| 师俊杰,吕云飞,孙大军,张俊.水池声场的快速计算方法[J].声学技术,2011,(2):144~147 |
| 水池声场的快速计算方法 |
| Fast numerical solution of sound field in water tank |
| 投稿时间：2010-04-04 修订日期：2010-07-15 |
| DOI： |
| 中文关键词: 收敛速度 水池声场 快速计算方法 本征值 |
| 英文关键词: convergence sound field in water tank fast numerical solution eigenvalue |
| 基金项目:国家863计划(2006AA090200) |
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| 中文摘要: |
| 基于封闭空间声场理论计算水池声场存在收敛速度慢的问题,提出了一种水池声场的快速计算方法,该方法通过将水池声场表达式由三重无穷级数展开转化为二重无穷级数展开,x、y和z三个方向本征值相互依赖等措施,有效地提高了声场计算收敛速度。同时,为避免计算溢出问题,改进了声场计算策略,保证了声场计算精度。数值仿真和试验都验证了该计算方法的有效性和正确性。 |
| 英文摘要: |
| A problem of convergence exists in computing the sound field in water tank through the wave theory in enclosing space.An efficient procedure for computation of the sound field in water tank is proposed in this paper,which adopts the following routines to achieve the fast-convergence:converting a triple sum infinite expression to a double sum one and making the eigenvalues in three orthogonal directions related to each other.In addition,another improved strategy is used to avoid the problem of computation overflow in PC implementation.Numerical simulation and tank trial have verified its effectiveness and correctness of this procedure. |
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