|
| Fatigue Test and Performance Analysis of HT240 Material Engine Cylinder Block |
| Received:November 10, 2017 Revised:April 15, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.04.012 |
| KeyWord:engine cylinder block HT240 material fluctuating stresses fatigue test |
| Author | Institution |
| REN Xiao-li |
Department of Mechanical Engineering, City College of Xi′an Jiaotong University, Xi′an , China |
| XU Hui-jiang |
Technology Center, Xi′an Power System engineering Project Branch Company, Shanxi Diesel Engine Heavy Industry Co., Ltd, Xi’an , China |
| SHI Yan-li |
Department of Mechanical Engineering, City College of Xi′an Jiaotong University, Xi′an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| Objective To determine the fatigue life and verify its reliability of the HT240 cylinder block. Methods Standard for fatigue test of AVL cylinder block was referred. According to the peak firing pressure of the engine, a certain safety margin of pulsating hydraulic pressure was selected to carry out pulse loading test of the cylinder block by simulating the actual working condition for four pieces of sample on a fatigue test machine. Results Cracks were easy to occur on the upper part of the cylinder block and the condition fatigue limit of the cylinder liner was 17.8 MPa under the condition of running for a certain number of times by the experimental data processing. At the same time, the number of cycles and the failure position of cylinder block main bearing wall at safety pressure of 21 MPa were determined. Conclusion These cylinder blocks basically meet the design requirements. It provides a theoretical basis for the bulk production and further optimization of cylinder blocks. |
| Close |
|
|
|