In this course, engineers with backgrounds in mechanical, structural, or related engineering disciplines will gain the knowledge to calculate natural frequencies and assess responses to dynamic forces. They will also acquire skills to design solutions aimed at minimizing vibrations in both new and existing systems. The course covers a wide range of topics, including machineries, shafts, rotor systems, rotating equipment, their supports and foundations, vibration absorbers, vibration isolators, shock loads and shock spectra, earthquakes, transportation vibrations, flow-induced vibrations, and vibration monitoring.
Objectives
- Calculate the natural frequencies of complex equipment, structures, and systems.
- Analyze dynamic responses to various operational and environmental forces.
- Compute equivalent static loads for structural analysis.
- Utilize various methods to reduce vibrations in new and existing equipment and structures. This includes frequency separation techniques, damping, vibration absorbers, tuned mass dampers, and vibration isolation.
- Perform calculations related to specialized topics, such as solid-fluid systems and flow-induced vibrations.
Overview
- Introduction
- Single-degree-of-freedom systems (SDOF)
- Free Vibration: Natural frequencies and critical damping
- Forced Vibration: Harmonic, transient, and impulse forces
- Base excitations: response spectra
- Dynamic amplification factors
- Resonance
- Equivalent Static Load
- Torsional vibration
- Methods for reducing vibration levels in SDOF
- Shock spectrum
- Developing shock spectra from force time histories
- Using shock spectra to compute dynamic responses to shock loads
- Multiple-degrees-of-freedom systems (MDOF)
- Natural frequencies and mode shapes
- Direct Time-history response analysis
- Modal Time-history response analysis
- Shock spectrum method of response analysis
- Comparison of Methods: Relative advantages, accuracy, and suitability
- Methods for reducing vibration levels in MDOF
- Earthquakes and Other Base Excitations
- Load specification
- Time-History Analysis
- Response Spectrum Analysis
- Design Aspects
- Finite Element Analysis (FEA)
- Modal testing of equipment and structures
- Torsional vibrations (shafts, disks, and rotors)
- Vibration Absorbers (Tuned-Mass Dampers)
- Vibration Isolation
- Transportation of Sensitive Equipment
- Vibration of Rotating Equipment
- Foundations for Rotating Equipment
- Flow-Induced Vibrations
- Machinery Vibration Monitoring and Problem Diagnosis
