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工程设计学报
Chinese Journal of Engineering Design  2019, Vol. 26 Issue (4): 433-440    DOI: 10.3785/j.issn.1006-754X.2019.04.009
Modeling, Simulation, Analysis, and Decision     
Research on strength reliability of pull rod combined rotor based on Kriging surrogate model
WANG Ai-lun1,2, LIU Le1,2, LIU Qing-ya1,2
1.State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, China
2.College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
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Abstract  In view of the complexity of the reliability analysis for the gas turbine pull rod combined rotor, the strength reliability analysis method based on Kriging surrogate model is researched. The proxy response surface was sampled by Latin hypercube sampling, and the stress distribution characteristics of parts at the turbine end of the pull rod combined rotor were obtained. The strength reliability mathematical model of pull rod combined rotor system was established, which was used to study the strength reliability of pull rod combined rotor from the perspective of parts and system. The strength reliability of pull rod combined rotor under the joint influence of uncertainty factors and strength degradation was studied, and the variation rule of strength reliability of pull rod combined rotor was revealed. The study results provide a certain reference for the reliability design, safe and stable operation and shutdown maintenance of the gas turbine unit.

Received: 09 January 2019      Published: 28 August 2019
CLC:  TH 113.1  
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Cite this article:

WANG Ai-lun, LIU Le, LIU Qing-ya. Research on strength reliability of pull rod combined rotor based on Kriging surrogate model. Chinese Journal of Engineering Design, 2019, 26(4): 433-440.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2019.04.009     OR     https://www.zjujournals.com/gcsjxb/Y2019/V26/I4/433


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