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Investigation of the Vibration Transmission Characteristics of the Aero-Engine Casing System by Rotating Force Exciter

Author

Listed:
  • Jingming Zhao

    (China Academy of Launch Vehicle Technology, Beijing 100076, China
    State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China)

  • Xiaolong Hao

    (China Academy of Launch Vehicle Technology, Beijing 100076, China)

  • Kai Zhang

    (China Academy of Launch Vehicle Technology, Beijing 100076, China)

  • Yuanyuan Li

    (School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Guanghui Zhang

    (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China)

Abstract

This work aims to study the dynamic characteristics of an entire aero-engine casing by experiments using a new type of rotating exciter. New vibration sensor layout rules are proposed according to experimental results and vibration transmission characteristics. The vibration response of the aero-engine casing is carried out, and the vibration response of different casing measuring points is also studied. The finite element model of the engine casing’s structure is established to obtain the natural frequency of the whole aero-engine casing, which agrees well with the experimental measurement. We find that the vibration acceleration transmission value of the radial measuring point of bearing No. 1, but not the fan sensor, is more suitable for detecting the running state of the fan rotor. In addition, the sensor in the intermediate casing can detect the vibration of the high-pressure rotor. Bolt loosening of the flange has little effect on the vibration transmission characteristics of the casing. This work aims to provide experimental data of whole aero-engine vibration characteristics with a new rotating exciter for the vibration test, which can help optimize the location of the vibration transducer for the engine and the assembly technology design for the whole engine structure.

Suggested Citation

  • Jingming Zhao & Xiaolong Hao & Kai Zhang & Yuanyuan Li & Guanghui Zhang, 2023. "Investigation of the Vibration Transmission Characteristics of the Aero-Engine Casing System by Rotating Force Exciter," Energies, MDPI, vol. 16(4), pages 1-13, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1873-:d:1067727
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    References listed on IDEAS

    as
    1. Zhishuai Hu & Yongfeng Ren & Qingtian Meng & Pingping Yun & Chenzhi Fang & Yu Pan, 2023. "Improvement of Frequency Support for a DFIG Using a Virtual Synchronous Generator Strategy at Large Power Angles," Energies, MDPI, vol. 16(2), pages 1-20, January.
    2. Siyi Ding & Xiaohu Zheng, 2022. "Variation Analysis Considering the Partial Parallel Connection in Aero-Engine Rotor Assembly," Energies, MDPI, vol. 15(12), pages 1-23, June.
    3. Yuan Qiao & Xucheng Duan & Kaisheng Huang & Yizhou Song & Jianan Qian, 2018. "Scavenging Ports’ Optimal Design of a Two-Stroke Small Aeroengine Based on the Benson/Bradham Model," Energies, MDPI, vol. 11(10), pages 1-26, October.
    Full references (including those not matched with items on IDEAS)

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