Abstract
Focusing on the 3D topographic characteristics of rolling contact fatigue, a reconstruction method of the fatigue surface of roller based on point cloud data was proposed in this research. A 3D laser scanner was used to capture the data of point cloud on the surface of the fatigue roller. The gradient segmentation method was used to achieve segmentation of the fatigue contact surface, and the Kd-Tree algorithm in Statistical Outlier Removal filter was adopted to remove different types of noise. The greedy triangulation and hole repair and reconstruction of the curled point cloud were conducted. The experimental results showed that the segmentation accuracy of the fatigue contact surface was above 97.7%, the curling error rate of point cloud was 0.09%, and the maximum deviation of the reconstructed fatigue roller surface was 0.0199 mm. These methods can be applied to analyze the working conditions of roller specimen and contact fatigue.
Highlights
Contact fatigue is a kind of surface fatigue damage phenomenon in which the contact surface of contact material forms pits with the influence of long-term cyclic contact stress [1, 2]
In order to realize the reconstruction of the three-dimensional topography of the fatigue roller surface, this paper studies the 3D reconstruction algorithm, which can visualize the three-dimensional topography of the failure surface of the roller sample. en the experimental results of the threedimensional shape reconstruction of the roller sample are illustrated and analyzed
For the rolling contact fatigue test, in the present study, the fatigue failure of the roller specimen was taken as the research object. e Gocator2420 laser scanners produced by the LMI Technologies company (LMI) was used to obtain the three-dimensional information of the fatigue roller surface. e intact and defect-free standard roller surface were firstly used as the reference surface before acquiring the point cloud data
Summary
Contact fatigue is a kind of surface fatigue damage phenomenon in which the contact surface of contact material forms pits with the influence of long-term cyclic contact stress [1, 2]. In engineering fields, such as machinery, vehicles, ships, and aviation, some parts under rolling contact conditions, such as rolling bearings, shafts, cams, and gears, which often fail due to contact fatigue, are frequently used [3, 4]. E rest are the indirect detection method They are widely used at present, they all are unable to quantify the problem of fatigue pitting defect information and visualize issues, such as fatigue status
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
