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Mechanical Vibrations and Their Effects on the Performance and Service Life of Engineering Systems (1.8 CEUs)
- Register two or more delegates and get %10 off course fees each
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- We could offer any of our courses at a location of your choice and customized contents
according to your needs, please contact us at :
inhouse@gic-edu.com or
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to submit an online request.
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A certificate of completed Continuing Education
Units (CEUs) will be granted at the end of this course.
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Daily Schedule:
8:00am - Registration and coffee (1st day only)
8:30am - Session begins
4:30pm - Adjournment
Breakfast, two refreshment breaks and lunch are provided daily.
Background
In industrial applications, mechanical vibrations produce numerous adverse effects including excessive stresses, large deformations and progressive damage accumulation in engineering materials due to cyclic fatigue. Efforts to diagnose, mitigate or prevent such problems require in-depth knowledge of several technical fields and an integrated interdisciplinary approach to the analysis, design and service life prediction of engineering systems subjected to cyclic loading regimes.
Objectives
The main objective of this course is to present an overview of the fundamental concepts, models and methods in the field of mechanical vibrations. Attention is focused on the effects of mechanical vibrations on the performance of structures and materials, including material fatigue and failure under cyclic loading conditions. Design methodologies developed to reduce the negative effects of mechanical vibrations in Industrial applications are discussed.
Description
This is an intensive three-day interdisciplinary course composed of two independent self-contained modules. Module 1outlines a broad range of topics in the field of mechanical vibrations, including modeling of mechanical systems and the effects of structural damping. The effectiveness, limitations and practical applications of various models are emphasized. Real life vibration problems are used to illustrate the causes and effects of mechanical vibrations encountered in industrial applications. Various aspects of structural design and vibration control strategies are discussed. Module 2 concerns the effects of mechanical vibrations on the performance and durability of engineering materials. Attention is focused on the fatigue of materials subjected to cyclic loads. The basic characteristics of high and low cycle fatigue are discussed. Material damage evolution and service life prediction of metals and polymers are considered. Various practical aspects of fatigue testing, analysis, design and service life prediction of structures and machines are outlined and illustrated by real life examples.
Target Audience
Mechanical, civil, industrial, materials, pipeline and reservoir engineers; consultants; designers; project managers; and other technical personnel.
Program Outline (1.8 CEUs / 18 PDHs)
MODULE 1 - MECHANICAL VIBRATIONS (Dr. Oleg Vinogradov, P.Eng.)
Day 1 - Vibration Characteristics
The vibration phenomenon
- The causes of mechanical vibrations
- Characteristics of mechanical systems
- Degrees of freedom (DOF)
- Energy conservation principle
- Resonance conditions
Vibration damping
- Material damping
- Dry friction damping
- Fluid damping
- Hysteresis
- Effects of damping at resonance
External forces causing vibrations
- Periodic forces
- Impulse forces
- Hydrodynamic forces
Modeling
- Discrete systems
- Continuous systems
- Linear models
- Nonlinear models
- Models describing steady state behaviour
- Models describing non-steady state behaviour
Examples of linear models
- Free vibrations of single degree of freedom (DOF) system without damping
- Free vibrations of single DOF system with damping
- Forced vibrations of a single DOF system without damping
- Forced vibrations of a single DOF system without damping
- Forced vibrations of a single DOF system with damping
- Linear vs nonlinear vibrations of a single DOF system
- Effects of nonlinear stiffness
- Effects of nonlinear damping
Day 2 - Causes and Effects of Mechanical Vibrations
Industrial Applications
- Structural imperfections
- Unbalanced shafts
- Imperfect geometry of gears
- Imperfect geometry of electrical motors and generators
- Effect of assembly on vibrations
- Non-coaxial coupling of shafts
- Rotors with stacking multi-disk systems
- Coupling of components with different material properties
- Effect of wear on vibrations
- Wear of bearings
- Wear of cams
- Wear of couplings
Design and Control
- Aspects of mechanical design
- Design tolerances
- Vibration control strategies
MODULE 2 - EFFECTS OF VIBRATIONS ON MATERIAL PROPERTIES (Dr. Aleksandra Vinogradov, P.Eng.)
Day 3 - Cyclic fatigue of engineering materials
Engineering Materials
- Definition
- Classes of engineering materials
- Metals and polymers
- Material properties
- Temperature response
- Creep
- Static failure
- General approach to failure analysis
- Failure criteria
Fatigue of Materials
- Definition of fatigue
- A historical perspective
- Significance of fatigue
- Fatigue loads
- Fatigue life
- Fatigue failure mechanisms
Prediction of Fatigue Life
- Approaches to fatigue life prediction
- Stress-life approach
- Fatigue test methods
- S-N Diagram
- Fatigue characteristics
- Statistical nature of fatigue
- Fluctuating stresses
Factors Influencing Fatigue Life
- Stress concentration
- Surface conditions
- Material microstructure
- Temperature
- Corrosion
- Creep–fatigue interaction
Fatigue Design
- Objectives
- Design strategies
- Design process
- Infinite-life and safe-life design
- Estimation of fatigue strength
- Estimation of fatigue life
- Design modification factors
- Improvement of fatigue performance
After Attending This Course You Will Be Able To:
- Enhance your understanding of the vibration phenomenon
- Expand and update your knowledge of vibration modeling
- Detect the sources of vibration problems
- Evaluate the effects of various design parameters on the vibration response of mechanical systems
- Develop in-depth understanding of fatigue mechanisms
- Evaluate the potential for fatigue failure
- Predict the fatigue strength and service life of mechanical engineering systems and components
- Implement design strategies to improve fatigue characteristics of engineering systems
Course materials will be presented by two instructors:
 Dr. Oleg Vinogradov, P.Eng., is a recognized expert in the field of mechanical vibrations. He has extensive industrial and academic experience in the subject area, including teaching undergraduate and graduate courses, research and consulting in the fields of machine design, mechanical vibrations, oilsands technology, granular mechanics, multiphase flow, structural analysis, design and pipeline engineering. Dr. Vinogradov has authored two books and is the author or co-author of over a hundred technical articles and four patents. Dr. Vinogradov’s numerous contributions are well recognized within the profession. He is a recipient of many honors and awards at the local, national and international levels.
 Dr. Aleksandra Vinogradov, P.Eng., is an established expert in the field of materials engineering. She has extensive teaching, research and industrial experience in the related subject areas. Her research projects concerning fatigue, creep, and creep-fatigue interaction in engineering materials have been funded by leading US federal agencies such as NSF, NASA and DOE. Dr. Vinogradov is the author or co-author of over hundred publications including book chapters and technical articles. She has delivered invited speeches at international conferences, and provided consulting services in the field of advanced materials. Dr. Vinogradov is a recipient of many prestigious honors and awards including the Best Paper Award of the American Society of Mechanical Engineers and the NASA Award of Recognition for Contribution to the US National Space Program.
To register for this course click on the register button above, or by fax. To register
by fax, download and fill our registration form,
then fax it to (888) 849-4871. Mail your cheque to our address
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P.S. GIC can offer many of our courses at a location of your choice, at your convenience
and tailored to your special needs. For more information, please contact us.
Course Materials:
Each participant will receive a complete set of course notes and handouts that will
serve as informative references.
GIC reserves the right to cancel or change the date or location of its events. GIC's
responsibility will, under no circumstances, exceed the amount of the fee collected.
GIC is not responsible for the purchase of non-refundable travel arrangements or
accommodations or the cancellation/change fees associated with cancelling them.
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and accommodations. Please click here for
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