从理论上推导了声压和质点振速之间的相关方程组。
The correlation equations of pressure and velocity are deduced.
它是由声压型水听器与振速水听器在结构上组合为一体而构成。
The hydrophone is constructed with a pressure hydrophone and particle velocity hydrophone, and is called combined hydrophone.
研究海洋环境噪声场中声压和质点振速的三个正交分量间的空间相干。
The spatial coherences between the sound pressure and the three orthogonal components of the particle velocity in underwater ambient noise were investigated.
通过声压与振速的联合信号处理，充分利用水下目标辐射噪声场的信息。
Through processing sound pressure combine with particle velocity, the information of underwater target radiation noise field is entirely used.
推导了表面振速分布不均匀的辐射器的辐射阻抗与辐射器辐射声功率之间的关系。
The relationship between the radiation impedance and the acoustic radiated power of the radiator with non-uniform vibrating velocity on the surface is formulated.
本文研究运用组合传感器和声压、振速联合信号处理技术进行低噪声通过特性的测量。
A new method of low intensity radiated noise measurement is shown using acoustic combined sensor and combined signal processing with pressure and particle velocity.
爆破振动速度在竖直向有放大效应，对于距爆源等距离的竖直向的爆破振速大于水平向。
Blast vibration velocity has magnify effect in the vertical direction, the vibration value of vertical direction is bigger than horizontal direction at the same distance to blast place.
声矢量传感器是一种新型传感器，它可以空间共点，同时测量声场中的声压和振速信息。
The acoustic vector hydrophone is a new type sensor, which can simultaneously measure the pressure and particle velocity of the same point in acoustic field.
提出了一种爆破质点振速优化预测方案，建立了相应的预测模型，编写了预测模型的计算程序。
An optimized predicting scheme about particle vibration velocity has been put forward, a calculation model has been built, and a computer program has been tailored relevantly.
根据质点振速的安全控制标准，确定了不同药量爆破的震动安全距离，以及确定距离的安全药量。
The shocking safety distances for blasting with various charges and safe charge for specific distance are both determined according to the particle vibration velocity safety control standard.
矢量水听器由于能获取声场中标量(声压)和矢量(振速)信息，因此单个的矢量水听器就可实现目标方位估计。
An acoustic vector hydrophone measures the scalar acoustic pressure and the vector acoustic particle velocity, thus the DOA can be estimated by single vector hydrophone.
矢量传感器由声压传感器和振速传感器同心复合而成，由它而构成的矢量阵在信噪比增益上体现了更大的优越性。
A vector sensor consists of pressure sensor and particle velocity sensor. Vector array has more advantages in the gain of signal-to-noise rate.
结果表明应用该方法和运用《爆破安全规程》（GB6722-2003）并以振速作为判据所得的评价结论能取得一致。
The results indicate that the assessment conclusion educed form the application of this method and application of the《Blasting Safety Regulations》(GB6722-2003) are consistent.
本文对JHC6400型汽车后桥的噪声功率、表面声强、表面声压、表面振速及相应的频谱等进行了全面、系统的测量与分析。
The noise power, sound intensity, sound presure, vibration velocity and corresponding frequency spectrum of JHC6400 rear axle surface were measured and analysed.
从指向性指数出发分别推导了海面噪声场条件下和半各向同性噪声场条件下质点振速检测器增益和声能流检测器增益的理论极限。
The gain limitation of particle velocity and acoustic energy flux in the sea surface noise field and half-isotropic noise field is discussed based on orientation-exponent theoretic.
单矢量传感器具有可电子旋转的偶极子指向性，声压、振速信息联合矢量信号处理在噪声背景下有良好的探测能力，矢量(传感器)阵能取得更好的能力。
Acoustic vector sensor with the electronic rotating directivity of dipole can effectively detect signal in the background of noises. More information can certainly be obtained by vector sensor array.
卧螺离心机是一种具有微小速差的双转子系统，它的不平衡振动信号是一个拍振。
The horizontal decanter centrifuge is a dual rotor system with small rotating speed difference, of which unbalanced vibration is a "beat" signal.
压缩机节能改造不仅要满足管路系统流量、压头的需要，在确定降速幅度时还要进行喘振的校核。
Energy saving of centrifugal compressor not only satisfies the flux and pressure of pipeline system, but also verifies vibration when choosing the extent of lowering speed.
现场试验同样证实设计的自振空化射流喷嘴在保护钻头、减少钻头磨损及增加进尺、提高机械钻速方面有显著作用。
Field tests also show that the self-resonating cavitation nozzle is highly effective in reducing bit wear, increasing drilling footage and drilling speed.
第七章研究了转子系统降速过程中过临界转速时的减振问题，讨论了其平衡方法。
In chapter seven, the problem of reducing vibration in the speed-down process of a rotor system is noticed and its balancing methods are discussed in detail.
首先，根据汽车动力传动系统的扭振当量原则与方法，分别建立了怠速工况与正常行驶工况下发动机、双质量飞轮以及传动系统的无阻尼多自由度扭振当量模型。
First of all, the two undamped multi-freedom torsional vibration models of DMF under idling and driving condition are built based on the principles of vehicle power train equivalent torsional model.
讨论了发动机机体正常振动时的激振源和振动形式，并运用机械振动理论，研究了怠速抖动时它们的变化。
The paper discusses the exciting vibration sources and forms while engine normal vibrating, and studies how they change when idling engine is wobbling by means of mechanic vibration theory.
基于叶尖定时测振原理，对利用速矢端迹法分析叶片同步共振幅值的方法做理论推导，建立叶片同步共振的分析模型并进行仿真。
Theoretical derivation is done to the analyzing method of synchronous blade vibration by using speed-vector-end-tracking method, and so is the computer simulation to measurement process.
基于叶尖定时测振原理，对利用速矢端迹法分析叶片同步共振幅值的方法做理论推导，建立叶片同步共振的分析模型并进行仿真。
Theoretical derivation is done to the analyzing method of synchronous blade vibration by using speed-vector-end-tracking method, and so is the computer simulation to measurement process.
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