Free Vibration of Functionally Graded Material Beams in a Uniform Electric Field

摘要：

Free vibration of thermal post-buckled functionally graded material (FGM) beams in a uniform electric field subjected to both temperature rise and voltage is studied. Voltage has a great influence on the deformation of the beam, and Thermo-electric postbuckling equilibrium paths and characteristic curves of the first three natural frequencies versus the temperature, the electricity and the material gradient parameters are plotted. It is found that the three lowest frequencies of the pre-buckled beam decrease with an increase in the temperature, but those of a buckled beam increase monotonically with the temperature rise. The results also show that the tensional force produced in the piezoelectric layers by the voltage can efficiently increase the critical buckling temperature and the natural frequency.

关键词： Free vibration functionally graded material(FGM) uniform electric field thermo-electro-mechanical loadings thermal post-buckling shooting method natural frequency

作者: Shu Rong Yu Hou De Su Jian Ling Fan

作者单位: Department of Petrochemical, Lanzhou University of Technology, Lanzhou 730050, P R China Department of Petrochemical, Lanzhou University of Technology, Lanzhou 730050, P R China Gansu Lanpe

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)

会议地点: 香港

会议语种:英文

页码: 3-6

在线出版日期: 2011-12-27（万方平台首次上网日期，不代表论文的发表时间）