High Performance Simulation Tools for Complex MEMS Resonator Design

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。这项工作的目标是开发精确和有效的计算方法，用于模拟微机电设备中的谐振阻尼，例如计划用于下一代传感阵列和通信电路。为了解决与这些问题相关的核心困难，研究人员将开发特殊的迭代方法来求解频域中的控制方程;他们还将研究时域分析方法的使用，该方法涉及窄带高斯脉冲与不连续Galerkin方法相结合的系统激励。该项目将进一步解决发展精确有效的无限域辐射边界条件以及提高效率的降阶模型的核心问题。理论工作将通过一系列基准实验得到补充。如果成功，所开发的方法将为器件设计人员提供模拟，理解和修改基于谐振的设计的能力，以便在进行昂贵的原型制造之前优化性能。这将导致更快速和更经济的设计周期。也希望这将使设计人员能够尽快创建下一代基于谐振的微机电系统。辐射边界条件和模型简化技术的工作也可以被用于各种各样的情况下，模拟无限域是必要的？如天气预报、声纳应用等。收集和发布的基准数据也将推动其他研究小组研究类似问题的工作。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The objective of this work is to develop accurate and efficient computational methods for the simulation of resonant damping in micro-electromechanical devices such as are planned for next generation sensing-arrays and communication circuitry. To address the central difficulty associated with such problems, the researchers will develop special iterative methods for solving the governing equations in the frequency domain; they also will examine the use of time domain analysis methods involving system excitation by narrow-band Gaussian pulses in combination with discontinuous Galerkin methods. The project will further address the central question of the development of accurate efficient infinite domain radiation boundary conditions as well as reduced order models for enhanced efficiency. The theoretical work will be complimented by a set of benchmark experiments.If successful, the methods developed will provide device designers the ability to simulate, understand, and modify resonant based designs to optimize performance before engaging in costly prototype fabrication. This will result in more rapid and cost effective design cycles. It is also hoped this will enable designers to create the next generation of resonant based micro-electromechanical systems sooner rather than later. The work on radiation boundary conditions and model reduction techniques can also be leveraged for use in a wide variety of situations where simulation of infinite domains is needed ? such as in weather prediction, sonar applications, etc. The benchmark data to be collected and disseminated will also advance the work of other research groups examining similar problems.