SBIR Phase I: High Precision Coaxial Magnetic Gear

这项小企业创新研究（SBIR）第一阶段项目的更广泛影响/商业潜力是研究一种新型高性能机械变速箱的应用。电动机约占美国电力消耗的23%，约占制造业电力的63%。改进减速电机技术有助于实现节能。磁性齿轮在没有任何物理接触的情况下产生速度变化，不需要齿轮润滑，具有固有的过载保护，具有低声发射和低启动扭矩。由于其无接触扭矩生产，磁性齿轮具有长寿命的潜力，同时运行效率高。该项目将推动磁性齿轮箱的发展，具有许多潜在的应用。这项小型企业创新研究（SBIR）第一阶段项目探索了磁性齿轮箱在效率、热稳定性、扭矩密度以及成本方面的潜在权衡方面的贸易空间。基于多物理场的数值和解析建模协同设计技术将用于探索影响磁性齿轮效率的热和机械尺寸权衡，同时减轻磁体退磁。提出的设计将利用独特的层压磁体阵列与层压开槽调制器相结合。该项目将探讨在磁性和热设计的背景下，关于堆叠长度和机械挠度的设计权衡。该项目将展示磁性齿轮箱与同等尺寸的机械减速电机相比的效率和性能。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) Phase I project is to investigate applications of a new high-performance mechanical gearbox. Electric motors account for approximately 23 percent of electricity consumed in the United States and roughly 63 percent of manufacturing sector electricity. An improvement in geared motor technology can help realize energy savings. A magnetic gear creates speed change without any physical contact, requires no gear lubrication, has inherent overload protection, has low acoustic emissions and low starting torque. Due to its contact-free torque production, a magnetic gear has the potential for a long lifetime while operating at high efficiency. This project will advance the development of a magnetic gearbox, with many potential applications.This Small Business Innovation Research (SBIR) Phase I project explores the trade space of magnetic gearboxes with regard to efficiency, thermal stability, and torque density and the potential trade-offs with respect to cost. Multiphysics-based numerical and analytic modeling co-design techniques will be utilized to explore the thermal and mechanical sizing trade-offs impacting the efficiency of the magnetic gears while mitigating magnet demagnetization. The proposed designs will utilize a unique laminated magnet array combined with the laminated slotted modulator. The project will explore the design trade-offs with respect to stack length and mechanical deflection in the context of the magnetic and thermal design. The project will demonstrate the efficiency and performance capabilities of a magnetic gearbox compared with an equivalently sized mechanically geared motor.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.