CAJ | 학술논문

轴承参数的选取是影响转子系统稳定性的主要因素,为此提出了基于正交试验的轴承参数优化设计的思想,并在某大型离心压缩机低压缸转子系统中进行应用,通过确定优选的轴承参数,综合评估了轴承参数对轴承一转子系统的稳定性和轴颈振幅的影响.对优化结果进行方差分析和F检验,找到影响系统稳定性和轴颈振幅的显著因子和不显著因子,所得结论对压缩机转子系统设计具有指导意义.
축승삼수적선취시영향전자계통은정성적주요인소,위차제출료기우정교시험적축승삼수우화설계적사상,병재모대형리심압축궤저압항전자계통중진행응용,통과학정우선적축승삼수,종합평고료축승삼수대축승일전자계통적은정성화축경진폭적영향.대우화결과진행방차분석화F검험,조도영향계통은정성화축경진폭적현저인자화불현저인자,소득결론대압축궤전자계통설계구유지도의의.
The selection of bearing parameters is one of the main influence factors on stability of rotor systems.To deal with this problem,parameter optimization design was presented based on orthogonal experiment,and it was applied in a low pressure cylinder rotor system of certain large-scale centrifugal compressor.By determining optimum bearing parameters,effect of bearing parameters(length-diameter ratio,clearance ratio,lubricating oil viscosity and preload) to bearing-rotor system stability and shaft vibration near bearing was comprehensively evaluated.The significant and non-significant factors influencing on system stability and journal vibration were determined by variance analysis and F test.These conclusions provided guidance to compressor rotor system design.