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| Content Provider | Springer Nature Link |
|---|---|
| Author | Shi, Yue Dong, Lihong Wang, Haidou Li, Guolu Liu, Shenshui |
| Copyright Year | 2016 |
| Abstract | Crankshaft is regarded as an important component of engines, and it is an important application of remanufacturing because of its high added value. However, the fatigue failure research of remanufactured crankshaft is still in its primary stage. Thus, monitoring and investigating the fatigue failure of the remanufacturing crankshaft is crucial. In this paper, acoustic emission (AE) technology and machine vision are used to monitor the four-point bending fatigue of 42CrMo, which is the material of crankshaft. The specimens are divided into two categories, namely, pre-existing crack and non-preexisting crack, which simulate the crankshaft and crankshaft blank, respectively. The analysis methods of parameter-based AE techniques, wavelet transform (WT) and SEM analysis are combined to identify the stage of fatigue failure. The stage of fatigue failure is the basis of using AE technology in the field of remanufacturing crankshafts. The experiment results show that the fatigue crack propagation style is a transgranular fracture and the fracture is a brittle fracture. The difference mainly depends on the form of crack initiation. Various AE signals are detected by parameter analysis method. Wavelet threshold denoising and WT are combined to extract the spectral features of AE signals at different fatigue failure stages. |
| Starting Page | 233 |
| Ending Page | 241 |
| Page Count | 9 |
| File Format | |
| ISSN | 20950233 |
| Journal | Frontiers of Mechanical Engineering |
| Volume Number | 11 |
| Issue Number | 3 |
| e-ISSN | 20950241 |
| Language | English |
| Publisher | Higher Education Press |
| Publisher Date | 2016-09-07 |
| Publisher Institution | Chinese Universities |
| Publisher Place | Beijing |
| Access Restriction | Subscribed |
| Subject Keyword | acoustic emission fatigue failure remanufacturing crankshaft wavelet analysis Mechanical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanical Engineering |
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