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使用压电陶瓷（PZT）致动器研究由于转子 - 定子相互作用引起的旋转盘动态行为的可行性。

Feasibility of using PZT actuators to study the dynamic behavior of a rotating disk due to rotor-stator interaction.

作者信息

Presas Alexandre, Egusquiza Eduard, Valero Carme, Valentin David, Seidel Ulrich

机构信息

Centre de Diagnòstic Industrial I Fluidodinàmica, Universitat Politècnica de Catalunya, Av. Diagonal, 647. ETSEIB. Pab. D+1. 08028 Barcelona, Spain.

Voith Hydro Holding GmbH & Co. KG, Alexanderstrasse 11, 89522 Heidenheim, Germany.

出版信息

Sensors (Basel). 2014 Jul 7;14(7):11919-42. doi: 10.3390/s140711919.

DOI:10.3390/s140711919
PMID:25004151
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4168487/
Abstract

In this paper, PZT actuators are used to study the dynamic behavior of a rotating disk structure due to rotor-stator interaction excitation. The disk is studied with two different surrounding fluids-air and water. The study has been performed analytically and validated experimentally. For the theoretical analysis, the natural frequencies and the associated mode shapes of the rotating disk in air and water are obtained with the Kirchhoff-Love thin plate theory coupled with the interaction with the surrounding fluid. A model for the Rotor Stator Interaction that occurs in many rotating disk-like parts of turbomachinery such as compressors, hydraulic runners or alternators is presented. The dynamic behavior of the rotating disk due to this excitation is deduced. For the experimental analysis a test rig has been developed. It consists of a stainless steel disk (r = 198 mm and h = 8 mm) connected to a variable speed motor. Excitation and response are measured from the rotating system. For the rotating excitation four piezoelectric patches have been used. Calibrating the piezoelectric patches in amplitude and phase, different rotating excitation patterns are applied on the rotating disk in air and in water. Results show the feasibility of using PZT to control the response of the disk due to a rotor-stator interaction.

摘要

在本文中，使用压电陶瓷（PZT）致动器来研究由于转子 - 定子相互作用激励而产生的旋转盘结构的动态行为。对该盘在两种不同的周围流体——空气和水中的情况进行了研究。研究通过解析方法进行，并通过实验验证。对于理论分析，利用基尔霍夫 - 洛夫薄板理论并结合与周围流体的相互作用，得到了旋转盘在空气和水中的固有频率及相关振型。提出了一种在许多旋转盘状涡轮机械部件（如压缩机、水轮机转轮或交流发电机）中出现的转子 - 定子相互作用模型。推导了由于这种激励导致的旋转盘的动态行为。对于实验分析，开发了一个试验台。它由一个连接到变速电机的不锈钢盘（半径r = 198毫米，厚度h = 8毫米）组成。从旋转系统中测量激励和响应。对于旋转激励，使用了四个压电片。通过对压电片进行幅度和相位校准，在空气和水中的旋转盘上施加不同的旋转激励模式。结果表明了使用压电陶瓷控制由于转子 - 定子相互作用而产生的盘响应的可行性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/d5aa0808cdec/sensors-14-11919f12.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/192a7291fe11/sensors-14-11919f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/e3b46636ad50/sensors-14-11919f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/8d3060bf6963/sensors-14-11919f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/cd5f4c45e26a/sensors-14-11919f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/bb12b6a07ffb/sensors-14-11919f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/cee6f28dc13c/sensors-14-11919f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/0db6d9a396ce/sensors-14-11919f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/d5aa0808cdec/sensors-14-11919f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/fe23295e22e2/sensors-14-11919f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/0188118a4e4e/sensors-14-11919f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/f644e6ae1363/sensors-14-11919f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/6ae3f9205d06/sensors-14-11919f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/192a7291fe11/sensors-14-11919f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/e3b46636ad50/sensors-14-11919f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/8d3060bf6963/sensors-14-11919f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/cd5f4c45e26a/sensors-14-11919f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/bb12b6a07ffb/sensors-14-11919f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/cee6f28dc13c/sensors-14-11919f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/0db6d9a396ce/sensors-14-11919f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9a62/4168487/d5aa0808cdec/sensors-14-11919f12.jpg

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