Dynamics of Capillary Force Actuators

毛细管力执行器的动力学

• 批准号: 0801908
• 负责人: Carl Knospe
• 金额: $ 33万
• 依托单位: University of Virginia Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-05-01 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0801908&HistoricalAwards=false
• 关键词: Dynamics; Capillary; Force; Actuators

Dynamics of Capillary Force ActuatorsAbstractThe objective of this research is to investigate a fundamentally new and innovative technology for generating actuation forces in microelectromechanical systems. The approach is to exploit the change in capillary pressure of a liquid bridge when electrowetting occurs. Capillary force actuators are capable of delivering ten to one hundred times greater force than currently-favored technologies and have the potential to revolutionize the development of microsystems. In this research, instrumented capillary force actuators will be microfabricated, experimentally characterized, and compared to electrohydrodynamic models. Intellectual merit: This research will advance capillary force actuation technology along several fronts essential to its adoption in microelectromechanical applications. The understanding gained will result in accurate models of capillary force actuators that relate dynamic behavior to design choices. The experimental results obtained will confirm the dynamic models and provide demonstration of the potential of this technology for microelectromechanical systems. Finally, the fabrication and testing of several prototype devices will provide knowledge critical to the development of practical, manufacturable actuators. Broader impacts: The effort will provide both undergraduate and graduate students a highly interdisciplinary research opportunity, ideal for the development of broad fundamental knowledge and practical know-how. The undergraduate students will produce podcasts for outreach to underrepresented high school students that bring the research experience to life. Through the involvement of undergraduates from underrepresented groups, this effort will directly impact the training of a diverse engineering workforce. The effort will enable the development of new microdevices that were previously unachievable and result in products that benefit society.

毛细管力致动器的动力学摘要这项研究的目的是研究一种在微机电系统中产生致动力的全新创新技术。该方法是利用电润湿发生时液桥毛细管压力的变化。毛细管力执行器能够提供比目前流行的技术大十到一百倍的力，并且有可能彻底改变微系统的开发。在这项研究中，仪器化毛细管力致动器将被微加工、实验表征，并与电流体动力学模型进行比较。 智力价值：这项研究将在几个方面推进毛细管力驱动技术，这对其在微机电应用中的采用至关重要。所获得的理解将产生毛细力执行器的精确模型，将动态行为与设计选择联系起来。获得的实验结果将证实动态模型并证明该技术在微机电系统中的潜力。最后，几个原型设备的制造和测试将为开发实用的、可制造的执行器提供关键的知识。 更广泛的影响：这项工作将为本科生和研究生提供高度跨学科的研究机会，是发展广泛的基础知识和实践技能的理想选择。本科生将制作播客，向代表性不足的高中生进行宣传，将研究经验变为现实。通过来自代表性不足群体的本科生的参与，这项工作将直接影响多元化工程人员的培训。这项努力将有助于开发以前无法实现的新型微型设备，并产生造福社会的产品。