MRI: Acquisition of a High Speed Imaging System for Fundamental and Applied Research/Teaching at Bradley University

MRI：布拉德利大学采购用于基础和应用研究/教学的高速成像系统

• 批准号: 0922826
• 负责人: Scott Post
• 金额: --
• 依托单位: Bradley University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-15 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0922826&HistoricalAwards=false
• 关键词: MRI; Acquisition; Speed; Imaging; System

This award is funded under the American Recovery and Reinvestment Act of 2009(Public Law 111-5).This award provides funds to Bradley University to acquire a state-of-the-art high-speed imaging system for research and education in the areas of dynamic fracture mechanics of advanced materials, fluid dynamics and biomedical engineering. The main component of this imaging system is a high-speed/high-resolution rotating mirror CCD camera capable of capturing 62 one-megapixel images over a wide range of frame rates up to 800,000 frames per second. The system also includes ultra-high magnification zooming lenses allowing for micron resolution (up to 1.5 micrometers/pixel). This system will enable Bradley investigators to (a) understand and predict the mechanical and fracture response of polymer-based materials over a wide range of strain rates by measuring in real-time their dynamic deformation process using the full-field digital image correlation technique; (b) study the failure mechanisms in plastic gears subjected to realistic loading and environmental conditions allowing the development of reliable models to design plastic gears; (c) study the collisions of liquid drops to improve current CFD models for fuel sprays, which could result in reduced emissions and improved fuel economy; and (d)characterize nano-fiber formation during electrospinning to create a viable microenvironment for living cells to adhere to, and also to improve current processes utilized to fabricate fibers.The acquisition of the high-speed imaging system has broad implications in both research and education at Bradley University. This instrumentation that will be incorporated into the PIs research and instructional laboratories will create an attractive learning environment and enhance the educational experience and hands-on training of both undergraduate and graduate students. Undergraduate students will be actively recruited for involvement in the projects mentioned above. The PIs plan to identify and recruit undergraduate researchers at the end of their freshman year after completion of their physics and mechanics courses. The research activities will be carefully organized such that the knowledge required to properly carry out them will both match and reinforce the material taught in the classroom. Existing courses in biomedical engineering, imaging processing, fluid dynamics and fracture mechanics will be expanded and new ones will be developed to include experiments with this imaging system to show both the extent and limitations of analytical and numerical models. This instrumentation will also provide faculty in the College of Engineering and Technology at Bradley University with the necessary tools to successfully pursue aspects of their research which are currently not available to them.

该奖项根据 2009 年美国复苏和再投资法案（公法 111-5）提供资金。该奖项为布拉德利大学提供资金，用于购买最先进的高速成像系统，用于先进材料动态断裂力学、流体动力学和生物医学工程领域的研究和教育。 该成像系统的主要组件是高速/高分辨率旋转镜面 CCD 相机，能够在高达每秒 800,000 帧的帧速率范围内捕获 62 张 1 兆像素图像。 该系统还包括超高倍率变焦镜头，可实现微米级分辨率（高达 1.5 微米/像素）。 该系统将使布拉德利研究人员能够（a）通过使用全场数字图像相关技术实时测量聚合物基材料的动态变形过程，了解和预测聚合物基材料在各种应变率下的机械和断裂响应； (b) 研究塑料齿轮在实际载荷和环境条件下的失效机制，从而开发可靠的模型来设计塑料齿轮； (c) 研究液滴碰撞，以改进现有的燃料喷雾 CFD 模型，从而减少排放并提高燃料经济性； (d) 表征静电纺丝过程中纳米纤维的形成，为活细胞粘附创造可行的微环境，并改进当前用于制造纤维的工艺。高速成像系统的获得对布拉德利大学的研究和教育具有广泛的影响。 该仪器将被纳入 PI 研究和教学实验室，将创造一个有吸引力的学习环境，并增强本科生和研究生的教育体验和实践培训。 将积极招募本科生参与上述项目。 PI 计划在本科生研究人员完成物理和力学课程后在一年级结束时物色并招募。 研究活动将经过精心组织，以便正确开展这些活动所需的知识与课堂上教授的材料相匹配并得到强化。 将扩展生物医学工程、成像处理、流体动力学和断裂力学方面的现有课程，并将开发新的课程，包括使用该成像系统进行的实验，以显示分析和数值模型的范围和局限性。 该仪器还将为布拉德利大学工程与技术学院的教师提供必要的工具，以成功地开展他们目前无法获得的研究。