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Dynamic Characteristics of a Deployable Large Support Arm with Uncertain Parameters

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Abstract

The dynamic characteristics of a large deployable support arm with uncertain parameters are studied. Due to the processing, manufacturing and other reasons, uncertainty is common in the actual structure, especially for the main bearing structure of high-precision imaging, the uncertainty becomes an important influence that cannot be ignored. In this paper, the modified perturbation method is used to study the change in the structural dynamic characteristics when the elastic modulus of the support arm has a small parameter variation, and the Monte Carlo simulation is used to verify the comparison. The natural vibration characteristics of the support arm structure are measured from the perspective of the statistical characteristics of probability.

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Acknowledgements

The research work of this paper is supported by the National Natural Science Foundation of China (No. 11772084).

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Authors and Affiliations

  1. Beijing Institute of Spacecraft System Engineering, Beijing, 100094, China

    Shaohui Zhang, Wei Sun & Wenbo Luo

  2. State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116023, China

    Fan Liu, Yaozong Pan & Yan Zhao

Authors
  1. Shaohui Zhang
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  2. Fan Liu
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  3. Wei Sun
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  4. Yaozong Pan
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  5. Yan Zhao
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  6. Wenbo Luo
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Correspondence to Shaohui Zhang.

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Zhang, S., Liu, F., Sun, W. et al. Dynamic Characteristics of a Deployable Large Support Arm with Uncertain Parameters. Adv. Astronaut. Sci. Technol. 5, 357–362 (2022). https://doi.org/10.1007/s42423-022-00123-7

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  • DOI: https://doi.org/10.1007/s42423-022-00123-7

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