Development of Virtual Reality Tools for Engineering Education

工程教育虚拟现实工具的开发

• 批准号: 9975680
• 负责人: Donald Brenner
• 金额: $ 8万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9975680&HistoricalAwards=false
• 关键词: Development; Virtual; Reality; Tools; Engineering

9975680BrennerThis project at North Carolina State University continues development of virtual reality (VR) tools for engineering education that allow students to interact tactily and visually with an educational computer model. The hardware for each VR station is composed of a force-feedback haptic and PC-based visualization. The haptic is essentially a three-dimensional hand-held joystick in which mechanical linkages are used to control the motion of the haptic arm. This control can be in the form of a push or pull, or a resistance to motion. During the first funding period, five education software modules that include interatomic forces, stress-strain, diffusion and surface dynamics of vapor deposition have been developed. In the continuation phase, these modules will be refined to eliminate chatter and to include stereo visualization capabilities, and new modules illustrating atomistic concepts related to mechanical properties of materials (creep, fatigue) and modules built around atomic-force microscopy images will be developed.Simultaneous tactile and visual interaction with modules designed to illustrate concepts in materials engineering allows students to gain "hands-on" experience with otherwise seemingly abstract topics such as interatomic forces and diffusion barriers. This capability has proven especially important for engineering students that relate to practical applications rather than abstract concepts. Students working on this project have written modules illustrating interatomic bonding, stress-strain behavior, and diffusion processes that take advantage of this hardware.

9975680布伦纳北卡罗来纳州州立大学的这个项目继续开发用于工程教育的虚拟现实（VR）工具，使学生能够与教育计算机模型进行直观的交互。 每个VR工作站的硬件由力反馈触觉和基于PC的可视化组成。 触觉本质上是一个三维手持操纵杆，其中机械连杆用于控制触觉臂的运动。这种控制可以是推或拉的形式，也可以是对运动的阻力。 在第一个供资期间，开发了五个教育软件模块，包括原子间力、应力应变、扩散和气相沉积的表面动力学。 在继续阶段，这些模块将被完善，以消除颤振，并包括立体可视化功能，以及说明与材料机械性能相关的原子概念的新模块（蠕变，疲劳）和围绕原子力显微镜图像构建的模块。同时与旨在说明材料工程概念的模块进行触觉和视觉交互，使学生能够“动手”对原子间力和扩散势垒等看似抽象的主题有丰富的经验。 事实证明，这种能力对于与实际应用而不是抽象概念相关的工程专业学生尤为重要。 从事这个项目的学生已经编写了模块，说明原子间的键合，应力-应变行为，以及利用这种硬件的扩散过程。