CN

周丹

Associate professor

Supervisor of Master's Candidates

Date of Employment:2004-04-01

School/Department:机械制造工程系

Administrative Position:制造工程系党支部书记

Education Level:Postgraduate (Doctoral)

Business Address:机械楼609东

Gender:Female

Degree:Doctoral degree

Status:Employed

Alma Mater:合肥工业大学

Discipline:Mechanical Design and Theory
Mechatronic Engineering
Other specialties in Mechanical Engineering
Mechanical Manufacture and Automation

Paper Publications

Theoretical and Experimental Study on Normal Contact Stiffness of Plane Joint Surfaces With Surface Texturing

Release time:2024-03-07 Hits:

DOI number:10.1080/10402004.2023.2197025

Journal:Tribology Transactions

Key Words:Surface texturing; normal contact stiffness; fractal theory; surface morphology; material properties

Abstract:Effects of surface texturing on normal contact stiffness have been investigated by experiments in previous research studies; however, there are relatively few theoretical models in this regard. This article aims to investigate the influence of surface texturing on the normal contact stiffness in theory and experiment. In the present research, a rough surface with surface texturing is divided into two parts, the textured zone and the remaining zone, and their theoretical models of normal contact stiffness are established respectively, considering surface morphology and material properties. For the textured zone, microtextures are modeled theoretically based on the three-dimensional topographic data obtained via a laser profilometer. For the remaining zone, the surface topography is characterized based on fractal theory, and a calculation model is established considering the elastoplastic deformation of surface asperities. In the experiment, the normal contact stiffness of specimens is obtained through the self-developed experimental platform. The proposed theoretical model is appropriate through the comparison of test results and theoretical predictions. The research results show that the effect of surface texture on the contact stiffness is related to the surface roughness, Sa. For the joint surfaces with Sa> 2.69 lm, the normal contact stiffness can be effectively increased through proper surface texturing

Indexed by:Journal paper

Document Type:J

Volume:66

Issue:3

Page Number:477-487

Translation or Not:no

Date of Publication:2023-04-13

Included Journals:SCI

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