学科分类
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3 个结果
  • 简介:基于为计算健全向量的有弹性的寓言的方程方法,领域被学习了的方法。水里的向量领域和相应震波地被计算了为在有有弹性的楔底部的海洋的环境下文健全。为健全来源的不同频率和深度的健全领域分发上的效果被研究了,进底部有声能漏的结果表演,漏发生了的位置能被海洋深度的比率决定到波长,作为与正常相比模式理论。

  • 标签: 声场分布 弹性楔 矢量场 分布规律 底部 海洋环境
  • 简介:TheapplicationofBEMtocalculateacousticradiationfromclosedsurfaceinaninfiniteacousticme-diumhastheadvantagesoflessmemoryspace,higheraccuracyandfastercalculatingspeed.However,thesingularintegralsandthenonuniquenessproblemofsurfacehelmholtzequationatcharacteristicfrequen-ciesshouldbedealtwith.ItissuggestedinthispaperthatcombinationoftheinteriorHelmholtzequationanditsderivativeswithrespecttothecoordinatecomponentsofaninteriorpointformsanextraequation,inordertosolvetheproblemsofacousticradiationatvariousfrequencieswithsurfaceHelmholtzequation;ontheareawhichincludessingularpoint,thesingularintegralsareconvertedtoordinaryonesbypolarcoordinatetransformation.Asanexample.theacousticradiationfieldofclosedaxisymmetricsurfaceswithprescribedsurfacevelocitydistributioniscalculatedinthispaper.

  • 标签: interior SURFACE coordinate CALCULATING singular FASTER