|
| A numerical analysis of fretting contact with rough surface based on conjugate gradient method and fast Fourier transform |
| Received:March 12, 2016 Revised:July 28, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201703008 |
| KeyWord:fretting contact rough surfaces CGM FFT energy dissipation |
| Author | Institution |
| 牛睿 |
重庆大学 机械工程学院, 重庆 |
| 万强 |
中国工程物理研究院 总体工程研究所, 绵阳 |
| 靳凡 |
中国工程物理研究院 总体工程研究所, 绵阳 |
| 王战江 |
重庆大学 机械工程学院, 重庆 |
|
| Hits: 1640 |
| Download times: 1132 |
| Abstract: |
| Most engineering surfaces are rough,therefore surface morphology and roughness play an important role in fretting contact.In the present study,the normal load is fixed as constant,while the tangential load varies during the contact process.First,an efficient fretting contact model is developed to simulate various rough surfaces,where normal and tangential tractions are obtained via conjugate gradient method (CGM) and Fast Fourier transform (FFT) algorithm is used to speed up the calculation of convolution.Second,fretting contact on a surface with a single asperity,sinusoidal wave and random roughness are analyzed.Results show that surface amplitude has an impact on tangential load-displacement curve and energy dissipation.The tangential displacement and energy dissipation increase with the increase of the amplitude of roughness. |
|
|
|