Mechanical Design of Rotating Machinery
The mechanical design of turbomachinery often appears to receive less attention than the aerodynamic or hydraulic performance. The efficiency has a direct and discernable effect on overall system performance, but the mechanical features which ensure satisfactory operation and a predictable life in service are often taken for granted. But in the modern competitive design world life and durability are important concepts that all engineers should be aware of and should be an integral part of the design process.
This is a mechanical design course in turbomachinery, focusing on structural dynamics, rotor dynamics, and bearing design. A strong emphasis is placed on considering manufacturing and assembly practices in the design process. The course will cover the basic design concepts, demonstrate basic principles with common laboratory and test equipment, and give practical examples. The subject matter is applicable to a new engineer, experienced project engineer, or group supervisor looking to enhance his/her understanding of potential problem areas in the mechanical design of turbomachinery.
Participants earn 1.8 Continuing Education Units (CEUs).
OUTLINE
Structural Design
- Basic structural theory
- Active structures
- Steady stress blade analysis
- High cycle fatigue in turbomachinery impellers
Rotordynamics
- Basics of rotordynamics
- Rotor bearing stability
- Torsional analysis
- Forced response of rotor systems
- Rigid and flexible rotor balancing
Bearing Design and Analysis
- Overview of bearing design
- Tilting pad journal bearing design
- Bearing selection
- Plain journal bearing design
WHO SHOULD ATTEND
The subject matter is applicable to a new engineer, experienced project engineer, or group supervisor looking to enhance their understanding of the mechanical design of turbomachinery. Engineers whose work is principally concerned with aerodynamic or hydrodynamic design will also learn important insights into the complete process of design, and will recognize how mechanical design problems will limit or influence the design strategy.
INSTRUCTORS
Mr. Peter Klein
Mr. Peter Klein manages development of Concepts NREC’s
specialized CAM software for 5-axis milling of impellers and blisks.
He has been working with the CAM software group since 1991 to
develop a market-leading CAM product with a world-wide user base
of companies making parts for aerospace and industrial applications.
Mr. Klein holds a BSME from Rensselaer Polytechnic Institute.
Mr. Bradford Myrick
Mr. Bradford Myrick is the acting director of mechanical
design and CAD at Concepts NREC. He has 19 years engineering experience
with turbomachinery primarily for industrial applications. Previously
Mr. Myrick worked 14 years for Ingersoll-Rand with industrial
centrifugal pumps and pulp mill machinery. His background is in
machine design and related materials and manufacturing processes.
He has served as a project engineer/manager on turbomachinery
development projects as well as heading the CAD/drafting group.
Mr. Myrick holds a BSME from Worcester Polytechnic Institute.
Dr. George Smith
Dr. George Smith is a faculty member of Tufts University, Boston.
After graduating he worked at General Electric, Pratt & Whitney
Aircraft, and at NREC. After joining Tufts in 1977 he maintained
close links with NREC and now Concepts NREC, and has worked on
a very extensive range of projects for aerospace and industrial
turbomachinery. Dr. Smith specializes in failure detection, prediction
and analysis.
Dr. Karl D. Wygant
Dr. Wygant joined Concepts NREC in 1998 as an engineer with prime responsibility for all rotor dynamics, bearing design and analysis activities. He is involved in a variety of mechanical tasks, including finite element analysis (FEA) and modal analysis. Dr. Wygant has expertise in several technical areas, including the design of fluid film bearings, rotor dynamics and FEA. He holds a Bachelor of Science degree in mechanical engineering from Clarkson University, a Master of Science and a Ph.D. degree in mechanical engineering from the University of Virginia, and is a member of STLE.
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