Experimental Study on Friction Damping at Blade-Disk Joints

摘要：

The main failure mode of blades is the high-cycle fatigue failure caused by force vibration. The design of disk assemblies needs accurate, fast and robust predictive tools for the analysis of forced vibration response levels of bladed disks under operating conditions. An experimental system is designed to measure dynamic responses of non-rotating blade, in which the same stress and strain fields can be recreated. The dynamic responses of various mode of the blade are measured under different tensile loads acting on the blade and different exciting forces. The effects of contact state at blade-disk joints on the resonant frequency and resonant response level are analyzed from the test results. The experimental results can be used to verify the theoretical and numerical results.

关键词： blade-disk joint friction damping microslip resonant frequency

作者: Ren Dexin Hong Jie Chen Lulu Ma Yanhong

作者单位: School of Jet Propulsion Beihang University Beijing, China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Jet Propulsion and Power Engineering(第三届喷气推进与动力工程国际会议 ISJPPE)

会议地点: 南京

会议语种:英文

页码: 514-521

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）