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- The laser vibrometer based on the surface vibration for measuring and analyzing the radiating noise of the 4120SG diesel engine is proposed. 摘要以4120SG柴油机为研究对象,提出基于激光测振的表面振动法测量柴油机辐射噪声。
- Low radiation noise based on its toroidal construction.? 环形结构辐射噪音低.
- Reduce tire/wheel unbalance and tire radiated noise. 减少车胎/轮不平衡性和车胎的辐射噪声。
- Study on Radiating Noise Calculation of Engine Sump 内燃机油底壳辐射噪声的计算研究
- A separation method of naval ship radiated noise sources using measure data of radiated noise was introduced. 介绍一种从舰艇辐射噪声数据中分离辐射噪声源的方法.
- Abstract :A passive long wave cochlea model is applied to extract audial feature of naval vessel radiation noise. 摘 要 :为提取舰船噪声听觉特征,应用被动长波模型对舰船噪声进行了分析,得到噪声信号的二维时空分布。
- A method for extracting modulated information from radiated noise was discussed. 摘要讨论了一种从辐射噪声中提取调制信息的联合方法。
- Such damage can be caused by EMI or radiated noise from factory equipment surrounding the encoder. 这样的损坏可以是由编码器周围的工厂设备的电磁或放射性噪音所造成。
- Shielding is required because high impedance circuitry is susceptible to pickup of spurious radiated noise. 由于高阻电路容易拾取杂散的辐射噪声,所以需要采取屏蔽措施。
- The radiation noise of gearbox housing is studied by the use of combined the FEM and BEM. 摘要采用有限元和边界元联合的方法对变速器箱体的辐射噪声进行分析研究。
- The results show that the method can effectively separate the dynamic modulation from other parts of radiated noise, and extract harmonic features. 结果表明,该方法可以有效地实现动态调制分量与其他信号的分离,准确提取谐波特征。
- The simulation results are in accordance with the characteristics of the radiated noise at near distance in the foreign literature,which thus ... 仿真结果与国外文献提供的船舶水下辐射噪声近场特性吻合,验证了所建模型的正确性。
- The finite element (FEM) and the boundary element method (BEM) are combined together to solve the underwater radiation noise of ships. 本文采用有限元/边界元(FEM/BEM)方法对船舶水下辐射噪声特性进行研究。
- Vibration characteristics of an engine oilpan are analyzed using FEM and radiated noise from the oilpan surface is researched. 利用有限元法分析某发动机油底壳的振动特性,对其表面辐射噪声进行研究。
- The result shows that these structural changes may help to lower the vibration of the oil pan, and finally reduce the radiated noise. 结果表明,改变加强板结构可以减小油底壳的振动,进而降低了发动机的噪声。
- A loud noise from the street diverted my attention. 街上一阵喧闹声转移了我的注意力。
- The noise awoke her from her revery. 这声音把我她从沉思中惊醒。
- That noise is driving me frantic. 那种噪音真要把我弄疯了。
- Throughout analyzing the obvious difference of radiate noise between the target of torpedo and other objects, the thesis finds out some essential characters for torpedo alert. 本文通过分析鱼雷目标辐射噪声特性与其它水下目标较明显的区别,提出用于鱼雷报警的基本特征;
- The thick walls deadened the noise from the street. 这道厚墙隔绝了街上的噪音。