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- Based on the analysis of structural dynamics, the characteristics of identification of submarine main noise sources are discussed. 摘要基于结构动力学分析,讨论潜艇噪声源识别研究的特点;
- The satisfactory result shows that PSVD method is an effective tool for identifying main noise sources within an enclosed chamber, if the reverberation can be reduced down by some measure. 成功的应用实例表明,只要采取适当措施减少封闭声场内的混响现象,偏奇异值技术可以应用于此类声场的声源分析。
- The results show that the main noise source is the fuel cell auxiliary system while roof panel and rear quarter panel are the key parts contributing to noise radiation. 其总布置和噪声源有别于传统汽车,为了提高乘坐舒适性,很有必要研究其振动噪声特性。
- Accelerating noise was measured and analyzed for a passenger car, the inlet air noise of its engine has been found to be the main noise source during the car accelerating period. 运用该技术对某汽车的加速噪声进行测量和分析,发现发动机进气噪声是该车主要的加速噪声源。
- Abstract: In this paper the main noise source of SQ6450 type light car was judged by means of spectrum and correlation analysis of noise signal.The corresponding proposal reducing noise was presented. 文摘:对SQ6450轻型汽车进行了噪声测试,通过对噪声信号的频谱分析和相干分析,找出了主噪声源,并提出了降噪措施。
- In this paper the main noise source of SQ6450 type light car was judged by means of spectrum and correlation analysis of noise signal.The corresponding proposal reducing noise was presented. 对SQ6450轻型汽车进行了噪声测试,通过对噪声信号的频谱分析和相干分析,找出了主噪声源,并提出了降噪措施。
- Main Noise Source and Its Control of Motorcycle 摩托车主要噪声源及其控制方法
- Distinguishing of the main noise source by using coherent power spectrum 用相干功率谱识别主噪声源
- main noise sources 主要噪声源
- W is a zero mean white noise source. W是一个零均值的白噪声源。
- Use of shield for return current to noise source. 用屏蔽体作为负载电流的返回路径。
- In this case,field potential amplitade of the harmonic which is the lower frequency of two reverse harmonics which are adjacent to main wave, is reduced by the "borrow slot "method, to suppress the vibration and noise sources of the unit. 定于绕组采用借槽方法,为了降低与生波相邻的两个反向波中次数较低的那次谐波的磁势幅值。 以达到消弱机组振动和噪声源的目的。
- 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.
- The machine has to be operated in an environment that is free from strong noise sources such as high-frequency welder. 同时应在不受高频焊接机等强噪声源影响的环境下使用。
- An Investigation of Noise Sources and Me-asure of Noise Control in the City Undergro-und Buildings. Chen Yanxun. 城市地下建筑内噪声源调查及建筑噪声控制措施研讨
- In this thesis, FRAs' characteristics with focus on their noise sources will be introduced. 在实验的架构中我们把实验架构分成两个部分。
- This paper diagnosed the noise sources on DFH-MS25/35 gearbox, analyzed the reasons and proposed some solutions. 摘要介绍东方红-MS25/35系列拖拉机变速箱发响故障原因,及其具体改进措施。
- This is avoidable by arranging the barriers to encircle the noise source. 要避免上述情况出现,可安排以屏障围绕噪音源头。
- The noise from brick factory using duns as raw material is very severe.Among many noise sources,the hammer-crusher is the severest. 莱芜冶鑫建材煤矸石砖厂生产过程中噪声污染严重,现场监测诸多噪声源中,以锤式破碎机的噪声最为严重,治理难度较大;
- The Allan variance and PSD were utilized to analyze the output of the FOG,and some main noise of the fiber optic gyroscope could be extracted and confirmed,then the performance of ARMA and AR of the FOG was evaluated. 利用A llan方差及PSD分析法对光纤陀螺输出信号的分析;有效地分离并确定影响光纤陀螺输出性能的几种主要随机误差源;并对所建立的光纤陀螺ARMA模型和AR模型的精度进行了评估.