航天推进技术研究院主办
REN Zhong,ZHU Donghua,XU Kaifu.Multiphysics-based simulation and optimization on strength and vibration security of turbine disk[J].Journal of Rocket Propulsion,2016,42(06):36-42.
多场环境下涡轮盘的强度与振动安全性仿真优化研究
- Title:
- Multiphysics-based simulation and optimization on strength and vibration security of turbine disk
- 分类号:
- V434-34
- 摘要:
- 涡轮盘作为发动机的关键部件,工作在高温、高负荷、高转速及大振动的环境中,由强度与振动问题引起的轮盘破坏是发动机的常见故障之一.本文采用气热固耦合的方法,对某发动机一级涡轮盘进行有限元结构与模态仿真,并采用相应的静强度与振动准则进行安全性分析.结果表明,轮盘中心孔处的静强度安全余量较小,且二节径、三节径耦合频率与工作频率的避开率小于10%,工作时存在共振危险.经过结构优化,将轮盘厚度增加25%,同时根部局部加厚,中心孔处应力水平显著降低,各节径耦合共振频率的避开率均大于20%,涡轮盘的安全性满足要求.
相似文献/References:
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Zhang Quanming,Bai Zhoujian.Analysis Oil quality stability of turbine
disk die forging process[J].Journal of Rocket Propulsion,2009,35(06):44.
[2]张继桐,黄道琼,郭景录,等.由转速判断涡轮盘行波谐振[J].火箭推进,2005,31(03):14.
Zhang Jitong,Huang Daoqiong,Guo Jinglu.Turbine disk traveling-wave resonance identification by using rotation speed[J].Journal of Rocket Propulsion,2005,31(06):14.
[3]张鹏飞,贾少锋,许开富,等.多级涡轮气热耦合仿真性能及强度对比研究[J].火箭推进,2020,46(01):76.
ZHANG Pengfei,JIA Shaofeng,XU Kaifu,et al.Comparative study on performance and strength of multi-stage turbine with aero-thermal coupling simulation[J].Journal of Rocket Propulsion,2020,46(06):76.