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基于混合法的内部结构声分析

彭伟才 赵高煜 何锃

彭伟才, 赵高煜, 何锃. 基于混合法的内部结构声分析[J]. 中国舰船研究, 2009, 4(5): 14-19. doi: 10.3969/j.issn.1673-3185.2009.05.003
引用本文: 彭伟才, 赵高煜, 何锃. 基于混合法的内部结构声分析[J]. 中国舰船研究, 2009, 4(5): 14-19. doi: 10.3969/j.issn.1673-3185.2009.05.003
Peng Weicai, Zhao Gaoyu, He Zeng. A Hybrid Method for Interior Structural-acoustic Analysis[J]. Chinese Journal of Ship Research, 2009, 4(5): 14-19. doi: 10.3969/j.issn.1673-3185.2009.05.003
Citation: Peng Weicai, Zhao Gaoyu, He Zeng. A Hybrid Method for Interior Structural-acoustic Analysis[J]. Chinese Journal of Ship Research, 2009, 4(5): 14-19. doi: 10.3969/j.issn.1673-3185.2009.05.003

基于混合法的内部结构声分析

doi: 10.3969/j.issn.1673-3185.2009.05.003
基金项目: 海军专项建设项目
详细信息
    作者简介:

    彭伟才(1981-),男,博士研究生。研究方向:结构振动与噪声控制。

  • 中图分类号: O42

A Hybrid Method for Interior Structural-acoustic Analysis

知识共享许可协议
基于混合法的内部结构声分析彭伟才,等创作,采用知识共享署名4.0国际许可协议进行许可。
  • 摘要: 有限元法(FEM)是广泛接受的分析耦合结构声(SA)系统动力响应的预报工具。由于随频率增加计算模型也增加导致基于单元的方法在实际中约束在低频段。一种替代方法是基于间接Trefftz法的基于波动方法(WBM)。但WBM的不足之处在于高计算效率只针对中度复杂的几何模型。为了利用两者的优势:FEM的广泛应用和WBM的高收敛特性,提出了混合FE-WB预报法(FEM-WBM)。基本原理是将FE模型中较大且几何简单的部分采用WBM代替。得到的耦合模型仍具有较少的自由度。简要描述了FEM、WWBM以及混合FEM-WBM的理论基础。最后将该方法应用于一个简单的结构声模型,理论分析结果与数值仿真计算结果吻合较好,该混合方法有潜力覆盖中频段。
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出版历程
  • 收稿日期:  2009-06-05
  • 录用日期:  2009-10-20
  • 修回日期:  2009-07-15
  • 刊出日期:  2009-05-25

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