文献类型：期刊文献

中文题名：基于多因素融合的多级透平轴系校中优化方法研究

英文题名：Research on multi-stage turbine shafting alignment optimization method based on multi-factor fusion

作者：狄广强[1];王一博[2];孙朝阳[1];于成海[1];温建锋[2];贾九红[2]

机构：[1]中国联合重型燃气轮机技术有限公司,上海201306;[2]华东理工大学机械与动力工程学院,上海200237

年份：2025

卷号：32

期号：6

起止页码：839

中文期刊名：工程设计学报

外文期刊名：Chinese Journal of Engineering Design

收录：;北大核心:【北大核心2023】；

基金：国家自然科学基金面上项目(52575175,52475156);国家重点研发计划资助项目(2023YFB3712100)。

语种：中文

中文关键词：精调;冷态校中;有限元;线性优化;热态验证

外文关键词：precision adjustment;calibration in cold-state;finite element;linear optimization;verification in hot-state

摘要：针对重型燃气轮机多级透平轴系校中难题,建立了融合轴承支反力和轴承间相对变位的优化校中方法,并进行了热态验证。首先,采用有限元软件ANSYS Workbench模拟轴系冷态变形,获得了关键轴承的支反力和垂直位移;其次,采用融合轴承支反力和轴承间相对变位的多参数优化方法,利用MATLAB软件计算得到最优解;接着,采用Fluent软件仿真分析进气蜗壳与轴系之间气流的分布,考虑了轴系在实际工作状态下的温度影响,来验证热态下最优解的有效性;最后,在冷态下将轴承5#下沉0.057 mm,对轴系进行了精调,并开展了热态下校中实验,结果表明轴系振动量符合指标要求,验证了校中方案的有效性。所提出的轴系校中优化方法考虑了轴系实际温度和复杂载荷,对于轴系的精调具有较好的指导意义。
Aiming at the alignment problem of the multi-stage turbine shafting of heavy duty gas turbines,an optimization alignment method integrating the reaction force of bearing and relative displacement between bearings was established,and a verification in hot-state was conducted.Firstly,the finite element software ANSYS Workbench was used to simulate the deformation in cold-state of the shafting,and the reaction forces and vertical displacements of the key bearings were obtained.Secondly,a multi-parameter optimization method integrating reaction force of bearing and the relative displacement between bearings was adopted,and the optimal solution was calculated by using the MATLAB software.Then,the Fluent software was used to simulate and analyze the airflow distribution between the intake volute and the shafting,the temperature influence under the actual working state of the shafting was taken into account to verify the validity of the optimal solution in hot-state.Finally,the bearing 5#was lowered by 0.057 mm in cold-state,the shafting was precisely adjusted,and an alignment experiment in hot-state was conducted.The results showed that the vibration of the shafting met the index requirements,verifying the effectiveness of the alignment scheme.The proposed shafting alignment optimization method takes into account the actual temperature and complex loads of the shafting,and has a good guiding significance for the precise adjustment of the shafting.