噪声频谱 meaning in English
noise spectrum
Examples
- Noise analysis and reduction for model zh1110 diesel engine
1110型柴油机噪声频谱分析与降噪措施研究 - In the experiment , we measured the frequency of the exhausted noise , and studied the muffler influence with the different rate of expansion
通过试验测量了s195柴油机的排气噪声频谱，并且对采用不同膨胀比消声器的消声效果进行了试验研究。 - This article mainly concern the sound material in the engine compartment of a passenger car , and obtain that the old material which can not satisfy the need have to be replaced
摘要通过测量分析发动机舱内噪声频谱特性，对某型客车发动机舱的原用吸声材料进行测量，并得出了原有材料选用不适当的结论。 - At last , according to the requirement of noise reduction in a certain frequency scope , we optimized the thickness of each layer in the laminated composites by fem and optimization theory to realize effective using of material
结合有限元数值分析和优化设计理论，针对噪声频谱特性以及要求的降噪效果，进行了材料各组份的厚度的优化设计，以实现材料的经济高效的使用。 - The vibration of major parts of a diesel engine were measured by a series bench test , consequently , their radiating noise level in frequency domain as well as their contributions to the integrated engine ' s noise were both calculated
摘要通过台架试验测量了不同工况下柴油机各主要部件的表面振动信号，计算得到了它们各自的辐射噪声频谱，以及在整机噪声中所占的比例，从而得到各噪声源的排序。