Shape variable foil bearings

形状可变箔片轴承

• 批准号: 280508116
• 负责人: Professor Dr.-Ing. Michael Sinapius
• 金额: --
• 依托单位: Institut für Mechanik und Adaptronik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/280508116?language=en
• 关键词: Shape; variable; foil; bearings

Gas-lubricated foil bearings are used for small high-speed machines like compressors, cooling turbines, small gas turbines, exhaust turbochargers, vacuum pumps, as well as bearing for textile machines and high speed precision spindles. The aim of the design of foil bearings are low lift-off speeds on the one hand side for low wear during start-up and stop, and the highest possible limit of stability which determines the maximum rotational speed for the bearing.The project will investigate the research hypothesis that an active variation of the shape in foil bearings enables the switch between a state of high load capacity during start-up (with related low lift-off speed) and a state of sufficient high system damping for a stable operation at high speeds. The shape control should be realizable through the application or integration of smart materials.The aim of the second funding period is the experimental verification of the effective switch between a state of high load capacity and a state of sufficient high system damping .

气体润滑箔片轴承用于小型高速机器，如压缩机，冷却涡轮机，小型燃气涡轮机，排气涡轮增压器，真空泵，以及纺织机和高速精密主轴的轴承。箔片轴承的设计目标是一方面在启动和停止期间实现低磨损的低提升速度，以及确定轴承最大转速的最高可能稳定极限。该项目将调查研究假设，即箔片轴承形状的主动变化能够在启动期间的高负载能力状态之间切换（具有相关的低提升速度）和足够高的系统阻尼状态，以用于在高速下的稳定操作。第二个资助期的目的是通过实验验证在高负载能力状态和足够高的系统阻尼状态之间的有效切换。