兵工自动化2026，Vol.45Issue(3)：34-38,5.DOI:10.7690/bgzdh.2026.03.006
NiCr3O5涂层对风洞引射器薄壁结构的振动特性影响
Effect of NiCr3O5 Coating on Vibration Characteristics of Thin-walled Structure of Wind Tunnel Ejector
余鑫 1毛代勇 1魏志 1杨可朋1
作者信息
- 1. 中国空气动力研究与发展中心高速所,四川 绵阳 621000
- 折叠
摘要
Abstract
The influence of NiCr3O5 damping coating on the vibration characteristics of thin-walled components of ejector pipes was studied in order to solve the problem that the ejector pipes are prone to fatigue cracks due to severe vibration.NiCr3O5 damping coating was sprayed on the weld seam of the wind tunnel ejector pipe by using a self-developed portable high velocity oxygen fuel(HVOF)spraying device.The natural characteristics,vibration response and damping of the ejector pipe before and after coating were experimentally studied and numerically simulated,and the results were compared with the experimental results.The results show that the NiCr3O5 coating can improve the damping performance of the thin-walled structure of the wind tunnel ejector and reduce the fatigue damage caused by the airflow vibration.关键词
引射器管道/薄壁结构/减振涂层/频响函数/阻尼比Key words
ejector pipe/thin-walled structure/damping coating/frequency response function/damping ratio分类
机械制造引用本文复制引用
余鑫,毛代勇,魏志,杨可朋..NiCr3O5涂层对风洞引射器薄壁结构的振动特性影响[J].兵工自动化,2026,45(3):34-38,5.
