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首页> 外文会议>5th International Symposium on Test and Measurement (ISTM/2003) Vol.3 Jun 1-5, 2003 Shenzhen, China >Electro-Mechanical Characterization of Piezoelectric Stack Actuator
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Electro-Mechanical Characterization of Piezoelectric Stack Actuator

机译：压电叠片驱动器的机电特性

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摘要

The response of piezoelectric stack actuator under electric , mechanical , and electro-mechanical loading was investigated. The focus was to understand the behavior of piezoelectric materials under the combined electro-mechanical loading, and to determine fundamental properties important for design of actuator systems. The output displacement is enhanced with the increase of the mechanical preload and the maximum value was obtained at 6.6 MPa . But higher preload has the adverse effect on the stack. The hysteresis degree decreases when the preload greater than 4.6 MPa . Stiffness measurements indicate strong dependence on mechanical preload and applied voltage, and the values change by as much as 100% depending on the operating conditions.
机译：研究了压电叠层致动器在电，机械和机电负载下的响应。重点是了解压电材料在组合机电负载下的行为，并确定对于执行器系统设计重要的基本性能。输出位移随着机械预紧力的增加而增大，在6.6 MPa时达到最大值。但是较高的预加载会对堆栈产生不利影响。当预载大于4.6 MPa时，磁滞程度降低。刚度测量表明强烈依赖于机械预紧力和施加的电压，并且该值根据操作条件的变化幅度高达100％。

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