Course Description
This course is designed to provide participants with an introduction to the fundamental concepts of vibration measurment. Participants will learn an appreciation for harmonic motion as well as the modeling of mechanical systems. This course will also discuss the free and forced vibration of single-degree-of-freedom systems and multi-degree-of-freedom systems; modal superposition method; vibration isolation and damping, vibration measuring instruments; vibration of discrete and continuous systems; introduction to experimental modal analysis.
Course Objectives
- Familiarizing with the concepts of mechanical vibrations
- Understanding vibration measurement systems
- Being able to interpret mechanical vibrations test requirements
- Studying the response of discrete and distributed systems to various inputs
- Learning how to design systems for vibration suppression and machine condition monitoring
Who Should Attend?
- Those who are dealing with machines
- Machine designers
- Technicians
- Mechanical Engineers
Course Details/Schedule
- Introduction to Mechanical Vibrations
- Sources of Vibratory Energy In Machines, Vehicles and Structures
- Effects of Vibration and Noise
- Rigid Body Motion vs. Structural Response
- Single Degree of Freedom System
- Free and Forced Vibration
- Free Vibration and Natural Frequency
- Response to Forced Vibration
- Transmissibility Ratio
- Single Degree of Freedom System – Resonance
- Single Degree of Freedom System – Isolation
- Damping
- Multiple (Mechanical) Degrees of Freedom
- Continuous Systems
- Single Frequency Excitation
- Multi-Frequency Excitation
- Critical Frequencies
- Continuous Systems
- The Specialized Language of Vibration
- Terms, Definitions and Equations of Motion
- Peak vs. RMS Values
- A Helpful Vibration Calculator
- Random Vibration
- Introduction To Non-Periodic Motion
- Narrow Band Response
- Measurement and Analysis of Random Vibration
- Vibration measurement
- Optical and Fixed Reference Measurements
- Seismic Transducers Measuring Vibratory Displacement
- Optical Methods
- Eyeball Estimating
- Optical Wedge
- Parallel Limits
- Measuring Microscopes
- Displacement Sensors
- Non-Contacting Sensors
- Displacement Meters
- Measuring Vibratory Velocity
- Velocity Pickups
- Integration of Acceleration Signals
- Differentiation of Displacement Signals
- Laser Doppler Vibrometers
- Measuring Vibratory Acceleration
- Servo Accelerometers
- Wire Strain Gage Accelerometers
- Piezoresistive (PR) Accelerometers
- Piezoelectric (PE) Accelerometers
- Isotron (IEPE) Accelerometers
- Variable Capacitance (VC) Accelerometers
- Measuring Vibratory Force
