Vibration Control of Nonlinear Thermovisoelastic Plates with Embedded PZT Sensors and Actuators

具有嵌入式 PZT 传感器和执行器的非线性热粘弹性板的振动控制

• 批准号: 9713453
• 负责人: Romesh Batra
• 金额: $ 21万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9713453&HistoricalAwards=false
• 关键词: Vibration; Control; Nonlinear; Thermovisoelastic; Plates

Robust nonlinear control and optimization strategies, and mathematical models for a materially and geometrically nonlinear thermoviscoelastic plate and a thermoviscopiezoelectric layer are developed. These are applied to determine the optimum number, shapes and locations of embedded sensors and actuators required to suppress undesired vibrations quickly and efficiently. These developments apply to instrument platforms, satellites and printed circuit boards where thermal, viscous, and piezo effects interact to determine the system response. The developments are validated by comparing the predictions with experimentals findings.

开发了稳健的非线性控制和优化策略，以及材料和几何非线性热粘弹性板和热粘压电层的数学模型。这些用于确定快速有效地抑制不需要的振动所需的嵌入式传感器和执行器的最佳数量、形状和位置。这些发展适用于仪器平台、卫星和印刷电路板，其中热效应、粘性效应和压电效应相互作用以确定系统响应。通过将预测与实验结果进行比较来验证这些进展。