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Purpose <p>To quantitatively evaluate the vibration energy distribution of each structure in the full reaction wheel system, a micro-vibration contribution analysis considering flexible housing is carried out.</p> Methods <p>The analysis process includes the treatment of vibration sources and transfer paths. In the source analysis, the harmonic parameters are extracted by the improved binning algorithm based on the Akaike information criterion- singular value decomposition (AIC-SVD). For the paths, an amplitude amplification factor is proposed to express the fluctuation of vibration passing through the rotor-bearing and the housing. By separating the disturbance amplitude and fitting polynomials, the vibration sources, rotor-bearing, and housing are treated as independent components, and the contributions of each component are calculated.</p> Conclusions <p>The results indicate that the amplified vibration energy on the transmission path is much greater than that of harmonic sources. Especially in terms of axial force and moment, the vibration of the housing reaches 57.78% and 64.24% of the total vibration energy.</p>

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Full-System Micro-Vibration Contribution Analysis of Reaction Wheel Considering Flexible Housing

  • 期刊论文

  • 发表日期：

    2025年4月8日

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  • Yan Shen,
  • Xianbo Yin,
  • Yang Xu,
  • Zhiyi Zhang

摘要

Purpose

To quantitatively evaluate the vibration energy distribution of each structure in the full reaction wheel system, a micro-vibration contribution analysis considering flexible housing is carried out.

Methods

The analysis process includes the treatment of vibration sources and transfer paths. In the source analysis, the harmonic parameters are extracted by the improved binning algorithm based on the Akaike information criterion- singular value decomposition (AIC-SVD). For the paths, an amplitude amplification factor is proposed to express the fluctuation of vibration passing through the rotor-bearing and the housing. By separating the disturbance amplitude and fitting polynomials, the vibration sources, rotor-bearing, and housing are treated as independent components, and the contributions of each component are calculated.

Conclusions

The results indicate that the amplified vibration energy on the transmission path is much greater than that of harmonic sources. Especially in terms of axial force and moment, the vibration of the housing reaches 57.78% and 64.24% of the total vibration energy.