Smart Fluid Actuators

智能流体执行器

• 批准号: 1000230653-2014
• 负责人: Plante, JeanSébastien
• 金额: $ 8.74万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Canada Research Chairs
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=662296
• 关键词: Smart; Fluid; Actuators

Smart fluids have the unique property of changing their physical properties upon application of electric or magnetic fields. In particular, MagnetoRheological Fluids (MRF) are now used in many commercial applications such as automotive shock absorbers to control vehicle motion in a semi-active way. This Canada Research Chair studies a fully-active actuator design paradigm using MRF for robotics and mechatronics systems. By modulating the torque of MRF clutches under continuous slippage, this new approach leads a new class of actuator systems that have the high bandwidths of direct-drive electromagnetic actuators while having the force density of hydraulic actuators. Further, MRF are fundamentally reliable since they have no direct metal-to-metal contacts that can lead to mechanical jams. Such characteristics enable new applications where high performance and lightweight is needed such as aircraft flight control. The Canada Research Chair work will develop enabling knowledge and technologies by: (1) understanding MRF aging and developing long lasting MR fluids, and (2) developing optimal robotic system architectures exploiting this new class of actuators.

智能流体具有在施加电场或磁场时改变其物理特性的独特特性。特别是，磁流变液（MRF）现在被用于许多商业应用，例如汽车减震器，以半主动方式控制车辆运动。这位加拿大研究主席研究了一种使用 MRF 用于机器人和机电一体化系统的全主动执行器设计范例。通过在连续打滑情况下调节 MRF 离合器的扭矩，这种新方法带来了新型执行器系统，该系统具有直接驱动电磁执行器的高带宽，同时具有液压执行器的力密度。此外，MRF 基本上是可靠的，因为它们没有可能导致机械堵塞的直接金属与金属接触。这些特性使得需要高性能和轻量化的新应用成为可能，例如飞机飞行控制。加拿大研究主席的工作将通过以下方式开发支持知识和技术：(1) 了解 MRF 老化并开发持久的 MR 流体，以及 (2) 开发利用此类新型执行器的最佳机器人系统架构。