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Transient Analysis and Design Improvement of a Gas Turbine Rotor Based on Thermal-Mechanical Method
المؤلفون المشاركون
Yuan, Qi
Liu, Yang
Li, Pu
Zhu, Guangyu
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-05-08
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
The rotor is the core component of a gas turbine, and more than 80% of the failures in gas turbines occur in the rotor system, especially during the start-up period.
Therefore, the safety assessment of the rotor during the start-up period is essential for the design of the gas turbine.
In this paper, the transient equivalent stress of a gas turbine rotor under the cold start-up condition is investigated and the novel tie rod structure is introduced to reduce the equivalent stress.
Firstly, a three-dimensional finite element model of the gas turbine rotor is built, and nonlinear contact behaviors such as friction are taken into account.
Secondly, the convective heat transfer coefficients of the gas turbine rotor under the cold start-up condition are calculated using thermal dynamic theory.
The transient analysis of the gas turbine rotor is conducted considering the thermal load, the centrifugal load, and the pretightening force.
The temperature and stress distributions of the rotor under the cold start-up condition are shown in detail.
In particular, the generation mechanism of maximum equivalent stress for tie rods and the change tendency of the pretightening force are illustrated in detail.
The tie rod holes of the rear shaft and the turbine tie rod are the dangerous locations during the start-up period.
Finally, a novel tie rod is proposed to reduce the maximum equivalent stress at the dangerous location.
The maximum equivalent stress at this location is decreased by 15%.
This paper provides some reference for the design of the gas turbine rotor.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Yang& Yuan, Qi& Zhu, Guangyu& Li, Pu. 2018. Transient Analysis and Design Improvement of a Gas Turbine Rotor Based on Thermal-Mechanical Method. Shock and Vibration،Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1215011
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Yang…[et al.]. Transient Analysis and Design Improvement of a Gas Turbine Rotor Based on Thermal-Mechanical Method. Shock and Vibration No. 2018 (2018), pp.1-14.
https://search.emarefa.net/detail/BIM-1215011
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Yang& Yuan, Qi& Zhu, Guangyu& Li, Pu. Transient Analysis and Design Improvement of a Gas Turbine Rotor Based on Thermal-Mechanical Method. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1215011
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1215011
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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