Applied Mathematics and Mechanics (English Edition) ›› 2024, Vol. 45 ›› Issue (8): 1295-1314.doi: https://doi.org/10.1007/s10483-024-3133-8

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On the role of sliding friction effect in nonlinear tri-hybrid vibration-based energy harvesting

Jiamei WANG1, Siukai LAI1,2,*(), Chen WANG3, Yiting ZHANG1, Zhaolin CHEN1,4   

  1. 1 Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China
    2 The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, Guangdong Province, China
    3 Hebei Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures, Yanshan University, Qinghuangdao 066000, Hebei Province, China
    4 School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2024-03-12 Online:2024-08-03 Published:2024-07-31
  • Contact: Siukai LAI E-mail:sk.lai@polyu.edu.hk
  • Supported by:
    the National Natural Science Foundation of China(12372024);the National Natural Science Foundation of China(12002300);the Natural Science Foundation of Hebei Province of China(A2021203013);Project supported by the National Natural Science Foundation of China (Nos. 12372024 and 12002300) and the Natural Science Foundation of Hebei Province of China (No. A2021203013)

Abstract:

This work aims to develop an experimental investigation into the effectiveness of the sliding-mode approach for hybrid vibration-based energy harvesting. A proposed sliding-mode triboelectric-electromagnetic-piezoelectric energy harvesting model involves a cantilever beam with a tip mass exposed to magnetic and frictional forces. The experimental findings indicate that the system can achieve its peak inter-well oscillation output within a low-frequency range of 4 Hz-6 Hz. Friction has a lesser impact on the open-circuit voltage output at an excitation acceleration of $1.5g$ compared with $1g$. The distribution of tri-stability changes with the presence of friction. This model provides a deeper understanding of the influence of the dry friction coefficient (0.2–0.5) on the interactive behaviors of different generator units.

Key words: sliding mode, tri-hybrid energy harvesting, friction, nonlinear behavior

2010 MSC Number: 

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