Introduction to Vibrations
Agenda
Registration: 8:00 – 8:30 am
Morning Session: 8:30 am – 1215 pm
Lunch (On your own): 12:15 – 1:15 pm
Afternoon Session: 1:15 – 4:30 pm
Why Vibrations?
Real world examples
• Tacoma-Narrows Bridge
• Others
Applicability to daily engineering problems
• Mechanical
• Civil
Seismic
Plumbing
• Electrical
Forms of Vibration
Synchronous
Non-synchronous
Linear vs. nonlinear
Eigenvalues and Eigenvectors
Methods for finding roots of simultaneous eqs.
Methods for determining eigenvectors (modeshapes)
Constitutive Equation of Motion
Simple mass/spring
Understanding consolidation and settlement
Effects of load types and soil types
Calculating loads and determining bearing capacity
Analysis Methods
Analysis Methods
• Normal modes
• Forced response
• FEA
• Handbook solutions
Test Methods
Normal modes
• Ping hammer
Forced response
• Shake table
• Piezoelectric crystal
• Other methods
Instrumentation
Significance of the fast Fourier transform
Significance of boundary conditions
Designing for Vibration
The Goodman diagram
Resonance avoidance
• Campbell diagram
• Rotordynamics critical speeds
Damping
• What is it and what is it not?
• Friction
• Viscous fluid
Failure Analysis/Forensic Investigation
Vibration as a contributor to fatigue failures
Failure analysis in the lab
• Bench marks
Striation Counting
LCF vs HCF
Credits
This seminar is open to the public and offers 6.5 hours of continuing education/PDHs to professional engineers in all states. HalfMoon Education is an approved continuing education provider in Indiana.
HalfMoon Education is an approved continuing education sponsor for engineers in Florida, Louisiana, Maryland, New Jersey (Approval No. 24GP00000700), New York (NYSED SponsorNo. 35), North Carolina, and North Dakota.
Attendance will be monitored, and attendance certificates will be available after the seminar for most individuals who complete the entire event. Attendance certificates not available at the seminar will be mailed to participants within fifteen business days.
Speakers
Brian Davis
Mr. Davis has over 27 years of cross-functional experience in aircraft propulsion systems/engines, failure analysis, manufacturing processes, fatigue and fracture mechanics, composite materials, and stress analysis. He has 23 years of experience in OEM gas turbine design and propulsion systems, as well as four years of experience in OEM medical device design with a specialization in ultrasonics. Mr. Davis holds a number of different patents and has experience with FAA certification and FDA 510(k) approval. He qualified as a US Naval Engineering duty officer (reserve) with rank of lieutenant. Mr. Davis received his BS degree in Mechanical Engineering from the University of Florida and his MS degree in Mechanical Engineering from the University of Cincinnati. He is a licensed professional engineer in Ohio and Florida.