CAREER: Vibration and Stability of Spinning Disk-Spindle Systems and High-Speed Belt Drives

Robert G.帕克，俄亥俄州州立大学NSF提案9875635纺纱盘-主轴系统和高速皮带传动的振动和稳定性这个CAREER提案的研究方面解决了两个广泛工业用途：纺纱盘-主轴系统和高速蛇形皮带传动。 双主轴系统出现在许多工业应用中，包括磁盘驱动器、齿轮传动和减速器。伺服皮带传动是汽车行业为车辆附件提供动力的标准。 类似的设备用于纸张、磁带驱动器和纺织品处理系统。这两种系统都受到有害的动态响应，导致噪音，降低性能，并限制工作寿命。这些系统具有两个重要的特性：1）它们是陀螺系统，因此它们的动力学行为具有许多共同的特征; 2）它们将联合收割机离散元件与连续弹性体相结合。它们的混合离散-连续性质需要一种新的分析公式来揭示它们的经典陀螺结构，并允许应用强大的分析方法进行动态分析。目前正在与一家工业赞助商合作设计一个最先进的实验测试台，以验证和指导皮带研究。虽然直接的研究影响是推进这两个系统的动态建模和理解，工作同时旨在确定如何获得的知识适用于一般的陀螺continua.The教育活动包括：使用计算机模拟和多媒体显示在讲座中，课堂演示的物理系统，实地考察的部门研究实验室，并创新地使用网络的实验室教学。目标是物理现象的实际演示和传统课堂演示的独特结合。

Robert G. Parker, Ohio State UniversityNSF proposal 9875635Vibration and Stability of Spinning Disk-Spindle Systems and High-SpeedBelt DrivesThe research aspect of this CAREER proposal addresses vibration and stability problems in two mechanical systems in wide industrial use: spinning disk-spindle systems and high-speed serpentine belt drives. Disk-spindle systems occur in many industrial applications including disk drives, geared transmissions, and turbomachinery. Serpentine belt drives are the automotive industry standard for powering vehicle accessories. Similar devices are used in paper, tape drive, and textile processing systems. Both systems are subject to harmful dynamic response that causes noise, degrades performance, and limits operating life. These systems share two important properties: 1) they are gyroscopic systems and so their dynamic behaviors share many common features, and 2) they combine discrete elements with continuous, elastic bodies. Their hybrid discrete-continuous nature requires a novel analytical formulation to expose their classical gyroscopic structure and allow application of powerful analytical methods for dynamic analysis. A state-of-the-art experimental test stand is being designed in cooperation with an industrial sponsor to verify and guide the belt research. While the immediate research impact is to advance the dynamic modeling and understanding of these two systems, the work simultaneously aims to identify how the knowledge gained applies to general gyroscopic continua.The educational initiatives involve: use of computer simulations and multimedia display during lectures, classroom demonstrations of physical systems, field trips' to department research labs, and innovative use of the Web for lab instruction. The goal is a unique combination of practical demonstration of physical phenomena and traditional classroom presentation.