流体机械2016，Vol.44Issue(3)：45-49,75,6.DOI:10.3969/j.issn.1005-0329.2016.03.011
高温熔盐泵的模态计算与分析
Modal Analysis of Molten Salt Pump at High Temperature
摘要
Abstract
In order to investigate the reliability of molten salt pump in running state,modal analysis of rotational and stationary parts in both none pre-stress and pre-stress states was carried out by employing ANSYS Workbench code.Based on the calculation results,the vibration performance of the pump was analyzed.Natural frequencies and amplitudes of rotational and stationary parts under different rotation phases were compared.The calculation results show the natural frequencies of the two parts in the 1st and 2nd order are close in none pre-stress state.Also,the natural frequencies of the 3rd and 4th order show the same tendency.Under the same order,the natural frequency of the stationary part is much higher than the rotational part.The first 6 order natural fre-quencies are far away from the main exciting frequencies,which makes the resonance less likely to happen.The natural frequency and amplitude of the two parts in the same order stay stable with the phase changing.The natural frequency in pre-stress state im-proves slightly compared with that in none pre-stress state.And the rotating parts enjoys a higher increase for 1.35%.Modal transformation for rotating parts mainly concentrate near the impeller while the stationary part is more likely to lie next to the inlet and outlet pipe.The analysis results will offer a reference for the structure design and optimization of molten salt pump.关键词
熔盐泵/模态分析/流固耦合/固有频率Key words
molten salt pump/modal analysis/multi-phase analysis/fluid structure interaction/natural frequency/pre-stress分类
机械制造引用本文复制引用
郭豹,刘厚林,王纳秀,王凯,吴贤芳..高温熔盐泵的模态计算与分析[J].流体机械,2016,44(3):45-49,75,6.基金项目
江苏省工业支撑项目（BE2014116）；江苏省产学研项目 （）
