vibration


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Related to vibration: Mechanical vibration

vibration

 [vi-bra´shun]
1. a rapid movement to and fro; oscillation.
2. the shaking of the body as a therapeutic measure.
3. a form of massage.
4. a technique of chest physical therapy whereby pressure and a shaking movement of the hand are applied to various segments of the lungs to mobilize secretions.

vi·bra·tion

(vī-brā'shŭn),
1. A shaking.
2. A to-and-fro movement, as in oscillation.
[L. vibratio, fr. vibro, pp. -atus, to quiver, shake]

vibration

Massage
A “soft tissue” technique used in massage therapy that uses vibrating movements, usually delivered by an electrical device.

vibration

Vox populi Jittering, oscillation, grinding

vi·bra·tion

(vī-brā'shŭn)
A group of movements in massage that involve fine or coarse rhythmic shaking of various structures, with or without compression or traction.
[L. vibratio, fr. vibro, pp. -atus, to quiver, shake]

Vibration

The purpose of vibration is to help break up lung secretions. Vibration can be either mechanical or manual. It is performed as the patient breathes deeply. When done manually, the person performing the vibration places his or her hands against the patient's chest and creates vibrations by quickly contracting and relaxing arm and shoulder muscles while the patient exhales. The procedure is repeated several times each day for about five exhalations.
References in periodicals archive ?
Food and beverage sectors' dependence on rotating equipment such as chillers, gearboxes and pumps and rollers has instilled confidence among leading players in the vibration sensor market.
The PID straightens the PCB at the central lobe and attenuates vibration by pushing and pulling the PCB in the opposite direction after the tungsten balls overcome gravity.
The Rayleigh waves are the most important form for the propagation of traffic induced vibration because at the ground level the amplitude of the Rayleigh waves decreases (due to geometric spreading) as the inverse of the square root of the distance from the source, while the amplitude of body waves decrease as the inverse of the square of the distance from the source (Hajek et al.
Many studies have contributed much to the understanding and prediction of the subjective human body response to vibration [3].
Bearings housings absolute vibration was measured with pjezoaccelerometers 2PH, 3PA, 5PA, 5PH and 8PH (sensitivity 100 mV/g, resonance frequency 22 kHz) in two directions: radial (H) and axial (A) reference to vertical axis of rotation.
These waves are interpreted by a codec that converts them into analog vibration signals that would then pass through an amplifier.
The annulus test section is connected to a vibration module through a rectangular vibration beam.
In this paper, a case study on vibration reduction methodology for a subway station in Shanghai is reported, aiming to answer the need of reducing the vibration impact on a physics laboratory building in close proximity to the station.
The results of the application of vibration assisted drilling with conventional drilling show many positive effects such as reduced cutting forces and wear, longer tool lifetime and better surface quality, improved geometry and dimensions of the hole, better surface quality of the bore, smaller burr formation, etc.
Project managers on the Crossrail scheme are taking every precaution to monitor ground vibration and displacements to ensure the work isn't damaging the historic structures under which it's progressing.
The acquisition includes all Sound & Vibration Technology Ltd.
User comments include one saying it proved "very useful and handy for supporting mechanical engineering tests" while another said they used it for testing vibrations in quadcopters.