Bernhard P. Bettig
Assistant Professor; PhD, Arizona State University
Computer-Aided Design, Geometric Modeling, Knowledge-based Systems
Mechanical Engineering-Engineering Mechanics Dept.
Office: (906) 487-1897
Fax: (906) 487-2822
Visit MTU's mechanical design research lab MDRL.
The “Design and Manufacturing Computations Lab” is the new lab name, but I haven’t had a chance to update the web page yet.
Computer-Aided Design Methods MEEM 4403.
Introduction to the Finite Element Method MEEM 4405.
Design Automation MEEM 5408.
Clean Snowmobile Competition
Short course on rotordynamics
Dr. Bettig's research interest is in how to create better designs, faster. This includes the study of design theory and methodology, and design automation tools. Of particular interest is "Design for X" tools to give rapid feedback to the designer about decision impacts on performance, manufacturability, maintainability, etc. To query and manipulate geometric models at a high level, Dr. Bettig has developed a concept, the "Geometry Exemplar". This generic data structure provides a unified, mathematical representation for disparate operations such as: feature/machining region recognition, design by features, solid modeling operations and application of geometry-related engineering knowledge.
Dr. Bettig has developed software for a variety of applications including geometric modeling, variational geometric/algebraic constraint solving, tethered space craft vibration visualization, finite element/finite difference simulation of hydro-generator rotordynamics and a generic object-oriented CAD framework to integrate design and analysis tools. Dr. Bettig also has experience as an aerospace design engineer and has published research in geometric modeling, vibrations and CAD software architectures.
Bettig, B., Shah, J. (2000) "Derivation of a standard set of geometric constraints for parametric modeling and data exchange", (in print) Computer-Aided Design
Bettig, B. (1999) "A Graph-Based Geometric
Problem Solving System for Mechanical Design and Manufacturing", Ph.D.
Dissertation, Dec. 1999,
Bettig, B., Shah, J. (1999) "An object-oriented program shell for integrating CAD software tools", Advances in Engineering Software, Vol. 30, No. 8, pp. 529-541
Bettig, B., Han, R.P.S. (1999) "Modeling the lateral vibration of hydraulic turbine-generator rotors", Journal of Vibration and Acoustics, Transactions of the ASME Vol. 121, No. 3, pp. 322-327
Bettig, B., Han, R.P.S. (1998) "Predictive maintenance using the rotordynamic model of a hydraulic turbine-generator rotor", Journal of Vibration and Acoustics, Transactions of the ASME, Vol. 120, No. 2, pp. 441-448
Bettig, B., Han, R.P.S. (1996) "An object-oriented framework for interactive numerical analysis in a graphical user interface environment", International Journal for Numerical Methods in Engineering, Vol. 39, No. 17, pp. 2945-2971