| 1. | Mechanical performances of piezoelectric element and optimal control
压电类智能梁元的优化布局 |
| 2. | Static deformation of a beam with directional attached piezoelectric elements
用固支梁挠度曲线模拟高速路基本超车过程 |
| 3. | The simple impedance measurement system is consisted of piezoelectric element , an impedance analyzer , al beam and computer
测试系统由阻抗分析仪、计算机、压电陶瓷片、铝梁组成。 |
| 4. | The dynamic model of the section - varying intelligent piezoelectric beams with surface - bonded piezoelectric element is developed and the natural frequencies are analyzed
建立变截面智能压电梁的动态模型，分析表面粘贴压电元件的均质梁的固有频率。 |
| 5. | Piezoelectric elements were pasted on / under the cantilever beam where stress was the maximum or sub - maximum as actuators to control the vibration of the cantilever beam
在悬臂梁振动时应力最大或次最大处的上、下表面同位元配置压电片，作为抑制悬臂梁振动的致动器。 |
| 6. | It combines finite element method and the optimal design of piezoelectric elements together , and therefore can be applied to the vibration analysis and design of complex smart structures
改进后的方法将结构数值分析方法与压电元件的优化配置问题相结合，更加具有可操作性。 |
| 7. | Negative mode velocity feedback was adopted and the control voltage applied to each piezoelectric element acting as actuator was calculated to control the vibration of the beam
采用模态速度负反馈进行回馈控制，以此计算出各个作为致动器的压电片的控制电压，以抑制悬臂梁的振动。 |
| 8. | It is shown that the effects of the stiffness and inertia of the piezoelectric element that lead to higher first natural frequency on the natural frequencies of the beam are significant , and that of the elastic modulus of the bonding layer is small
研究表明，压电元件的刚度和惯量对梁的频率影响很大，变截面智能压电梁的一阶固有频率总是高于等截面梁的固有频率。 |
| 9. | Piezoelectric elements were bonded on the plate as actuators and the input voltage of each actuator was determined by the velocity of its position and volume velocity of the plate was made zero , through which the sound radiation from the plate could be controlled
在简支薄板表面粘贴压电片作为致动器，根据所处位置的速度确定输入控制电压，并使平板的体积速度为零，从而达到控制声辐射的目的。 |
| 10. | Also , for material showing pyroelectric properties , electric charges will appear under the effect of temperature . according to these proprieties , a piezoelectric element is an electromechanical transducer ( energy converter ) . at present , most of the piezoelectric material is film or ceramic cylinder
聚偏氟乙烯( pvdf )作为一种压电材料，具有很强的压电效应和热释电效应，也是目前在压电高分子材料中研究的较为系统、应用最广泛的高聚物。 |
