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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
Source PublicationApplied Thermal Engineering
AbstractRecently 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.
Indexed BySCI
WOS IDWOS:000275976600003
WOS Research AreaThermodynamics ; Energy & Fuels ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Energy & Fuels ; Engineering, Mechanical ; Mechanics
Funding OrganizationNational Nature Science Foundation of China [10502049] ; K.C. Wong Education Foundation of Excellent Young Scholar
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorSong 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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