基于ANSYS Workbench的圆周石墨密封动态性能研究

Dynamic performance analysis of the circumferential graphite seal based on ANSYS Workbench

基于ANSYS Workbench分析平台,针对圆周石墨密封设计、使用中发现的问题,提出了圆周石墨密封全尺寸三维动态仿真分析方法,并使用此方法对圆周石墨密封进行了动态性能分析。结果表明,该仿真分析方法较好地反映了动态条件下,尤其是转子涡动情况下密封环的动态响应,可用于研讨转子涡动、封严压差、弹簧弹力、摩擦系数以及密封环结构等因素对密封环与跑道间动态间隙的影响规律。利用此动态仿真分析方法,可为圆周石墨密封的气体泄漏率计算、弹簧力设计、结构设计等提供技术牵引,同时也为圆周石墨密封的正向设计提供了理论基础。

A full-size three-dimensional dynamic analysis approach of circumferential graphite seal was created based on ANSYS Workbench to solve the problems occurred during the design and the use.Based on the approach,the dynamic performance of circumferential graphite seal was simulated.The results show that the analysis approach can simulate the dynamic characteristic of sealing ring under dynamic condi⁃tions,especially under rotor whirling condition.This analysis method can be used to analyze the relation⁃ship between rotor whirling,sealing pressure,spring force,friction coefficient,seal ring structure and clear⁃ance of circumferential seal.Furthermore,it can provide the technical support for leakage calculation,spring design and structure design of circumferential seal to found a theoretical basis for circumferential graphite seal design.