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33 Cards in this Set
- Front
- Back
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What is complex vibration |
The sum of two or more simple vibration |
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What are frequency components or particles |
The simple vibrations that make up a complex vibration |
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What is aperiodic vibration |
Vibration that has no repeating pattern in time |
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Periodic |
Repeating pattern |
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Periodic motion |
Repeats itself in regular intervals until stopped by external action |
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Frequency |
Number of cycles per second |
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Waveform synthesis |
Process of combining several individual sinusoidal motion into complex waveform |
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What are harmonics |
Frequency components of a complex waveform that are whole number multiplies of its fundamental frequency |
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What is the fundamental frequency of a complex waveform |
Greatest common factor |
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Missing fundamental |
Complex periodic wave in which no component is equal to the fundamental frequency |
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What is waveform analysis |
Process of breaking down a complex waveform and determine its components |
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What are the two forms of complex vibration |
Periodic aperiodic |
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What does the Fourier theorem state |
Any complex vibration is the sum of various sinusoidal motion of varying amplitude, frequency and phase |
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Example of aperiodic vibration |
Noise |
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What are examples of complex periodic |
Sawtooth, square, triangular |
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What is another word for the second harmonic |
First overtone |
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What are the complex vibration that results from harmonically related components |
Periodic |
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What is it called when the fundamental frequency isn’t equal to the frequency of its lowest component |
The vibration has a missing fundamental |
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What have you found when you find the gcf |
Fundamental frequency |
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Waveform synthesis |
The process of combining several individual sinusoidal motions into a complex waveform |
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What is waveform analysis |
When you break down a complex waveform and determine it’s components |
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What domain do we display vibration on a waveform |
Time |
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What graph is used to the amplitude of components |
Spectrum |
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What kind of domain does spectrum display |
Frequency domain |
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What are displayed as vertical lines on a spectrum |
Spectral components |
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When a spectrum consists of one or more separate vertical lines it is called |
Line spectrum or discrete spectrum |
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What is it called when a spectrum has several spectral components |
Continuous spectrum |
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Factors that determine the frequency of vibration of a string |
Length , mass , and stiffness |
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Node |
Specific vibration pattern of a vibrating system associated with each resonance frequency of the system |
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What is a simple vibration |
Sine wave |
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Describe complex vibration |
Two or more simple vibration, common in nature |
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Two types of complex vibration |
Aperiodic and periodic |
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What are periodic complex vibration made up of |
Harmonics |
