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 .

气体润滑箔轴承用于小型高速机器，例如压缩机，冷却涡轮机，小型燃气轮机，排气涡轮增压器，真空泵以及纺织机和高速精密纺锤体。铝箔轴承设计的目的是一方面的较低升降速度，以在启动和停止期间低磨损，以及最高的稳定限制，这决定了轴承的最大旋转速度。该项目将调查研究假设，即箔轴承中形状的积极变化可在启动速度较高的速度和高升降速度的高速启动下，可以在高速度下效率高（可高昂的速度）。形状控制应通过应用或集成智能材料来实现。第二融资期的目的是对高负载能力状态和足够高系统阻尼状态之间有效切换的实验验证。