Optimization of vibro-noise in the pipeline system of centrifugal pump

Optimization of vibro-noise in the pipeline system of centrifugal pump
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离心泵管路系统振动噪声优化

DOI:
10.1109/itoec53115.2022.9734641
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发表时间:
2022-03
期刊:
2022 IEEE 6th Information Technology and Mechatronics Engineering Conference (ITOEC)
影响因子:
--
通讯作者:
Kaizhuo Ji
Kaizhuo Ji
中科院分区:
其他
文献类型:
--
作者:
Zhengyu Cui;Jianli Wang;Kaizhuo Ji

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对国产离心泵内部非定常流激振动噪声进行了数值研究。非定常流场采用剪应力输运$\mathrm{k}-\omega$模型求解。计算结果被用来提取内壁上的压力脉动,这些脉动被馈送到结构分析以激发振动噪声。通过实验得到了离心泵内部噪声的声压级,验证了数值方法的有效性。本文对多孔板结构进行了优化设计,以降低流体压力波动引起的振动噪声。通过数值模拟发现,在所研究的工况下,穿孔板对管道的振动噪声有显著的抑制效果。
The vibro-noise of a homemade centrifugal pump excited by the internal unsteady flow are numerically investigated. The unsteady flow field is solved by using the shear stress transport $\mathrm{k}-\omega$ model. The computed results are adopted to extract the pressure fluctuations on the inner walls which are fed to the structural analysis to excite the vibro-noise. The sound pressure level (SPL) of the internal noise of the centrifugal pump is experimentally obtained, confirming the effectiveness of the numerical method. In this paper, the structure of perforated plate is designed to optimize the vibro-noise caused by the pressure fluctuations of the fluid. It is found that the perforated plate has a significant effect on suppressing the vibro-noise of the pipe under the studied conditions by numerical simulation.
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