| 1. | Noise source identification of diesel engine by structure vibrating measuremen
通过表面振动测量确定柴油机的噪声源分布 |
| 2. | The results show that it is effective and feasible to diagnose faults of diesel engine by mean of un - disassembly using surface vibration signal
研究表明，利用柴油机表面振动信号对其进行不解体故障诊断是可行的。 |
| 3. | The results show that it is effective and feasible to diagnose faults of diesel engine by mean of un - disassembly using surface vibration signal .
研究表明，利用柴油机表面振动信号对其进行不解体故障诊断是可行性的。 |
| 4. | Then , local - wave ( lw ) method is imported especially for solving questions about nonlinear and non - stationary of diesel surface vibration signals
然后，针对柴油机系统的非线性和表面振动信号的非平稳特性，引入局域波分析方法。 |
| 5. | Based on the acoustic radiation mode analysis , the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed
摘要基于声辐射模态分析，建立了外部场压和结构表面振动速度之间关系的传递矩阵。 |
| 6. | Analyzing the sound characteristics of each part in frequency domain , it will be a guidance to the resolution in attenuating the engine ' s noise level
经与九点声压法测量得到的整机噪声结果对比，表明表面振动法识别柴油机噪声源是准确可靠的。 |
| 7. | H . - h . hung , y . - b . yang , “ elastic waves in visco - elastic half - space generated by various vehicle loads ” , solid dynamics and earthquake engineering , 21 ( 2001 ) , 1 - 17
吴政桦, “高速移动载重在半无限域弹性体表面振动之模拟” ,国立成功大学土木工程学研究所硕士论文, 1999年6月。 |
| 8. | Since there exists ill - posedness in reconstructing velocity on the surface and reconstructing pressures in the field , this paper attempts to introduce an iterative regularization method to resolve such inverse problems
由辐射声压重构结构表面振动速度和声场声压存在解的离散病态问题，试图利用一种迭代正则化方法来解决此类逆问题。 |
| 9. | The influences of the rotation of drops forced by orthogonal acoustic waves and the surface vibration on undercooling are analyzed and the conclusion that ultrasound can suppress the undercooling level has been drawn
分析了声场对过冷度的影响，认为声波引起的样品表面振动以及试样的绕轴自转都会抑制过冷度的进一步提高，不利于深过冷条件的获得。 |
| 10. | Then the experiment platform of the hypoid gear system was set up , and the lateral , longitudinal and axial vibration response of the bearing and the vibration acceleration response on the surface of the gearbox were measured
搭建了准双曲面齿轮传动系统的实验平台，测量了准双曲面齿轮箱轴承座的横向、纵向和轴向振动响应和箱体表面振动加速度响应。 |
