Analysis of Rotating Pressure Field due to Rotor-Stator Interaction

转子-定子相互作用引起的旋转压力场分析

• 批准号: 06650218
• 负责人: OHASHI Hideo
• 金额: $ 1.54万
• 依托单位: Kogakuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650218/
• 关键词: Turbo-machinery; Centrifugal pump; Rotor-stator interaction; Rotating pressure field; Fluid force; Resonance

The present study deals with pressure fluctuation due to rotor-stator interaction in centrifugal pumps, with special interests in the formation of rotating pressure fields inside the pumps.A single-stage pump with six-vaned centrifugal impeller in vaned diffuser was used as the test pump. The time-dependent local pressures at six measuring points were measured at the exit of the impeller when the number of guide vanes was one, five and eight.The measured data were processed first for noise reduction by ensemble averaging and then evaluated by Fourier analyzes. The analyzes indicated that the fundamental rotor-stator interaction for single guide vane is the basis of pressure fluctuation with arbitrary number of guides vanes. The simulation of pressure fields in the pump indicated the existence of rotating pressure fields with positive or negative propagating direction.

本文以一台单级离心泵为研究对象，研究了离心泵内动静干涉引起的压力脉动，重点研究了离心泵内旋转压力场的形成。在叶轮出口分别测量了1片、5片和8片导叶时6个测点的局部压力随时间的变化，并对测量数据进行了系综平均降噪处理和傅立叶分析。分析表明，单个导叶的基本动、静干扰是任意导叶数下压力脉动的基础。对泵内压力场的模拟表明，泵内存在正、负传播方向的旋转压力场。

项目成果

Ohashi Hideo: "Rotating Pressure Field" Proc., 4th Asian Conf.on Fluid Machinery. 12-17 (1993)

Ohashi Hideo：“旋转压力场”论文，第四届亚洲流体机械大会。

Ohashi,H.: "Case Study of Pump Failure Due to Rotor-Stator Interaction" Int.Jour.of Rotating Machinery. 1. 1-8 (1994)

Ohashi,H.：“转子-定子相互作用导致泵故障的案例研究”国际旋转机械杂志。

Ohashi Hideo: "Rotating Pressure Field" Proc. 4th Asian Conf. on Fluid Machinery. 12-17 (1993)

大桥秀夫：“旋转压力场”过程。

Ohashi Hideo: "Case Study of Pump Failure due to Rotor-Stator Interaction" Int.Jour.of Rotating Machinery. 1. 1-8 (1994)

Ohashi Hideo：“转子-定子相互作用导致泵故障的案例研究”《国际旋转机械杂志》。

Ohashi Hideo: "Rotating Pressure Field" Proc.,4th Asian Conf. on Fluid Machinery. 12-17 (1993)

大桥秀夫：“旋转压力场”议程，第四届亚洲会议。