弹性环式挤压油膜阻尼器设计因素研究  

Investigation on Design Factor of Elastic Ring Squeeze Film Damper

作　　者：曹磊[1] 高德平[1] 江和甫[2] 

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210016 [2]中国燃气涡轮研究院,四川成都610500

出　　处：《燃气涡轮试验与研究》2006年第4期30-34,共5页Gas Turbine Experiment and Research

摘　　要：本文研究了一种新型挤压油膜阻尼器---弹性环式挤压油膜阻尼器(ERSFD)以改善传统挤压油膜阻尼器(SFD)的油膜力特性。通过对ERSFD数学物理模型的求解,研究了ERSFD油膜力特性,研究表明弹性环的变形能够从动地改善偏心率,从而有效改善刚度非线性。另外,本文也研究了影响油膜力特性的结构参数,为适合于工程应用的ERSFD结构设计奠定了基础。New-style squeeze film damper with elastic ring （Elastic Ring Squeeze Film Damper, ERSFD） was designed to improve characteristics of the squeeze film force of the SFD. Analytic model of Elastic Ring Squeeze Film Damper was presented in this paper. Theoretical investigations showed that the ERSFD had optimal effect on reducing vibration, comparing with the SFD, because it could passively adjust the squeeze film clearance by taking advantage of the elastic deformation of the Elastic Ring. Additionally, structural factor with influence on characteristics of the squeeze film torce was investigated to guide mechanical design.

关 键 词：弹性环式挤压油膜阻尼器 减振机理 油膜力特性 

分 类 号：V231.91[航空宇航科学与技术—航空宇航推进理论与工程]