New Magnetorheological Actuator with Embedded Hall-Effect Sensor for Hysteresis Elimination

带有嵌入式霍尔效应传感器的新型磁流变执行器，可消除磁滞

• 批准号: 0969576
• 负责人: Hakan Gurocak
• 金额: $ 11.99万
• 依托单位: Washington State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0969576&HistoricalAwards=false
• 关键词: New; Magnetorheological; Actuator; Embedded; Hall

The research objective of this award is to investigate a new magnetorheological (MR) brake actuator with an embedded Hall-effect sensor in its flux path to eliminate hysteresis using closed-loop control. The new actuator will also incorporate a permanent magnet, coil and serpentine flux path to reduce the overall size to improve its torque-to-volume ratio. MR-brake actuators have been implemented in many applications including civil engineering, haptics, exercise equipment, automobile suspensions and tactile displays. However, their hysteretic behavior makes control challenging. The research will result in a systematic methodology to identify the dominant parameters of the actuator and study their complex interactions. The research approach progresses from parameterized finite element simulations to analysis of the data with design of experimental techniques and to verifications with a prototype actuator.If successful, the results of this research will transform the state-of-the-art MR-brake actuator technology into a smart actuator technology. Example applications include automotive industry, aerospace, robotics, civil engineering, prosthetics, haptics, vibration control, game industry and rehabilitation. The results will be disseminated to allow the creation of commercial devices. Graduate and undergraduate engineering students will benefit through classroom instruction and involvement in the research. A new workshop on smart fluids and actuators will be organized for the underrepresented middle and high school students during the annual MESA events on campus. The workshop will allow children to conduct experiments with magnets, coils and MR fluid and emphasize how research leads to development of new knowledge and products.

该奖项的研究目标是研究一种新的磁流变（MR）制动执行器，在其磁通路径中嵌入霍尔效应传感器，以消除滞后，使用闭环控制。新的致动器还将采用永磁体，线圈和蛇形磁通路径，以减少整体尺寸，提高其扭矩体积比。 MR制动执行器已经在许多应用中实现，包括土木工程、触觉、锻炼设备、汽车悬架和触觉显示器。 然而，它们的滞后行为使得控制具有挑战性。该研究将导致一个系统的方法，以确定致动器的主导参数，并研究其复杂的相互作用。 研究方法从参数化有限元模拟到数据分析与实验技术的设计和验证与原型actuator.If成功的，这项研究的结果将改变国家的最先进的MR制动执行器技术到智能执行器技术。 示例应用包括汽车工业、航空航天、机器人、土木工程、假肢、触觉、振动控制、游戏工业和康复。研究结果将被传播，以允许商业设备的创建。 研究生和本科工程专业的学生将受益于课堂教学和参与研究。 在校园举行的年度梅萨活动期间，将为代表性不足的初中和高中学生组织一个关于智能流体和执行器的新研讨会。 该研讨会将允许孩子们使用磁铁，线圈和MR流体进行实验，并强调研究如何导致新知识和产品的开发。