Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional Solidification
According to the bottle neck problem about low size precision and large wall thickness deviation of the single crystal turbine blade, considering the inaccuracy factors of boundary conditions during unidirectional solidification process, the contact element method was used to study the interaction b...
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Journal of Aeronautical Materials
2018-02-01
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Online Access: | http://jam.biam.ac.cn/CN/Y2018/V38/I1/33 |
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doaj-e25e3966cad445d2a096108f8c298ffb2020-11-24T21:16:58ZzhoJournal of Aeronautical MaterialsJournal of Aeronautical Materials1005-50531005-50532018-02-01381333910.11868/j.issn.1005-5053.2014.000107201801000107Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional SolidificationLI Shifeng0HE Aijie1QIU Fei2AECC Sichuan Gas Turbine Establishment, Chengdu 610500, ChinaAECC Sichuan Gas Turbine Establishment, Chengdu 610500, ChinaSchool of Mechatronics, Northwestern Polytechnical University, Xi'an 710072, ChinaAccording to the bottle neck problem about low size precision and large wall thickness deviation of the single crystal turbine blade, considering the inaccuracy factors of boundary conditions during unidirectional solidification process, the contact element method was used to study the interaction between the blade and the shuttering. Meanwhile, the practice temperature field data,the finite element method with the coupled stress field and temperature field, were used to simulate the unidirectional solidification of the single crystal turbine blade. Based on the analysis result, the stress distributing and blade deformation were qualitatively discussed. The result indicates that the max-residual stress presents at the root air-inlets, and the max-residual stress of root air-inlets is 28.4% higher than that of blade-body. The dynamic change of the temperature and the stress can basically been reflected by the coupled temperature/stress method. It can provide references for modifying process for reducing the cast residual stress, improving dimensional accuracy and dimensional stability in the unidirectional solidification process.http://jam.biam.ac.cn/CN/Y2018/V38/I1/33single crystal hollow turbine bladeunidirectional solidificationcoupled temperature/stressstress field simulation |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
LI Shifeng HE Aijie QIU Fei |
spellingShingle |
LI Shifeng HE Aijie QIU Fei Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional Solidification Journal of Aeronautical Materials single crystal hollow turbine blade unidirectional solidification coupled temperature/stress stress field simulation |
author_facet |
LI Shifeng HE Aijie QIU Fei |
author_sort |
LI Shifeng |
title |
Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional Solidification |
title_short |
Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional Solidification |
title_full |
Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional Solidification |
title_fullStr |
Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional Solidification |
title_full_unstemmed |
Stress Field Simulation of Single Crystal Turbine Blade During Unidirectional Solidification |
title_sort |
stress field simulation of single crystal turbine blade during unidirectional solidification |
publisher |
Journal of Aeronautical Materials |
series |
Journal of Aeronautical Materials |
issn |
1005-5053 1005-5053 |
publishDate |
2018-02-01 |
description |
According to the bottle neck problem about low size precision and large wall thickness deviation of the single crystal turbine blade, considering the inaccuracy factors of boundary conditions during unidirectional solidification process, the contact element method was used to study the interaction between the blade and the shuttering. Meanwhile, the practice temperature field data,the finite element method with the coupled stress field and temperature field, were used to simulate the unidirectional solidification of the single crystal turbine blade. Based on the analysis result, the stress distributing and blade deformation were qualitatively discussed. The result indicates that the max-residual stress presents at the root air-inlets, and the max-residual stress of root air-inlets is 28.4% higher than that of blade-body. The dynamic change of the temperature and the stress can basically been reflected by the coupled temperature/stress method. It can provide references for modifying process for reducing the cast residual stress, improving dimensional accuracy and dimensional stability in the unidirectional solidification process. |
topic |
single crystal hollow turbine blade unidirectional solidification coupled temperature/stress stress field simulation |
url |
http://jam.biam.ac.cn/CN/Y2018/V38/I1/33 |
work_keys_str_mv |
AT lishifeng stressfieldsimulationofsinglecrystalturbinebladeduringunidirectionalsolidification AT heaijie stressfieldsimulationofsinglecrystalturbinebladeduringunidirectionalsolidification AT qiufei stressfieldsimulationofsinglecrystalturbinebladeduringunidirectionalsolidification |
_version_ |
1726015044307648512 |