pre-tightening force caused by misalignment of the combination angle; and then a quasi-statics model of the deep groove ball bearing under the action of an external load is established based on a double-layer Newton Laplace iteration method, a Newton Laplace method based on Jacobian matrix analysis is given, and the sensitivity of the solving algorithm to an initial value condition is relatively low. The contact and friction characteristics of the deep groove ball bearing with the misaligned combination angle under the influence of multiple factors can be obtained, not only is the influence of misalignment of a single angle, and technical support is provided for follow-up research of the bearing.

Description

Background technique [0001] The present invention proposes a combination angular misalignment method considering the lack of research on deep groove ball bearings with combined angular misalignment, especially the angular misalignment with time-varying azimuth of the misalignment axis. A quasi-static analytical model analysis method for deep groove ball bearings belongs to the technical field of contact mechanics. [0002] Deep groove ball bearings are widely used in rotor systems. Due to the skew of the bearing seat, the deformation of the main shaft, the processing error of the sleeve, and the violent assembly, the bearing has an angular misalignment error, which makes the bearing suffer from abnormal preload due to the angular misalignment before operation. In addition, when the bearing is in operation, it will also bear certain external loads, such as unbalanced loads caused by mass eccentricity, bearing support loads caused by gear meshing, etc. The abnormal preload cau...

AI Technical Summary

Problems solved by technology

[0003] Some scholars have carried out relevant research on angular misalignment of ball bearings, but most of the research objects are angular contact ball bearings and only study the influence of single angular misalignment. There are few studies on deep groove ball bearings with time-varying angular misalignment in azimuth

In addition, the research focuses on the contact and stiffness characteristics, and there are relatively few studies on the friction characteristics.

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