Rotor Dynamics One-Day Course
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Comments from Attendees “It made me aware of the items that need consideration in the design of rotating equipment” “The opportunity to hear an expert recount the real problems and solutions he/she has encountered over a career -- real concrete examples -- is unbelievably beneficial” “Just having a talented lecturer "tell war stories" of his career, while including the science behind each case, is a simple but effective information transmittal method. It is to be encouraged!” “Provided background and fundamentals for tasks that I routinely perform” “David is an excellent presenter with just enough humor to keep some of the dry stuff moving along” “The presented information is beneficial in understanding optimal balancing and failure modes/causes” “The real-world case studies presented in a straightforward, candid, engineering manner were the most interesting. Add more” “Received a good overview of rotor dynamics” “Sheds light on root causes of vibration problems often encountered” “Too short” “Great job !” |
| A One-day Course on the Dynamics of Rotating Machinery |
| Rotor Dynamics “The Expected and Unexpected Behavior of Rotating Machinery” |
| Course Description This course is a broad exploration of the usual and unusual dynamic behavior of rotating machinery. It has been developed from knowledge gained through 37 years experience at United Technologies and 9 years of private consulting. Learn about the phenomenon of synchronous whirl - that ubiquitous characteristic of all rotating shaft systems. Learn not only the fundamentals but the intricacies of how the three basic properties of vibrating systems (mass, stiffness, and damping) affect vibration in ways that are counterintuitive. Become familiar with the "rotor dynamics dictionary" and see why rotor dynamics has a major impact on product design, component reliability, and customer satisfaction. This one-day course explores the practical aspects of rotating system behavior. Learn about damping and why it has positive and negative effects on vibration. Discover why squeeze film dampers obey the laws of physics but defy the laws of logic. Become familiar with rotor dynamic analysis techniques and how they provide a physical understanding of operational behavior. Learn why balancing – the last great hope for controlling vibration - is both an art and a science, and why gyroscopic inertia greatly complicates rotor dynamic analysis. Explore the unexpected behavior of rotating machinery and see how the fundamentals of rotor dynamics are easily extended to the analysis of complex multi-shaft, multi-bearing rotating systems. The course focuses on real-world products, problems, and solutions; discusses rotor dynamic instabilities; explains why balancing doesn’t always work; addresses the value of analyzing test data; and answers the question of why a critical speed is not always ‘critical’. The objectives of the course are: to present rotor dynamic fundamentals, to instill a general understanding of the practical aspects of rotating machinery vibration, and to establish an awareness of the methodology and terminology of rotor dynamic analysis. The course is designed for engineers, scientists, technicians and managers who want to become familiar with a discipline that is an integral part of design, development, assembly, and field service of nearly every product with rotating shafts. |
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