【摘要】 通过采用频域方法直接求解旋转声源辐射噪声的声压和声粒子速度矢量,建立了旋转声源辐射噪声的矢量声学研究方法。该方法的最大优势在于提供了一种直观、形象的方法显示声能量的传播途径。基于该方法分别分析了旋转声源在自由空间和边界散射情形下的声能量传播特征。更多还原

【Abstract】 A vector acoustics method is developed to investigate noise radiated from the rotating sources,where both the acoustic pressure and acoustic particle velocity are computed with the frequency-domain numerical method.The advantage of the proposed method is to directly display the acoustic energy propagation.The acoustic energy propagation features of the rotating source radiated in the free space and scattered bv the surface are analvzed based on the present method.更多还原