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- People are interested in the study of ASAC system based on the radiation modes of radiation structure in recent years, and the system can reduce sound radiation power by controlling radiation modes. 其中以声辐射模态为基础的ASAC系统是近年来的研究热点。 这种方法是通过声辐射模态的抑制来使结构的辐射声功率降低。
- Design of sound radiation mode sensors by using PVDF piezoelectric film 利用PVDF压电膜设计声辐射模态传感器
- Two Dimension Structural Sound Radiation Mode Sensor is Designing in ASAC System ASAC系统中两维声辐射模态传感器设计的研究
- sound radiation mode 声辐射模态
- Measurement of Adjoint Coefficients of Sound Radiation Modes for the Beam with Arbitrary Boundary 任意边界梁的声辐射模态伴随系数测量
- In this paper, the effect of disc muffler on vibration and sound radiation of worm shell is discussed. 摘要探讨了圆盘型进气消声器对蜗壳振动和声辐射的影响。
- The radiation mode image and total power are obtained by hot test, which is based on precisely calibrating of the measurement system. 在准确标定测量系统的基础上进行了热测实验,得到了辐射模式图和辐射总功率。
- The vibration and sound radiation behaviors of the stem of submarine with rudder and vane are studied. 摘要针对带有舵翼的水下航行器尾部结构模型，研究舵翼对水下航行器尾部的振动及声辐射的影响。
- 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。
- In order to reduce sound radiation of a structure, the method of Active Structural Acoustic Control (ASAC) was developed in the 1980s. 自八十年代后期以来，为了更为有效地降低结构声辐射，人们提出了主动结构声学控制(ASAC)。
- The singular integration will affect the precision of the result while the Boundary Element Method (BEM) is used in calculating sound radiation. 边界元法应用于计算辐射声场时，由于奇异积分的存在，会影响到计算结果的精度。
- The current study is to investigate the relationship between the sound radiation and enclosure vibration by using a laser vibrometer. 利用激光测振仪，测试了箱体振动速度随频率的变化，分析了前几个振动模态的声辐射能力。
- In this paper,ring-stiffened cylindrical shells coated with internal deck are experimented on vibration and sound radiation. 对具有内部甲板的环肋柱壳模型进行振动和声辐射试验。
- The numerical results explain that the vibration and sound radiation of stern can be degraded by enforcing the rigidity of rudder or reducing the length of the vane. 结果显示舵翼结构与周围流体的相互作用很大，改变其尺寸和刚度会使得模型的声压发生很大的变化，同时流固耦合现象的存在使得模型在水中的频率明显下降，并且模态阶数的顺序也发生了改变。
- A new theory, named the Resonance Radiation Theory (RRT), is presented in order to deeper understalldingthe mechanisms of sound radiation by submerged structure. 为了深入认识水中结构的声辐射机理，木文提出一个称为共振辐射理论（ResonanceRadiationTheory－RRT）的新理论。
- For improved sound radiation capability, the size and the shape of the enhancer can be modified in various ways, including a frustoconical, parabolic, or bell-shaped enhancer. 为了改善声音的辐射能力，特别是在中频和高频范围内的辐射能力，增强器的尺寸和形状可以有多种变化的形式，包括截锥形、抛物面形或者钟形等。
- It is important in ASAC system based on acoustic radiation modes to obtain adjoint coefficient of the radiation modes. 基于声辐射模态理论进行ASAC控制系统中的一个重要内容就是获得声辐射模态伴随系数。
- When the conductance of sound radiation for IDT is equal to the output conductance for the matching network, the reflection loss and transmission loss can be reduced. 叉指换能器的声辐射电导等于匹配网络输出端电导时，可以减小反射损耗和传输损耗。
- It is important in ASAC based on acoustic radiation modes to obtain adjoint coefficients of the radiation modes. 声辐射模态伴随系数的获取是基于声辐射模态理论进行 ASAC控制中的重要环节。
- A new piezoelectric sensor design for a clamped-clamped plate is presented to measure its amplitudes of the first three radiation modes. 以固定支撑板为例,提出一种阵列式压电式传感器的设计方法测量前三阶声辐射模态幅值。
