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- acoustic radiation pattern 声辐射型; 声发射构型
- 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。
- 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 mathematical model about acoustic radiation from structure submerged in unbounded sound field was developed using boundary element method. 摘要建立了无界声场中结构体声辐射的边界元数学模型。
- The examples actualize analysis of bilateral coupled vibration and acoustic radiation by using transitivity of CAE software results. 还利用CAE软件结果的可移植性,考虑了半封闭加筋圆柱结构内外分布不同介质时,实现了双边耦合振动声辐射分析求解。
- The frequency response of radiation pattern of a linear dipole antenna by Hertz dipoles field summation approximation. 分析赫芝偶极电磁场合成法计算偶极天线之辐射场型随频率之变化。
- Boundary element methods are used to calculate acoustic radiation of the piping system, which provides the theoretical direction for decr... 计算分析结果表明,本文所建立的振动和声辐射模型及算法有效,有助于该类问题的解决。
- Planar Radiation Pattern Comparison only for Consistent Source Current Direction, Field Polarization, and Field Plane. 作平面场型比较之电流源方向、电磁场极向、及场平面均必须一致。
- Cosecant Beam Generation Program for computing Phase distribution function and Radiation pattern. (译):余割波束生成程序的计算相分布函数和辐射模式。
- Rotating Radiation pattern from a Linear Array complete source code, has been tested. (译):旋转辐射模式从线性阵列完整的源代码,已经过测试。
- 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。
- The work includes several types of antenna measurements like efficiency, radiation pattern, VSWR and SAR. 负责一些天线指标的测试。例如,天线效率,辐射,VSWR,SAR等。
- Vibration transmission and underwater acoustic radiation characteristics experiment of floating raft system has an important technical application prospect. 对浮筏系统的振动传递及水下声辐射特性进行试验研究有其重要的工程应用前景。
- The transducers in acoustic logging tool are usually cylindrical piezoelectrical transducers and their acoustic radiation and acceptance have preferred directivity. 换能器的声辐射与接收指向性由其形状与尺寸确定。
- It incorporates the spherical nature of the radar's radiation pattern and so the image would not distort even at near field. 这种方法考虑到了波前的球面特性,所以即使在近场条件下,也不会像传统方法那样由于采用了平面波近似而使图象畸变。
- A calculation method and calculation results that show that a new kind of shaped paraboloid antennas can produce a ringy radiation pattern is presented. 摘要通过数值计算发现:将抛物线绕通过焦点的非抛物线对称轴旋转而形成的赋形抛物面天线可产生环状的方向图主瓣(此主瓣指的是主瓣最大值处)。
- A coupled FEM/BEM for solving fluid-structure interaction problem in structure-borne noise propagation and underwater acoustic radiation is present in this paper. 摘要本文以偶合的有限元素/边界元素法,来处理结构噪音传播与水中噪音辐射中弹性结构物与流体之互制问题。
- Verification of differences of characteristics of electromagnetic field image and radiation pattern in the near and far field are demonstrated. 验证电磁场影像及场型特性在近场与远场中之差异。
- The radiation pattern in the near and far field of each frequency component of the spectrum of current pulse on a transmission line. 传输线上脉波电流频谱中各频率成份在远近场区中场型之比较。