重庆理工大学学报（自然科学版）2016，Vol.30Issue(6)：6-12,7.DOI:10.3969/j.issn.1674-8425(z).2016.06.002
内燃机镁、铝合金铸件的振动响应和减振性能的试验研究
Experimental Research on Vibration Response and Vibration Damping Property of Magnesium Alloy Casting and Aluminum Alloy Casting
摘要
Abstract
The vibration response and vibration damping property of AZ91D magnesium alloy valve cover and ADC12 aluminum alloy valve cover were tested and compared by using engine bench test method.The result shows that the vibration response of AZ91D cover is less than ADC12 cover in middle and high engine speed condition which is greater than 1800 rmp and the vibration damping property of AZ91D cover is greater than ADC12 cover,and as the engine speed increases,the advantage increases.The contrast and analysis of frequency spectrum of acceleration signal shows the advantage of vibration damping property of AZ91D cover mainly concentrates on the band from 1 700 ~2 500 Hz when the engine speed is greater than 1 800 r/min and the damping capacity advantage of AZ91D magnesium alloy can be used to reduce amplitude sufficiently in the band to be responsible for it.关键词
内燃机/镁合金/罩盖/台架试验/振动响应/减振性能Key words
IC engine/magnesium alloy/engine cover/bench test/vibration response/vibration damping property分类
能源与动力引用本文复制引用
谭伟,米林,田铁,王苏磊..内燃机镁、铝合金铸件的振动响应和减振性能的试验研究[J].重庆理工大学学报（自然科学版）,2016,30(6):6-12,7.基金项目
国家自然科学基金资助项目 （）
