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

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该奖项为布拉德利大学提供资金，以获得先进的高速成像系统，用于先进材料的动态断裂力学，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成部分是一个高速/高分辨率的旋转镜CCD相机，能够在高达每秒80万帧的帧速率范围内捕获62张100万像素的图像。 该系统还包括超高放大率变焦镜头，允许微米分辨率（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力学和断裂响应;（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。齿轮;（c）研究液滴碰撞，以改进目前的燃料喷雾计算流体动力学模型，从而减少排放，提高燃料经济性;和（d）表征静电纺丝过程中纳米纤维的形成以产生活细胞粘附的活微环境，以及改进用于制造纤维的当前工艺。速度成像系统在布拉德利大学的研究和教育中具有广泛的意义。 这种仪器将被纳入PI的研究和教学实验室将创造一个有吸引力的学习环境，并提高本科生和研究生的教育经验和实践培训。 我们将积极招募本科生参与上述项目。 PI计划在完成物理和力学课程后，在大一结束时确定和招募本科研究人员。 研究活动将精心组织，以便正确开展这些活动所需的知识将与课堂上教授的材料相匹配并加强。 现有的课程，生物医学工程，成像处理，流体动力学和断裂力学将扩大和新的将开发，包括实验与这种成像系统，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，以成功地进行他们目前无法获得的研究方面。

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.