Thermal fatigue on pistons induced by shaped high power laser. Part I: Experimental study of transient temperature field and temperature oscillation
文献类型：期刊论文
| 作者 | Song HW(宋宏伟) ; Yu G(虞钢); Tan JS; Zhou L(周良); Yu XL
|
| 刊名 | International Journal of Heat and Mass Transfer
 |
| 出版日期 | 2008 |
| 卷号 | 51期号:3-4页码:757-767 |
| 通讯作者邮箱 | songhw@imech.ac.cn |
| 关键词 | Thermal Fatigue Temperature Field Shaped High Power Laser Hcf Thermal Shock Barrier Coatings Yag-Laser Behavior |
| ISSN号 | 0017-9310 |
| 通讯作者 | Song, HW (reprint author), Chinese Acad Sci, Inst Mech, Lab Laser Intelligent Mfg, Beijing 100080, Peoples R China. |
| 中文摘要 | Thermal fatigue behavior is one of the foremost considerations in the design and operation of diesel engines. It is found that thermal fatigue is closely related to the temperature field and temperature fluctuation in the structure. In this paper, spatially shaped high power laser was introduced to simulate thermal loadings on the piston. The incident Gaussian beam was transformed into concentric multi-circular beam of specific intensity distribution with the help of diffractive optical element (DOE), and the transient temperature fields in the piston similar to those under working conditions could be achieved by setting up appropriate loading cycles. Simulation tests for typical thermal loading conditions, i.e., thermal high cycle fatigue (HCF) and thermal shock (or thermal low cycle fatigue, LCF) were carried out. Several important parameters that affect the transient temperature fields and/or temperature oscillations, including controlling mode, intensity distribution of shaped laser, laser power, temporal profile of laser pulse, heating time and cooling time in one thermal cycle, etc., were investigated and discussed. The results show that as a novel method, the shaped high power laser can simulate thermal loadings on pistons efficiently, and it is helpful in the study of thermal fatigue behavior in pistons. (C) 2007 Elsevier Ltd. All rights reserved. |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Thermodynamics ; Engineering ; Mechanics |
| 关键词[WOS] | BARRIER COATINGS ; YAG-LASER ; BEHAVIOR |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1016/j.ijheatmasstransfer.2007.04.035 |
| 语种 | 英语 |
| WOS记录号 | WOS:000253661600033 |
| 公开日期 | 2009-08-03 ; 2009-09-14 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/26120]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Song HW,Yu G,Tan JS,et al. Thermal fatigue on pistons induced by shaped high power laser. Part I: Experimental study of transient temperature field and temperature oscillation[J]. International Journal of Heat and Mass Transfer,2008,51(3-4):757-767. |
| APA | Song HW,Yu G,Tan JS,Zhou L,&Yu XL.(2008).Thermal fatigue on pistons induced by shaped high power laser. Part I: Experimental study of transient temperature field and temperature oscillation.International Journal of Heat and Mass Transfer,51(3-4),757-767. |
| MLA | Song HW,et al."Thermal fatigue on pistons induced by shaped high power laser. Part I: Experimental study of transient temperature field and temperature oscillation".International Journal of Heat and Mass Transfer 51.3-4(2008):757-767. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。