... A-weighted sound pressure level A 声压级 abnormal noise 异常噪音 abnormal wear 异常磨损 ...
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...章摘要 关键词 声学； 异响； 声强法； 选择性声强法； 噪声源识别； 噪声控制[gap=1074]Key words acoustics ; abnormal noise ; sound intensity method ; selective sound intensity method ; noise source ident..
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...响_stmopen 关键词】: 异常噪声 信噪比 多道处理 地表一致性处理 振幅补偿 随机噪声衰减 [gap=627]Keywords】: abnormal noise; S/N ratio; multichannel processing; surface consistent processing; amplitude c..
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abnormal noise in music box 音乐盒内有异常噪音
abnormal noise during operation 操作时不正常噪音
Abnormal engine noise diagnosis equipment 异响诊断仪 ; 发动机异响诊断仪 ; 同响诊断仪
engine abnormal noise 发动机异响
The stability of the dynamic system is discussed with consideration of the influence of excitation frequency, damper ratio, etc. Some suggestions of improvement on the abnormal noise are presented.
从影响齿轮非线性动力响应特征的激励频率、载荷比、阻尼比等参数出发分析系统稳定的条件，并根据分析所得的结论对变速器异响问题的整改提出了建议。
参考来源 - 基于齿轮非线性动力学的变速器异响分析At last, this dissertation validates that the high-frequency resonance technique based on energy operator optimizing arithmetic is availability with rolling element bearing fault diagnosis. Characteristic parameters, such as crest factor, impulse factor and kurtosis, are sensitive to estimate abnormal noise.
最后,通过实验验证了基于优化能量算子法的共振解调技术在滚动轴承故障诊断中是非常有效的,而峰值因子、脉冲因子和峭度等特征参数均在不同程度上对异音敏感,可以用来初步评价滚动轴承的异音水平。
参考来源 - 基于能量算子解调法的滚动轴承故障诊断技术研究The thesis firstly analyzed the occurring mechanism of normal engine faults which represent as abnormal noise, investigated practical use of sound intensity technology in engineering, discussed the feasibility which use sound density frequency analysis to forecast engine fault.
论文从分析异响表现形式的发动机故障产生机理以及声强技术在工程上的具体应用,论述了利用声强频谱分析发动机故障的可行性。
参考来源 - 基于神经网络和声强技术的发动机故障预测系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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