CAREER: Haptic Models of Large Structures

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CAREER: Haptic Models of Large Structures Bozidar Stojadinovic ``I hear and I forget. I see and I remember. I do and I understand.'' Lao Tsu, 604-531 BCThe goal of this CAREER project is to make a tool for hapticstructural modeling. This tool will be a virtual environment. A userwill be able to see and fly through a large structure. The user will,also, be able to touch the structure, to feel its resistance, and topush on it. To do this, I intend to merge a haptic interface tool intoan augmented reality setting.My objectives for the next four years are:1. To make a virtual environment for modeling three-dimensionalframe structures using VRML and interface it to DRAIN-3DX, aprogram for structural analysis of civil structures.2. To incorporate a haptic interface in this virtual environmentand develop a haptic rendering methodology for large structure,enabling the user to push the structure and feel its deformation.3. To interface the virtual modeling environment and thereal laboratory environment by making it possible to addressvirtual and real sub-structures through the same interface. Development of a haptic structural modeling tool is a challenge.Haptic rendering of large objects is an open problem. Design of ahaptic interface to virtual and real substructures has not been donebefore, but may have a broader significance for a Network forEarthquake Engineering Simulation (NEES), a five-year NSF initiativetaking off in 1999.The challenges are here, but the benefits of having a haptic learningtool are huge! Students will be able to touch structures, resist landslides, feel earthquake vibrations and immerse in fluid flow. Thishaptic tool will take learning from hearing and seeing to touching anddoing... and understanding, as Lao Tsu meant two-and-a-half milleniaago.--