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Outline
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Vibration Fundamentals and Simulation
  • Spectra Quest, Inc.
    8205 Hermitage Road
    Richmond, Virginia 23228
    Phone: (888) 773-2877
    Fax: (804) 261-3300
    E-mail: info@spectraquest.com
    Website: http://www.spectraquest.com
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What is it?
  • Vibration Fundamentals and Simulation is software designed to teach basic concepts of vibration using a new interactive and visual simulation technique.


  • Each concept is explained theoretically and simulated to expedite learning.
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Highlights
  • Basic concepts simulated in user selected input parameters
  • Vivid visualization to enhance learning and clarification
  • Full math details available
  • Understand effects of stiffness, mass and damping
  • Learn vibration and force transmission issues
  • Free, forced, and combined responses simulated for variety of user selectable conditions
  • Input condition controllable by user
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Topics Included!
  • 1. Vibration kinematics concepts
  • 2. Mathematical Modeling using Equivalent Mass and Spring
  • 3. Free Vibration of Undamped, Underdamped and Overdamped
  •     Systems
  • 4. Logarithmic Decrement
  • 5. Harmonic Excitation of Undamped, Underdamped Systems
  • 6. Transient Response of Underdamped Systems--Step Input and
  •     Impulse Input
  • 7. Combined Vibration--Harmonic Excitation with Initial Displacement and Velocity
  • 8. General Forced Response
  • 9. Base Excitation
  • 10. Frequency Response Function
  • 11. Vibration Terminology
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Sinusoidal Relations
  • What you will learn:
    1. Harmonic motion represented by displacement, velocity and acceleration
    2. Phase and magnitude relationship among displacement, velocity and
  •           acceleration
    3. Converting among displacement, velocity and acceleration
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Free Vibration Simulation
  • What you will learn :
    1. Ideal mass, ideal spring and ideal damping
    2. Free vibration properties of undamped system
    3. Free vibration properties of underdamped system
    4. Free vibration properties of critical damped system
    5. Free vibration properties of overdamped system
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Logarithmic Decrement Simulation
  • What you will learn :
    1. Concepts of logarithmic decrement
    2. Calculation of logarithmic decrement
    2. Relationship between logarithmic decrement and damping ratio
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Harmonic Excitation of Undamped and Underdamped System
  • What you will learn :
    1. Vibration properties of harmonic excitation of undamped system
    2. Vibration properties of harmonic excitation of underdamped system
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Transient Excitation of Single Degree of Freedom
  • What you will learn :
    1. Vibration properties of impulse response for underdamped system
    2. Vibration properties of step response for underdamped system
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Combined Vibration
  • What you will learn :
    1. Complete response as sum of two frequencies
    2. Principle of superposition
    3. Vibration response for different initial and force frequency conditions.
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General Forced Response
  • What you will learn :
    1. Impulse response
    2. Application of Convolution Integral in general forced response
  •           calculation
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Base Excitation
  • What you will learn :
    1. Concepts of Base Excitation
    2. Mathematical Modeling of Base Excitation problem
    3.Concepts of Displacement Transmissibility and Force Transmissibility
    4. Relationship between Transmissibility and Frequency Ratio
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Frequency Response Function
  • What you will learn :
    1. Frequency response function of a Mass-Spring-Damper system
    2. Magnitude response
    3. Phase Response
    4. Relationship between frequency response function and damping ratio
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Panel Example Animation
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Any Questions?