Research on the influence of annular flow on critical speed of integrated motor pump rotor system

Xintian Qu; Jian Huang; Qiwei Zhang; Wei Zhou; Xiaobin Li

doi:10.1117/12.3039213

5 August 2024 Research on the influence of annular flow on critical speed of integrated motor pump rotor system

Xintian Qu, Jian Huang, Qiwei Zhang, Wei Zhou, Xiaobin Li

Proceedings Volume 13226, Third International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2024); 132264E (2024) https://doi.org/10.1117/12.3039213
Event: 3rd International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2024), 2024, Changsha, China

Abstract

The integrated motor pump, as the core unit of the electro static hydraulic actuator, directly determines the dynamic performance of the actuator. The background of aerospace applications demands high reliability, high power density, and strong environmental adaptability for elector-hydraulic actuators. However, in complex working conditions of high voltage and high speed, the characteristics of the integrated motor pump rotor system are easily affected by the surrounding annular flow, leading to instability and failure. To solve the problems above, an accurate mathematical model for annular flow is established. Based on the ANSYS Workbench simulation platform, the characteristics of the internal annular flow field of the actuator under different fluid viscosity, rotor speed, and circulation gap are analysed. The mechanism and influence of annular flow on the critical speed of the integrated motor pump wet rotor system are studied, and the resulting method provides theoretical support for the design of high-performance integrate motor pump.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xintian Qu, Jian Huang, Qiwei Zhang, Wei Zhou, and Xiaobin Li "Research on the influence of annular flow on critical speed of integrated motor pump rotor system", Proc. SPIE 13226, Third International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2024), 132264E (5 August 2024); https://doi.org/10.1117/12.3039213

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