Numerical simulation of thermal loading produced by shaped high power laser onto engine parts

doi:10.1016/j.applthermaleng.2009.10.018

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	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
发表期刊	Applied Thermal Engineering
	2010
卷号	30 期号:6-7 页码:553-560
ISSN	1359-4311
摘要	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
收录类别	SCI
语种	英语
WOS记录号	WOS:000275976600003
关键词[WOS]	FATIGUE BEHAVIOR ; YAG-LASER
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
项目资助者	National Nature Science Foundation of China [10502049] ; K.C. Wong Education Foundation of Excellent Young Scholar
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/43699
专题	先进制造工艺力学实验室
通讯作者	Song HW
推荐引用方式 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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