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- Study on Radiated Acoustic Field of Oil Pan by Liquid-Solid Coupled 用液固耦合方法研究柴油机油底壳辐射声场
- radiated acoustic field 辐射声场
- The acoustic field of wideband noise at low frequencies radiated from a short-range moving object in shallow water forms a hyperbolic interference pattern in LOFAR. 近距离目标辐射的低频宽带噪声通过浅海声场后,存LOFAR图上形成双曲线干涉条纹。
- Study on the radiation acoustic field characteristics of air-coupled high power compound transducers in flexurai vibration 气介式功率超声复合换能器的声辐射特性研究
- radiating acoustic field 辐射声场
- Based on the acoustic radi-ation modes and the acoustic field distribution modes, the formula for determining the acoustic power radiated from any vibrating surface is derived. The modal analysis in the acoustic radiation problems is enriched. 基于声辐射模态和声场分布模态;推导了计算任意形状振动表面辐射声功率的计算公式;丰富了声辐射问题中的模态分析内容.
- The radiated acoustic pressures are obtained by means of an expansion of independent functions generated by Gram - Schmidt orthonormalization using a group of spheroidal wave functions. 使用长旋转椭球函数得到一组独立函数,把声场中的声压表示为独立函数的线形叠加。
- The principle of the car acceleration noise is discussed and the acoustic field model for underneath car cavity is derived. 论述了轿车加速行驶噪声的原理,推导了轿车与地面间声场的声学模型。
- The trajectories of particle movements in a standing wave acoustic field are recorded by fast-speed video camera. 采用可视化实验的方法,拍摄可吸入颗粒在驻波声场中的运动轨迹。
- Show reduced scale model can accurate reflection actual hall acoustic field over loud time. 表示缩尺模型可以准确的反映实际厅堂声场馀响时间。
- A method for measuring acoustic field of electromagnetic ultrasound is introduced. 介绍了一种测量电磁超声声场分布的方法。
- It is very important to pick out the qualified flakes by acoustic field measurement in equipment manufacture. 通过声场测量,筛选出合格的压电陶瓷球片,在治疗设备的制造中显得尤为重要。
- Much less EPU times are required for calculating the superposing acoustic field than calculating the classical Fresnel integral. 用单阵元分布函数迭加所得的换能器声场分布的数值计算,比计算经典的Fresnel积分的运算量要小得多。
- Aim In order to simulate the agglomeration of fly ash particles in the acoustic field more exactly, a new math model is constructed. 目的为了更精确地模拟煤飞灰微粒在声场中的团聚机理,建立一种新的数学模型。
- The experimental research on the pipe flow under the influence of high-intens ity acoustic field is presented in this article. 用实验手段研究强声场对管道内气体流动的影响。
- Acoustic vector sensor can measures the pressure and particle velocity information of the same point in acoustic field simultaneously. 摘要 声矢量传感器能够同步、共点地拾取声场的声压和质点振速。
- Numerical simulations were performed and results show that significant attenuation of radiated acoustic power can be obtained, and sound radiation cancellation performance becomes better in low and medium frequencies. 进行了数值仿真,仿真结果表明,应用压电片能有效地抑制声呐设备中障板声辐射,抑制中低频的声辐射效果更好。
- Thus, this skin decouples the vibrating structure from the acoustic field by modifying the wavenumber spectrum of the radiating surface. 首先考虑在边界表面的一端具有脉冲或周期振荡式边界热通量的正算问题。
- Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity. 采用四波混频加强SBS的方法,其相干拍频驱动声子场,能提高SBS相位共轭保真度。
- Abstract: The horizontal-longitudinal correlations of low-frequency acoustic field in shallow water are inv-estigated based on experimental data. 文章摘要: 基于一次浅海声学实验数据,研究了浅海低频声场的水平纵向相关特性。