Piezoelectric thermoelastic dissipation research of piezoelectric harvester under different vibration
Piezoelectric materials are widely used to form piezoelectric energy harvesters.Also,the thermoelastic dissipation always influences the energy harvesting efficiency,during the energy harvest process.Therefore,in this paper,we discuss the effect of thermoelastic dissipation on the piezoelectric harvester through numerical calculation,simulation and experiment.The piezoelectric thermoelastic coupling governing equations under different vibration are derived,which are based on the Euler-Bernoulli beam theory,thermal conduction model and piezoelectric field model.Then,the structure frequency shift and thermoelastic damping are studied via numerical calculation and simulation.Meanwhile,we show the influence of the temperature field on the piezoelectric structure under different vibration modes.Furth more,we research the variations of piezoelectric structure thermoelastic dissipation characteristics under different structure geometry sizes.Based on these analyses,the effect of piezoelectric thermoelastic dissipation on the piezoelectric harvester is researched
Yuting Liu Jiahao Deng Yong Ye Zhuo Hou Zuodong Duan Sha Xu
School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China;Science and School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China;Science and School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China;Science and
国际会议
上海
英文
1-8
2018-10-12（万方平台首次上网日期，不代表论文的发表时间）