Energy harvesting via nonlinear energy sink for whole-spacecraft  

作　　者：ZHANG YeWei LU YanNan CHEN LiQun 

机构地区：[1]Faculty of Aerospace Engineerings,Shenyang Aerospace University,Shenyang 110136,China [2]School of Science,Harbin Institute of Technology,Shenzhen 518055,China

出　　处：《Science China(Technological Sciences)》2019年第9期1483-1491,共9页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11772205,11572182,51775541,11672188);the Scientific Research Fund of Liaoning Provincial Education Department(Grant Nos.L201703,L201737,L201762);the Liaoning Revitalization Talents Program(Grant No.XLYC1807172)

摘　　要：This paper presents nonlinear energy sink with giant magnetostrictive-piezoelectric material for energy harvesting of the wholespacecraft vibration reduction system. The whole-spacecraft vibration attenuation system can effectively reduce vibration and achieve self-tuning enhanced energy harvesting range. The open-circuit voltage generated at low frequency is affected by the magnetic field force, alternating magnetic field and relative displacement. In order to acquire a steady periodic solution of the energy harvesting system, a combination of the harmonic balance method and pseudo arc length continuation technique is used.The numerical outcomes are consistent with the analytical outcomes in a certain range, which also proves the accuracy and reliability of the results. The amplitude and voltage of the energy harvesting system are analyzed by parameters such as cubic stiffness, viscous damping, and external excitation acceleration. In addition, this paper provides a new idea for broadband energy harvesting.This paper presents nonlinear energy sink with giant magnetostrictive-piezoelectric material for energy harvesting of the wholespacecraft vibration reduction system. The whole-spacecraft vibration attenuation system can effectively reduce vibration and achieve self-tuning enhanced energy harvesting range. The open-circuit voltage generated at low frequency is affected by the magnetic field force, alternating magnetic field and relative displacement. In order to acquire a steady periodic solution of the energy harvesting system, a combination of the harmonic balance method and pseudo arc length continuation technique is used.The numerical outcomes are consistent with the analytical outcomes in a certain range, which also proves the accuracy and reliability of the results. The amplitude and voltage of the energy harvesting system are analyzed by parameters such as cubic stiffness, viscous damping, and external excitation acceleration. In addition, this paper provides a new idea for broadband energy harvesting.

关 键 词：nonlinear ENERGY SINK giant magnetostrictive-piezoelectric material pseudo arc length CONTINUATION technique ENERGY harvesting 

分 类 号：TH[机械工程]