Numerical Analysis of Magnetically Suspended Rotor in HTR-10 Helium Circulator Being Dropped into Auxiliary Bearings
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摘要: 辅助轴承是10 MW高温气冷堆(HTR-10)氦风机磁力轴承-转子系统中的辅助支承结构,其主要任务是在磁力轴承因失电而失效时支承高速转动的转子,是整个系统安全运行的保证。本研究以HTR-10磁力轴承氦风机实验台架中的辅助轴承为研究对象,使用ABAQUS有限元软件数值模拟转子跌落,分析滚动辅助轴承内圈与滚动体的变形及能量损耗特性,并与初步的实验结果进行比对,验证辅助轴承的可靠性,为磁力轴承在高温气冷堆核电厂中的应用提供重要的技术保障。Abstract: Active magnetic bearings（AMB） have been selected to support the rotor of primary helium circulator in commercial 10 Mega-Walt High Temperature Gas-cooled Reactor（HTR-10）.In an AMB system,the auxiliary bearings are necessary to protect the AMB components in case of losing power.This paper performs the impact simulation of Magnetically Suspended Rotor in HTR-10 Helium Circulator being dropped into the auxiliary bearings using the finite element program ABAQUS.The dynamic response and the strain field of auxiliary bearings are analyzed.The results achieved by the numerical analysis are in agreement with the experiment results.Therefore,the feasibility of the design of auxiliary bearing and the possibility of using the AMB system in the HTR are proved.
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Key words:
- HTR-10 /
- Helium fan /
- AMB /
- Rotor dropping /
- Auxiliary bearing
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