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异形腔体压电声衬声学性能

陈鹏 吕海峰 安君 张晓光 王普浩 吕传茂

陈鹏, 吕海峰, 安君, 张晓光, 王普浩, 吕传茂. 异形腔体压电声衬声学性能[J]. 航空动力学报, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.021
引用本文: 陈鹏, 吕海峰, 安君, 张晓光, 王普浩, 吕传茂. 异形腔体压电声衬声学性能[J]. 航空动力学报, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.021
Acoustic performance of piezoelectric acoustic liners with heteromorphic cavity[J]. Journal of Aerospace Power, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.021
Citation: Acoustic performance of piezoelectric acoustic liners with heteromorphic cavity[J]. Journal of Aerospace Power, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.021

异形腔体压电声衬声学性能

doi: 10.13224/j.cnki.jasp.2018.12.021
基金项目: 国家自然科学基金(51305409); 山西省青年科技研究基金(2013021020-2);山西省高等学校优秀青年学科带头人资助项目

Acoustic performance of piezoelectric acoustic liners with heteromorphic cavity

  • 摘要: 为提高压电声衬对低频噪声的抑制范围,对声衬腔体进行结构优化。利用平面波理论构建了两种曲线管道的声学物理模型,并分别建立了两种模型的传递矩阵,以此作为异形腔体亥姆霍兹共振器传递损失计算的理论依据,并通过仿真验证其正确性。结合压电振子的形变对声衬进行有限元仿真分析,结果表明:在压电振子施加500V驱动电压时,两种声衬频率偏移量分别为115Hz和120Hz。与圆柱形腔体声衬进行对比结果表明:在相同腔体厚度范围内,由曲率越大的曲线所生成的腔体,在相同驱动电压条件下,频率变化率越高,这为今后对声衬腔体结构优化提供一种有效的依据。

     

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出版历程
  • 收稿日期:  2017-10-30
  • 刊出日期:  2018-12-28

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