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、小型燃气轮机、废气涡轮增压器、真空泵，以及纺织机和高速精密主轴的轴承。箔片轴承设计的目标一方面是低提离速度，以减少启动和停止期间的磨损，另一方面是尽可能高的稳定性极限，这决定了轴承的最大转速。该项目将研究研究假设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（具有相关的低升力速度）和足够高的系统阻尼状态之间切换，以实现高速稳定运行速度。形状控制应该通过智能材料的应用或集成来实现。第二期资助的目的是实验验证高负载能力状态和足够高系统阻尼状态之间的有效切换。