| 摘要: |
| 分析了影响叶尖间隙的诸因素，提出了计算瞬变状态下叶尖间隙变化的方法，并以某发动机为例，计算出一级压气机在不同工况下的间隙量，给出了间隙随时间变化的曲线图。 |
| 关键词: 压气机部件 叶尖间隙 热应力 热膨胀分析 |
| DOI： |
| 分类号:V231.11 |
| 基金项目: |
|
| A STUDY IN EFFECT OF HEAT TRANSFER ON BLADE-TIP-CLEARANCE |
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Wang Baoguan, Li Ling
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Dep. of Power Engineering, Nanjing Univ. of Aeronautics and Astronautics, Nanjing,210016
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| Abstract: |
| Transient clearances at blade tips are discussed, which transient rotational speeds, thermal parameters,physical parameters, geometrical parameters,etc. Among of these, the main effects are thermal expansion and centrifugal extension.With a series of calculations, a variation map of the clearance along with time has been drawn. |
| Key words: Compressor part Blade tip clearance Thermal stress Thermal expansion analysis |
