噪声源很多，从辐射声波的机理来看，有点源（简单声源）、偶极子源和四极子源等基本类型。实际的声源可以看成是这些声源的叠加。研究点源、偶极子源和四极子源的辐射特性，对噪声源辐射的研究，有普遍的和实际的意义。
...结构 关键字: 柴油机；机体；噪声辐射；声学传递向量；边界元法[gap=1200]Key words: diesel engine; block; acoustic radiation; acoustic transfer vector (ATV); boundary element method..
基于1个网页-相关网页
辐射噪声 [电子] radiated noise ; [电] radiation noise
放大自辐射噪声 amplified self-emission noise ; amplified spontaneous emission noise
辐射噪声限制系统 radiation-noise-limited system
航行辐射噪声 underway radiated noise
自发辐射噪声 ASEN
拖船辐射噪声 Tow ship radiated noise
铁道机车辐射噪声限值 The limite of noise emitded by rail bound locomotives
室内噪声来源于室外噪声辐射和室内声源。
Indoor noise comes from the emission of outdoor noise and indoor sources of noise.
定性讨论了这些参数对球状泡噪声辐射的影响。
The effect of these parameters on noise radiation of spherical bubble is qualitatively discussed as well.
为了减小轧件和锯片在锯切过程中的振动，降低噪声辐射。
In order to reduce vibration between roller pieces and saw blades on the process of sawing, we need reducing noises radiation.
应用推荐