Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 9, 2014
|
|
---|---|---|
Article Number | 14038 | |
Number of page(s) | 7 | |
DOI | https://doi.org/10.2971/jeos.2014.14038 | |
Published online | 05 September 2014 |
Regular papers
Study on the temperature field loaded by a shaped laser beam on the top surface of a cylinder head for thermal fatigue test
1
Department of Optoelectronic Engineering, Academy of Opto-Electronics, Chinese Academy of Sciences, No. 9 Dengzhuang south Road, Haidian District, Beijing 100094, People’s Republic of China
2
Key Laboratory of Mechanics in Advanced Manufacturing, Institute of Mechanics, Chinese Academy of Sciences, No. 15 Beisihuan west Road, Haidian District, Beijing 100190, People’s Republic of China
3
State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084, People’s Republic of China
Received:
25
May
2014
Revised:
20
August
2014
In thermal fatigue test, the key point is whether the temperature field on the top surface of cylinder head induced by the heat source can well match it in real service. In order to produce the target temperature field in service which is measured by thermocouples, shaped laser beam generated by diffractive optics element (DOE) is chosen as the heat source to irradiate on the top surface of cylinder head. The DOE is designed based on the Gerchberg-Saxton (GS) algorithm and the simulated temperature field is calculated by finite element model (FEM). The results show that the simulated and experimental temperature field can well match the target one which demonstrates that this method is feasible to produce the target temperature field and can be used in thermal fatigue test.
Key words: Temperature field / shaped laser beam / diffractive optics element / thermal fatigue test
© The Author(s) 2014. All rights reserved.
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