definition vibration
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- Freebase(0.00 / 0 votes)Rate this definition: Vibration. Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point. The oscillations may be periodic such as the motion of a pendulum or random such as the movement of a tire on a gravel road.
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Vibration Measurement; Vibration Sensors; Measuring Vibration Precisely Vibration is a time-based (periodic/cyclic) displacement of an object around a center static position. The coupling mechanism between vibration energy source and the object of interest. Vibration measurement is complex because of its many components – displacement, velocity, acceleration, and frequencies.
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Molecular vibration A molecular vibration occurs when atoms in a molecule are in periodic motion while the molecule as a whole has constant translational and rotational motion. fundamental vibration is excited when one such quantum of energy is absorbed by the molecule in its ground state. When two quanta are absorbed the first overtone is excited, and so on to higher overtones. To a first approximation, the motion in a normal vibration can be described as a kind of simple harmonic motion.
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vibrate vibrate - shake, quiver, or throb; move back and forth rapidly, usually in an uncontrolled manner. 1  move - move so as to change position, perform a nontranslational motion; He moved his hand slightly to the right. 2  shimmy, wobble - tremble or shake; His voice wobbled with restrained emotion.
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Vibrations, Frequencies and Harmonics HARMONICS A characteristic of energy generated by a vibration is that there will be a number of frequencies appearing up the frequency spectrum at multiples of the fundamental frequency. These are called Harmonics.
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Molecular vibration To a first approximation, the motion in a normal vibration can be described as a kind of simple harmonic motion. In this approximation, the vibrational energy is a quadratic function (parabola) with respect to the atomic displacements and the first overtone has twice the frequency of the fundamental.he coordinate of a normal vibration is a combination of changes in the positions of atoms in the molecule. When the vibration is excited the coordinate changes sinusoidally with a frequency ν, the frequency of the vibration.
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- Amplitude Definition: 1.The maximum extent of a vibration or displacement of a sinusoidal (!) oscillation, measured from the position of equilibrium. Amplitude is the maximum absolute value of a periodically varying quantity.
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resonance The energetic vibration of a body produced by application of a periodic force of nearly the same frequency as that of the free vibration of the affected body. It is the condition of two bodies adjusted to have the same frequency of vibration. There are two types of resonance: sympathetic and ground. Sympathetic resonance is a harmonic beat that develops when the natural vibration frequency of one mechanism is in phase with another mechanism's vibrational frequency.
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Sound A drum produces sound via a vibrating membrane. In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a transmission medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain.
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Frequency and Period of a Wave In mathematical terms, the frequency is the number of complete vibrational cycles of a medium per a given amount of time. Given this definition, it is reasonable that the quantity frequency would have units of cycles/second, waves/second, vibrations/second, or something/second. Another unit for frequency is the Hertz (abbreviated Hz) where 1 Hz is equivalent to 1 cycle/second.
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Spiritual Law of Frequency and Vibration …‘fear’ is a very heavy vibration and has a low frequency. In contrast, calmness, peace, love and harmony are light vibrations and have a high frequency. The Spiritual Law of Frequency and Vibration tells us that rage and anger are low, heavy, vibrational energies.n contrast, calmness, peace, love and harmony are light vibrations and have a high frequency. The Spiritual Law of Frequency and Vibration tells us that rage and anger are low, heavy, vibrational energies.
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seismic wave an earth vibration generated by an earthquake or explosion. Contemporary definitions for seismic wave. noun. an elastic shock wave that travels through the earth, as from an earthquake or explosion; also, one of four distinct waves generated by an earthquake.
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- Exposure tovertical vibrations in the 5-10 Hz range generally causes resonance in the thoracic-abdominal system, at 20-30Hz in the head-neck-shoulder system, and at 60-90 Hz in the eyeball. When vibrations are attenuated in thebody, its energy is absorbed by the tissue and organs. The muscles are important in this respect. Vibrationleads to both voluntary and involuntary contractions of muscles, and can cause local muscle fatigue,particularly when the vibration is at the resonant-frequency level.
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vibrate judder, shake - shake or vibrate rapidly and intensively; The old engine was juddering 2. vibrate - move or swing from side to side regularly; the needle on the meter was oscillating oscillate. sway, swing - move or walk in a swinging or swaying manner; He swung back
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Teacher and Educator Discounts Many stores and companies offer special discounts to teachers, educators, school-based staff and city employees. Some of these discounts require you to verify your DOE email address; others require valid school or teacher ID. Some of these discounts are only available in stores, not online.
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Molecular vibration The frequency of the periodic motion is known as a vibration frequency, and the typical frequencies of molecular vibrations range from less than 10 13 to approximately 10 14 Hz, corresponding to wavenumbers of approximately 300 to 3000 cm −1.
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National Basketball Association The Chicago Packers (now Washington Wizards) became the ninth NBA team in 1961. From 1966 to 1968, the league expanded from 9 to 14 teams, introducing the Chicago Bulls, Seattle SuperSonics (now Oklahoma City Thunder), San Diego Rockets (who relocated to Houston four years later), Milwaukee Bucks, and Phoenix Suns.
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Waves and Sound The period of a wave or a vibration is the time it takes for one complete back and forth vibration. The frequency of a wave or a vibration specifies the number of back-and-forth vibrations it makes in a given time. If the frequency of a vibrating object is known, its period can be calculates, and vice versa. As you can see below, frequency and period are inverses of each other:
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- Check your grammar now! : a single-frequency mode of vibration of a body or physical system in which the amplitude varies from place to place, is constantly zero at fixed points, and has maxima at other points.
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What is the unit used to measure vibration? Vibrations per second, or cycles per second, are measured in the unit hertz (Hz).
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Heart rate A large body of evidence indicates that the normal range is 50-90 beats per minute. This resting heart rate is often correlated with mortality. For example, all-cause mortality is increased by 1.22 (hazard ratio) when heart rate exceeds 90 beats per minute.
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Resonance In sound applications, a resonant frequency is a natural frequency of vibration determined by the physical parameters of the vibrating object. This same basic idea of physically determined natural frequencies applies throughout physics in mechanics, electricity and magnetism, and even throughout the realm of modern physics.
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Vibration - Introduction Speed of vibration is expressed in units of metres per second (m/s). Acceleration is a measure of how quickly speed changes with time. The measure of acceleration is expressed in units of (metres per second) per second or metres per second squared (m/s2). The magnitude of acceleration changes from zero to a maximum during each cycle of vibration.
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- mass noun. 1  1The quality in a sound of being deep, full, and reverberating. ‘the resonance of his voice’. 2  2Physics. The reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighbouring object.
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Estuaries | Swale Estuary BBC Copyright. The Swale estuary is a 13 mile channel that separates the Isle of Sheppey from the mainland of Kent. In common with most estuaries, this is an environment of continual change with a complex eco-system which is great for a diversity of wildlife.1  More about the Swale Estuary.ontinue to the south bank of the Swale estuary. Parking opposite the Information Centre. The 333 bus from Maidstone, Sittingbourne and Faversham runs to the village of Oare. There is a one mile walk to the reserve from the bus drop off point.
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- Just A Vibration is the title of a musical project led by Shri and featuring Skelmanthorpe Brass Band and Hammonds Saltaire Band. Padma Shri is the fourth highest civilian award after Bharat Ratna, the Padma Vibhushan and the Padma Bhushan.