SBIR Phase II: Commutational Ramp Load Disk Drive Actuator

SBIR 第二阶段：换向斜坡负载磁盘驱动执行器

• 批准号: 1058569
• 负责人: Carlo Branca
• 金额: $ 50万
• 依托单位: Bluewater Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-03-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1058569&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Commutational; Ramp

This Small Business Innovation Research (SBIR) Phase II project will design, build, test, and validate a fully operational prototype disk drive incorporating a commutational ramp load actuator (CRLA). The CRLA is a unique and transformative actuator for disk drives that provides significant improvements over existing actuator technology by increasing performance and reducing cost. The research objectives consist of a systematic distributed parameter design for the CRLA components, quantification of intrinsic parameters and performance characteristics, design and synthesis of a robust trajectory and control algorithm to fulfill the ramp load/unload requirements, and verification of repeatability and reliability of the ramp load/unload process. The CRLA design requires travel through a magnetic transition zone which presents an input singularity at a location on the ramp within the actuator sweep angle resulting from a zero torque factor. To promote travel on the ramp and through the region near the input singularity point on the ramp, a robust closed-loop control algorithm will be developed that will provide failsafe ramp load/unload operation through the transition zone. It is anticipated that the research will lead to a technically sound and robust CRLA prototype actuator which will provide significant performance improvements and cost savings. The broader impact/commercial potential of this project is immediate and long-term. The immediate commercial potential is the specific application of the technology to the current 550 million units per year disk drive market for computers, servers, data backup systems, communication technologies, and many consumer products such as digital video recorders. The CRLA technology is expected to provide cost savings of $0.17 to $0.47 on magnet, coil, and latch materials for each disk drive. Additional cost savings are realized through a reduction in product liability, warranty, and return costs. This technology will provide a direct benefit to society via manufacture of a consumer product that is of a lower cost and higher performance. This innovation will enhance scientific and technological understanding of devices that require ?control through singular regions,? with potential application in diesel engines and various military defense and security technologies. Additional broader impacts include: (a) realistic engineering training for students; (b) improving local economy by creating manufacturing jobs; (c) involvement of undergraduate students and preparation of project modules to enhance undergraduate curriculum; (d) collaboration with practicing engineers; and (e) immediate transfer of technology to disk drive industry.

这个小型企业创新研究（SBIR）第二阶段项目将设计，建造，测试和验证一个完全可操作的原型磁盘驱动器，其中包括一个换向斜坡负载执行器（CRLA）。CRLA是磁盘驱动器的独特和变革性致动器，通过提高性能和降低成本，对现有致动器技术进行了重大改进。研究目标包括系统的分布参数设计的CRLA组件，量化的内在参数和性能特点，设计和合成的一个强大的轨迹和控制算法，以满足斜坡加载/卸载的要求，并验证的重复性和可靠性的斜坡加载/卸载过程。CRLA设计要求通过磁过渡区，该磁过渡区在斜坡上的位置处呈现输入奇异性，该位置在致动器扫掠角内，由零扭矩因子引起。为了促进在坡道上以及通过坡道上输入奇异点附近区域的行驶，将开发一种鲁棒闭环控制算法，该算法将通过过渡区提供故障安全坡道装载/卸载操作。预计这项研究将导致一个技术上健全和强大的CRLA原型驱动器，将提供显着的性能改进和成本节约。该项目的更广泛影响/商业潜力是即时和长期的。 直接的商业潜力是将该技术具体应用于目前每年5.5亿台的磁盘驱动器市场，用于计算机、服务器、数据备份系统、通信技术和许多消费产品，如数字录像机。CRLA技术预计将为每个磁盘驱动器在磁体、线圈和闩锁材料上节省0.17至0.47美元的成本。通过降低产品责任、保修和退货成本，还可以实现额外的成本节约。这项技术将通过制造成本更低、性能更高的消费品为社会带来直接利益。这一创新将提高对设备的科学和技术理解，需要？通过奇异区域控制，？其在柴油发动机和各种军事防御和安全技术中具有潜在的应用。其他更广泛的影响包括：（a）对学生进行切合实际的工程培训;（B）通过创造制造业就业机会改善地方经济;（c）大学生参与并编制项目单元，以加强大学课程;（d）与执业工程师合作;（e）立即向磁盘驱动器行业转让技术。