| 涡轮叶顶间隙数值仿真 |
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| 引用本文： | 岂兴明,朴英,曹志松,矫津毅.涡轮叶顶间隙数值仿真[J].计算机仿真,2008,25(6). |
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| 作者姓名： | 岂兴明 朴英 曹志松 矫津毅 |
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| 作者单位： | 清华大学,航天航空学院,北京,100084;吉林大学,应用技术学院,吉林,长春,130022 |
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| 摘 要： | 叶顶间隙显著地影响着现代航空发动机的经济性和可靠性,叶顶间隙主动控制技术可以降低燃油消耗率的同时,保证安全性的要求.基于某型航空发动机的结构尺寸,分别建立了机匣、叶片、轮盘的数学模型.利用自行开发的叶顶间隙仿真程序,改进了叶片和涡轮盘数学模型,并与某型发动机整机的模拟程序相结合,计算了某型航空发动机高压涡轮叶顶间隙的时间历程变化.结果表明:叶顶间隙分别在慢车突然加速和反推力状态下出现最小值.叶顶间隙的计算结果基本上符合试验数据,说明该仿真程序不仅计算速度快,而且还具有足够的精度.
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| 关 键 词： | 叶顶间隙 航空发动机 高压涡轮 数值分析 |
The Numerical Analysis Program of the Tip Clearance of HPT |
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| QI Xing-ming,PIAO Ying,CAO Zhi-song,JIAO Jin-yi.The Numerical Analysis Program of the Tip Clearance of HPT[J].Computer Simulation,2008,25(6). |
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| Authors: | QI Xing-ming PIAO Ying CAO Zhi-song JIAO Jin-yi |
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| Affiliation: | QI Xing-ming 1,PIAO Ying 1,CAO Zhi-song1,JIAO Jin-yi 2(1.School of Aerospace,Tsinghua University,Beijing 100084,China,2. Applied Technology College,Jilin University,Changchun Jilin,130022,China) |
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| Abstract: | The tip clearance is one of the most concerned aspects of aero-engine's reliability and performance. Recent technological advance in the field of active clearance control promises to minimize the tip clearance loss, and guarantee the safety. Based on the structure of one type aero-engine, every part of high pressure turbine is modeled respectively. This paper developed numerical software and modified the numerical model of the blade and the turbine disk. Associated with one aero-engine simulation program, t... |
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| Keywords: | Tip clearance Aero-engine High pressure turbine Numerical analysis |
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