TY - GEN
T1 - Enhanced Modeling Method of Asymmetric Nonlinear Magnetic Force for Multi-stable Energy Harvesters
AU - Zhang, Ying
AU - Cao, Junyi
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2022
Y1 - 2022
N2 - The nonlinear multi-stable piezoelectric energy harvesters have attracted a great quantity attention for the performance enhancement. Due to the fact that the nonlinear restoring force plays an important role in dynamic behavior, it is necessary to model the nonlinear restoring force accurately. However, previous models mainly focus on the symmetric system, but the influencing mechanism of widely used asymmetric systems has not been discussed. Therefore, this paper presents an enhanced modelling method of nonlinear restoring force for asymmetric multi-stable energy harvesters. The magnetic charge method is applied to deduce the theoretical expression of magnetic force between the tip magnet and the rotatable magnets. Then, numerical results of magnetic force have verified the effectiveness of proposed method for asymmetric multi-stable energy harvesters. The influence of different structural position parameters of rotatable magnets on nonlinear magnetic force is analyzed. Moreover, the dynamic responses of asymmetric multi-stable energy harvesters with different potential well shapes are compared by directly changing structural parameters.
AB - The nonlinear multi-stable piezoelectric energy harvesters have attracted a great quantity attention for the performance enhancement. Due to the fact that the nonlinear restoring force plays an important role in dynamic behavior, it is necessary to model the nonlinear restoring force accurately. However, previous models mainly focus on the symmetric system, but the influencing mechanism of widely used asymmetric systems has not been discussed. Therefore, this paper presents an enhanced modelling method of nonlinear restoring force for asymmetric multi-stable energy harvesters. The magnetic charge method is applied to deduce the theoretical expression of magnetic force between the tip magnet and the rotatable magnets. Then, numerical results of magnetic force have verified the effectiveness of proposed method for asymmetric multi-stable energy harvesters. The influence of different structural position parameters of rotatable magnets on nonlinear magnetic force is analyzed. Moreover, the dynamic responses of asymmetric multi-stable energy harvesters with different potential well shapes are compared by directly changing structural parameters.
KW - Asymmetry
KW - Multi-stable energy harvester
KW - Nonlinear restoring force
KW - Theoretical modelling
UR - https://www.scopus.com/pages/publications/85116450422
U2 - 10.1007/978-981-16-5912-6_41
DO - 10.1007/978-981-16-5912-6_41
M3 - 会议稿件
AN - SCOPUS:85116450422
SN - 9789811659119
T3 - Lecture Notes in Electrical Engineering
SP - 554
EP - 566
BT - Advances in Applied Nonlinear Dynamics, Vibration and Control - 2021 - The proceedings of 2021 International Conference on Applied Nonlinear Dynamics, Vibration and Control, ICANDVC 2021
A2 - Jing, Xingjian
A2 - Ding, Hu
A2 - Wang, Jiqiang
PB - Springer Science and Business Media Deutschland GmbH
T2 - International Conference on Applied Nonlinear Dynamics, Vibration and Control, ICANDVC 2021
Y2 - 23 August 2021 through 25 August 2021
ER -