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一种材料表面微观形貌的高精度建模技术及其对界面力学性能的影响。

A High Precision Modeling Technology of Material Surface Microtopography and Its Influence on Interface Mechanical Properties.

作者信息

Wang Yunlong, Mu Xiaokai, Yue Cong, Sun Wei, Liu Chong, Sun Qingchao

机构信息

School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China.

Logistics Engineering College, Shanghai Maritime University, Shanghai 201306, China.

出版信息

Materials (Basel). 2021 May 28;14(11):2914. doi: 10.3390/ma14112914.

DOI:10.3390/ma14112914
PMID:34071509
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8198072/
Abstract

In order to accurately and effectively obtain the contact performance of the mating surface under the material surface topography characteristics, a numerical simulation method of rough surface based on the real topography characteristics and a multi-scale hierarchical algorithm of contact performance is studied in this paper. Firstly, the surface topography information of materials processed by different methods was obtained and characterized by a measuring equipment; Secondly, a non-Gaussian model considering kurtosis and skewness was established by Johnson transform based on Gaussian theory, and a rough surface digital simulation method based on real surface topography was formed; Thirdly, a multi-scale hierarchical algorithm is given to calculate the contact performance of different mating surfaces; Finally, taking the aeroengine rotor as the object, the non-Gaussian simulation method was used to simulate the mating surfaces with different topographies, and the multi-scale hierarchical algorithm was used to calculate the contact performance of different mating surfaces. Analysis results showed that the normal contact stiffness and elastic-plastic contact area between the mating surfaces of assembly 1 and assembly 2 are quite different, which further verifies the feasibility of the method. The contents of this paper allow to perform the fast and effective calculation of the mechanical properties of the mating surface, and provide a certain analysis basis for improving the surface microtopography characteristics of materials and the product performance.

摘要

为了在材料表面形貌特征下准确有效地获取配合面的接触性能，本文研究了一种基于真实形貌特征的粗糙表面数值模拟方法及接触性能的多尺度分层算法。首先，利用测量设备获取不同加工方法处理的材料的表面形貌信息并进行表征；其次，基于高斯理论通过约翰逊变换建立了考虑峰度和偏度的非高斯模型，形成了基于真实表面形貌的粗糙表面数字模拟方法；第三，给出了一种多尺度分层算法来计算不同配合面的接触性能；最后，以航空发动机转子为对象，采用非高斯模拟方法对不同形貌的配合面进行模拟，并用多尺度分层算法计算不同配合面的接触性能。分析结果表明，组件1和组件2配合面之间的法向接触刚度和弹塑性接触面积差异较大，进一步验证了该方法的可行性。本文内容能够实现配合面力学性能的快速有效计算，为改善材料表面微观形貌特征及产品性能提供一定的分析依据。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/56e9a2a1a927/materials-14-02914-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/383140894032/materials-14-02914-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/53e55a51cdf0/materials-14-02914-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/41d5596ccdc5/materials-14-02914-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/81757f0c88ae/materials-14-02914-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/e279c8327833/materials-14-02914-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/f77e00120067/materials-14-02914-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/a74d6e4b8bde/materials-14-02914-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/783174fb1b1d/materials-14-02914-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/56e9a2a1a927/materials-14-02914-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/383140894032/materials-14-02914-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/f04e59bb7134/materials-14-02914-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/a454666578d8/materials-14-02914-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/f4e60b204a3d/materials-14-02914-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/53e55a51cdf0/materials-14-02914-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/41d5596ccdc5/materials-14-02914-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/81757f0c88ae/materials-14-02914-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/e279c8327833/materials-14-02914-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/f77e00120067/materials-14-02914-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/a74d6e4b8bde/materials-14-02914-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/783174fb1b1d/materials-14-02914-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e6e/8198072/56e9a2a1a927/materials-14-02914-g012.jpg

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