Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (12): 2227-2242.doi: https://doi.org/10.1007/s10483-023-3063-8

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Integrated device for multiscale series vibration reduction and energy harvesting

Jihou YANG, Weixing ZHANG, Xiaodong YANG   

  1. Beijing Key Laboratory of Nonlinear Vibrations and Strength of Mechanical Structures, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • Received:2023-08-18 Revised:2023-10-30 Published:2023-11-27
  • Contact: Xiaodong YANG, E-mail: jxdyang@163.com
  • Supported by:
    the National Natural Science Foundation of China (Nos. 11972050 and 12332001)

Abstract: A multi-degree-of-freedom device is proposed, which can achieve efficient vibration reduction as the main objective and energy harvesting as the secondary purpose. The device comprises a multiscale nonlinear vibration absorber (NVA) and piezoelectric components. Energy conversion and energy measurement methods are used to evaluate the device performance from multiple perspectives. Research has shown that this device can efficiently transfer transient energy from the main structure and convert a portion of transient energy into electrical energy. Main resonance and higher-order resonance are the main reasons for efficient energy transfer. The device can maintain high vibration reduction performance even when the excitation amplitude changes over a large range. Compared with the single structures with and without precompression, the multiscale NVA-piezoelectric device offers significant vibration reduction advantages. In addition, there are significant differences in the parameter settings of the two substructures for vibration reduction and energy harvesting.

Key words: integrated device, nonlinear vibration reduction, energy harvesting, transient vibration, energy principle

2010 MSC Number: 

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