| Numerical simulation of thermal loading produced by shaped high power laser onto engine parts | |
Song HW(宋宏伟) ; Li SX(李少霞); Zhang L(张良); Yu G(虞钢); Zhou L; Tan JS; Song HW
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| Source Publication | Applied Thermal Engineering
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| 2010 | |
| Volume | 30Issue:6-7Pages:553-560 |
| ISSN | 1359-4311 |
| Abstract | Recently a new method for simulating the thermal loading on pistons of diesel engines was reported. The spatially shaped high power laser is employed as the heat source, and some preliminary experimental and numerical work was carried out. In this paper, a further effort was made to extend this simulation method to some other important engine parts such as cylinder heads. The incident Gaussian beam was transformed into concentric multi-circular patterns of specific intensity distributions, with the aid of diffractive optical elements (DOEs). By incorporating the appropriate repetitive laser pulses, the designed transient temperature fields and thermal loadings in the engine parts could be simulated. Thermal-structural numerical models for pistons and cylinder heads were built to predict the transient temperature and thermal stress. The models were also employed to find the optimal intensity distributions of the transformed laser beam that could produce the target transient temperature fields. Comparison of experimental and numerical results demonstrated that this systematic approach is effective in simulating the thermal loading on the engine parts. (C) 2009 Elsevier Ltd. All rights reserved. |
| DOI | 10.1016/j.applthermaleng.2009.10.018 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000275976600003 |
| WOS Keyword | FATIGUE BEHAVIOR ; YAG-LASER |
| WOS Research Area | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| WOS Subject | Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics |
| Funding Organization | National Nature Science Foundation of China [10502049] ; K.C. Wong Education Foundation of Excellent Young Scholar |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43699 |
| Collection | 先进制造工艺力学实验室 |
| Corresponding Author | Song HW |
| Recommended Citation GB/T 7714 | Song HW,Li SX,Zhang L,et al. Numerical simulation of thermal loading produced by shaped high power laser onto engine parts[J]. Applied Thermal Engineering,2010,30(6-7):553-560. |
| APA | 宋宏伟.,李少霞.,张良.,虞钢.,Zhou L.,...&Song HW.(2010).Numerical simulation of thermal loading produced by shaped high power laser onto engine parts.Applied Thermal Engineering,30(6-7),553-560. |
| MLA | 宋宏伟,et al."Numerical simulation of thermal loading produced by shaped high power laser onto engine parts".Applied Thermal Engineering 30.6-7(2010):553-560. |
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