40Cr钢磨削加工结合面接触刚度研究

doi:10.3901/JME.260028

机械工程学报 ›› 2026, Vol. 62 ›› Issue (1): 384-394.doi: 10.3901/JME.260028

• 数字化设计与制造 • 上一篇

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40Cr钢磨削加工结合面接触刚度研究

白玉柱, 郭飞, 穆罕默德·伊姆兰, 索双富, 贾晓红

清华大学高端装备界面科学与技术全国重点实验室北京 100084

收稿日期:2025-01-22 修回日期:2025-06-09 发布日期:2026-02-13
作者简介:白玉柱，男，1980年出生，博士研究生。主要研究方向为精密仪器设备设计、机械接触刚度。E-mail：baiyz18@tsinghua.org.cn
郭飞，男，1988年出生，博士，副教授，硕士研究生导师。主要研究方向为针对国家重大装备及关键基础零部件的设计需求，开展流体密封技术(橡塑密封、特种静密封)及水润滑轴承等方面的研究工作。E-mail：guof2014@mail.tsinghua.edu.cn
贾晓红(通信作者)，女，1972年出生，博士，副教授，博士生研究生导师。主要研究方向为针对往复式和旋转式橡塑密封、静密封等接触式密封，探索密封机理，设计新型密封结构，研究密封失效准则、延寿方法和智能控制；同时开展与流体密封相关的机械系统研制工作。E-mail：jiaxh@mail.tsinghua.edu.cn
基金资助:
国家重点研发计划资助项目(2017YFF0108100)。

Research on Contact Stiffness of 40Cr Steel Grinding Joint Surface

BAI Yuzhu, GUO Fei, MUHAMMAD Imran, SUO Shuangfu, JIA Xiaohong

State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing 100084

Received:2025-01-22 Revised:2025-06-09 Published:2026-02-13

摘要/Abstract

摘要： 由于40Cr钢有较高的强度和韧性，在高精度设备制造中得到了广泛应用和重视。40Cr钢结合面微观接触机理的研究具有重要的实际应用价值。通过磨削加工方法获得40Cr钢粗糙表面, 白光干涉仪采集表面形貌数据，拟合微凸体轮廓参数，重新构建微凸体仿真轮廓，结合高斯分布函数分析微凸体高度分布，建立了抛物线y=cx²柱状微凸体法向接触刚度模型。设计法向接触刚度实验平台，测试40Cr钢磨削加工表面法向接触刚度值。将测试获得的法向接触刚度实验值与柱状微凸体模型仿真值对比分析，结果两者很接近，误差小于10%，证实了新模型的实用性。通过与三种典型模型在不同粗糙度尺度下的比较，证明了该模型的优越性。抛物线y=cx²柱状微凸体法向接触刚度模型，对40Cr钢粗糙表面接触动态、静态特性的预测和仿真研究提供了一种新理论模型。

关键词: 40Cr钢, 接触刚度, 仿真分析, 机械结合面

Abstract: Due to its high strength and toughness, 40Cr steel has been widely applied and valued in the manufacturing of high-precision equipment. The research on the microscopic contact mechanism of the joint surface of 40Cr steel has important practical application value. The rough surface of 40Cr steel is obtained by grinding processing method. The surface topography data are collected by white light interferometer. The contour parameters of the asperity are fitted. The simulation contour of the asperity is reconstructed. The height distribution of the asperity is analyzed in combination with the Gaussian distribution function, and the normal contact stiffness model of the parabolic y=cx² columnar asperity is established. Design a normal contact stiffness experimental platform to test the normal contact stiffness value of the ground processing surface of 40Cr steel. The experimental values of normal contact stiffness obtained from the test are compared and analyzed with the simulation values of the columnar asperity model. The results showed that the two are very close, with an error of less than 10%, confirming the practicability of the new model. The superiority of this model is proved by comparing it with three typical models at different roughness scales. The normal contact stiffness model of parabolic y=cx² columnar asperity provides a new theoretical model for the prediction and simulation research of the dynamic and static characteristics of rough surface contact of 40Cr steel.

Key words: 40Cr steel, contact stiffness, simulation analysis, mechanical bonding surface

中图分类号:

TG502

白玉柱, 郭飞, 穆罕默德·伊姆兰, 索双富, 贾晓红. 40Cr钢磨削加工结合面接触刚度研究[J]. 机械工程学报, 2026, 62(1): 384-394.

BAI Yuzhu, GUO Fei, MUHAMMAD Imran, SUO Shuangfu, JIA Xiaohong. Research on Contact Stiffness of 40Cr Steel Grinding Joint Surface[J]. Journal of Mechanical Engineering, 2026, 62(1): 384-394.

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40Cr钢磨削加工结合面接触刚度研究

Research on Contact Stiffness of 40Cr Steel Grinding Joint Surface

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