摘要
通过对内燃机车的运行噪声测试和分析,确定了在不同运行速度、不同测试位置时的噪声分布规律及传播途径,并对吸声材料的吸声系数进行测量和分析,确定了理想的吸声材料。
By analyzing the noise measurements in diesel locomotive,the paper describes interior noise distribution regularity and noise transmision approach of diesel locomotive at different speeds and measured poinds.The sound absorption coefficient of absorbing material was measured and analyzed so as to confirm perfect absorbing material.
出处
《内燃机车》
北大核心
2006年第12期16-17,22,共3页
Diesel Locomotives
关键词
内燃机车
司机室
噪声
吸声材料
diesel locomotive
drivers'cab
noise
absorbing material
