Postdoc: ECS Postdoctoral Associate: Design and Simulation of Algorithms and Mechanisms for Precision Assembly

9705022 Goldberg, Kenneth Y.加州大学伯克利分校CISE实验CS博士后研究助理：精密装配算法和机制的设计与仿真（该奖项支持CES助理Karl Bohringer）。批量生产的商业产品小型化的进步需要精密装配的改进和创新。磁性存储系统、掌上电脑和可穿戴电脑或电信设备等产品通常需要亚微米级的组装操作。这些组件越来越多地采用微机电系统（MEMS）技术批量制造，通常在一次平行制造运行中产生数千个组件。与MEMS元件的高度自动化制造相比，当前的组装技术相当有限。传统的，顺序的拾取和放置组装是非常低效或不切实际的应用，因为组件的小尺寸和高精度的要求。相反，提出了新的平行自组装技术。活动表面（即，可以产生二维力矢量场的表面）允许在很少或没有传感器反馈的情况下对小部件进行精确定位，定向和分类。振动和流体搅拌可以产生并联装配的动力。机械顺应性，使用微倒角和锁存器，可以利用，以减少自由度的组件。详细的模型开发，以描述精密平行装配使用三种技术：机械振动，流体搅拌，和活动表面。分析了每种技术的动力响应，并用建模系统进行了仿真。进行了物理实验以证实我们的模型准确地反映了测量的行为。

9705022 Goldberg, Kenneth Y. University of California - Berkeley CISE Postdoctoral Research Associates in Experimental CS: Design and Simulation of Algorithms and Mechanisms for Precision Assembly (This award supports CES associate Karl Bohringer.) Progress in miniaturization of mass-produced commercial products requires improvements and innovation in precision assembly. Products such as magnetic storage systems, palmtop and wearable computers, or telecommunications devices often require submicron-level assembly operations. Increasingly, the components for such assemblies are batch-fabricated in MEMS (micro electro mechanical system) technology, often yielding thousands of components in one parallel fabrication run. In contrast to the highly automated fabrication of MEMS components, current assembly techniques are rather limited. Conventional, sequential pick-and-place assembly is extremely inefficient or impractical for such applications, because of the small size of the components and the high accuracy required. Instead, novel techniques are proposed for parallel self-assembly. Active surfaces (i.e., surfaces that can generate two-dimensional force vector fields) permit the precise positioning, orienting, and sorting of small parts with little or no sensor feedback. Vibration and fluidic agitation can generate a motive force for parallel assembly. Mechanical compliance, using micro-chamfers and latches, can be exploited to reduce the degrees of freedom of the components. Detailed models are developed to describe precision parallel assembly using three techniques: mechanical vibration, fluidic agitation, and active surfaces. The motive force response for each of these techniques is analyzed, and simulations with a modeling system are performed. Physical experiments are performed to confirm that our models accurately reflect measured behavior.