摘要
对于存在力场、电场和热场相互耦合的压电层合结构,建立合理的热机电耦合数学模型,是进行结构振动主动控制、形状控制和优化设计的基础。通过假设适当的位移、电势和温度分布模型,根据Hamilton原理或虚功原理导出系统动(静)力学模型是一种有效的建模方法。在推导压电层合结构热机电耦合基本方程的基础上,根据位移、电势和温度分布模型的不同假设,对各种近似力学模型进行评述,指出各种模型的优缺点。最后简单展望该领域今后的发展方向。
Establishing a reasonable thermo-electro-mechanically coupled model is important for active control, shape control and optimization of piezoelectric laminate structures. It is efficient that one establishes the model in virtue of the Hamilton principle and virtual work principle with pertinently assumed distributions of displacement, electric potential and temperature in the structures. In this paper, the thertoo-electro-mechanically coupled governing equations for the structures were given. Several models were established due to different assumptions of the distributions of displacement, electric potential and temperature. These models were evaluated. Finally, the future advances in this field were predicted.
出处
《噪声与振动控制》
CSCD
北大核心
2008年第5期11-20,共10页
Noise and Vibration Control
关键词
振动与波
压电材料
智能结构
热机电耦合
振动控制
形状控制
vibration and wave
piezoelectric material
smart structures
thermo-electro- mechanically coupled
vibration control
shape control
