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Dynamic balancing of multispeed multidisk rotor

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Abstract

This study proposes a method to balance the multidisk rotor systems of aeroengines. A double screening-based correction plane selection method with constraints, such as balancing effect and trim weight, is proposed in this work. The first screening takes the balance effect of the rotor system as the objective function, and the scheme of the correction planes with the better balance effect is selected in the first screening. The second screening aims to screen the trim weight that satisfies the constraints. The scheme of the optimal trim plane is obtained with the balancing effect coefficients of the unit trim weight. The double optimization method is utilized for the multidisk rotor in the simulation and experiment. Results show that the proposed method can suppress the vibration of multidisk rotors working at high speeds.

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Abbreviations

K, k :

Number of correction planes

M :

Number of measuring points

N :

Number of rotation speeds

αi :

Evaluation coefficient of the balancing effect

αl :

Lower limit of limiting the balancing effect

βi :

Evaluation coefficient of the balancing effect under the unit correction weight

BEC :

Balancing effect coefficient after the first screening

O, o :

Original vibration

R, r :

Residual vibration

z :

Number of the different plane selection schemes

U,u :

Correction weights

ub :

Upper limit of limiting the correction weight

m 1 :

Rotor mass

X o :

Initial amplitude

n :

Rotor spin speed

r i :

Counterweight installation radius

f :

Sum of squares of residual vibrations

m :

First optimization loop times

A :

Matrix of the influence coefficient

a :

Influence coefficient

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (51975037).

Author information

Authors and Affiliations

  1. School of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China

    Yulin Guo & Jianfei Yao

  2. Beijing Key Laboratory of High-end Mechanical Equipment Health Monitoring and Self-Recovery, Beijing University of Chemical Technology, Beijing, 100029, China

    Yulin Guo, Jianfei Yao & Yan Li

  3. Key Lab of Engine Health Monitoring-Control and Networking of Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China

    Jianfei Yao & Yan Li

Authors
  1. Yulin Guo
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  2. Jianfei Yao
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  3. Yan Li
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Corresponding author

Correspondence to Jianfei Yao.

Additional information

Yulin Guo is a graduate student of Beijing University of Chemical Technology. His research interests are rotor dynamics and the vibration characteristics of aeroengine rotor systems.

Jianfei Yao obtained the Ph.D. in Power Engineering and Engineering Thermophysics at Beijing University of Chemical Technology. He is currently a Professor at Beijing Key Laboratory of High-end Mechanical Equipment Health Monitoring and Self-Recovery, Beijing University of Chemical Technology, China. His research interests are in the field of rotor dynamics, vibration control, fault diagnostics for rotating machinery, smart materials and structures, and mechanical metamaterials. He has authored 50 publications.

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Guo, Y., Yao, J. & Li, Y. Dynamic balancing of multispeed multidisk rotor. J Mech Sci Technol 37, 2263–2274 (2023). https://doi.org/10.1007/s12206-023-0403-z

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  • DOI: https://doi.org/10.1007/s12206-023-0403-z

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