CAREER: Nonlinear, Aeroelastic Rotating Disk Modeling and Mechanics for High Capacity, Removable Data Storage

主要研究者：Anthony Renshaw，哥伦比亚大学提案编号：CMS-9874965提案标题：职业生涯：非线性，气动弹性旋转磁盘建模和力学高容量，高速数据存储项目摘要：这个职业生涯的建议结合了一个研究计划的基础力学和气动耦合的柔性，高速旋转磁盘和一系列的课程开发活动的设计和多媒体教育。拟议的研究集中在三个基本的，未解决的问题，是至关重要的可移动数据存储设计：非线性旋转磁盘动力学，空气动力学引起的不稳定性，和软盘力学。 每个问题都将从理论和实验上进行攻击，以充分表征控制这些系统的非线性机制和气动激振力。 奇异摄动理论将被用来简化基本方程，同时以最小的复杂性捕捉基本的物理。 这项研究的结果将为下一代100 MB以上可移动数据存储的设计提供分析和数值指导，这是一个激烈竞争的市场，随着Zip驱动器的推出而成为焦点。 因为大多数现有的非线性、气动弹性、旋转盘力学的研究只给出了负面的结果（例如，分析预测与实验结果相矛盾的结果），目前的设计是保守的，主要基于试凑结果。 建议的研究将有助消除临时设计的做法，并产生更可靠，更高容量的设计。教育活动扩展了三个现有的项目：一个CAD/快速原型课程，使本科生能够开发潜在的解决方案，以进行教师的研究;进一步开发一个在线模块的注射成型设计;和一个研讨会课程的玩具设计。此外，一个项目，在网上玩具设计的一年级学生，重点是Tomagotchi/“虚拟”玩具和高年级选修技术驱动的玩具设计。 这些努力将有助于学生熟悉设计过程和工程洞察力和分析在真实的世界设计中所起的作用。

PI: Anthony Renshaw, Columbia UniversityProposal Number: CMS-9874965Proposal Title: CAREER: Nonlinear, Aeroelastic Rotating Disk Modeling and Mechanics For High Capacity, Removable Data Storage Project Abstract:This Career Proposal combines a research program on the fundamental mechanics and aerodynamic coupling of flexible, high-speed rotating disks and a series of curriculum development activities in design and multimedia education. The proposed research focuses on three fundamental, unsolved problems that are crucial to removable data storage design: nonlinear rotating disk dynamics, aerodynamically induced instability, and floppy disk mechanics. Each problem will be attacked theoretically and experimentally in order to fully characterize of the nonlinear mechanisms and aerodynamic excitation forces controlling these systems. Singular perturbation theory will be exploited to simplify the underlying equations while capturing the essential physics with minimal complexity. The results of this research will provide analytical and numerical guidance for the design of the next generation of 100+ MB removable data storage, a hotly contested market that was sharply brought into focus with the introduction of the Zip drive. Because most existing research on nonlinear, aeroelastic, rotating disk mechanics present only negative results (e.g., results where analytical predictions contradict experimental findings), current designs are conservative and are based primarily on cut-and-try results. The proposed research will help eliminate ad-hoc design practices and produce more reliable, higher capacity designs.The educational activities extend three existing projects: a CAD/rapid prototyping course to enable undergraduates to develop potential solutions to on-going faculty research; further development of an on-line module in design for injection molding; and a seminar course in toy design. In addition, a project in on-line toy design for first year students that focuses on Tomagotchi/"virtual" toys and an upper-class elective in technology driven toy design are proposed. These efforts will help acquaint students with the process of design and the role engineering insight and analysis plays in real world design.