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

Robert G. Parker，俄亥俄州立大学sf提案9875635纺盘-主轴系统和高速带传动的振动和稳定性这个CAREER提案的研究方面解决了两种广泛工业应用的机械系统的振动和稳定性问题：纺盘-主轴系统和高速蛇形带传动。盘式主轴系统出现在许多工业应用中，包括磁盘驱动器、齿轮传动和涡轮机械。蛇形皮带传动是汽车工业标准的动力车辆配件。类似的装置也用于造纸、磁带驱动和纺织加工系统。这两种系统都受到有害的动态响应的影响，会产生噪音，降低性能，并限制使用寿命。这些系统有两个重要的特性：1)它们是陀螺仪系统，因此它们的动态行为有许多共同的特征；2)它们将离散元素与连续的弹性体结合在一起。它们的混合离散连续性质需要一种新的分析公式来揭示其经典的陀螺仪结构，并允许应用强大的分析方法进行动态分析。一个最先进的实验试验台正在与一个工业赞助商合作设计，以验证和指导皮带的研究。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，但这项工作同时旨在确定所获得的知识如何应用于一般陀螺仪连续体。教育活动包括：在课堂上使用计算机模拟和多媒体显示，物理系统的课堂演示，到系研究实验室的实地考察，以及创新地使用网络进行实验室教学。目标是将物理现象的实际演示与传统的课堂演示相结合。

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.