摘要
采用声压测量法对柴油机进行了整机噪声的测量,通过试验研究成功分离了发动机的燃烧噪声、机械噪声及进气噪声。得出了在不同运行工况下发动机的燃烧噪声、机械噪声和进气噪声的声功率,并识别它们对整机噪声声功率的贡献度。
The diesel engine＇s noise is measured by using the acoustic pressure method. It separates successfully the engine＇ s combustion noise, mechanical noise and inlet noise in test. The noise＇ s acoustic power of above three noises are found and their contribution under different conditions are distinguished.
出处
《内燃机》
2007年第6期38-41,46,共5页
Internal Combustion Engines
基金
云南省省院省校科技合作计划项目(03Y252D)
云南省中青年学术技术带头人后备人才专项基金资助(2007PY01-07)
关键词
柴油机
声压
噪声
声功率
diesel engine
acoustic pressure
noise
acoustic power
