Mechanics glossary. 2013.
amplitude — of displacement at a point in a vibrating system is the largest value of displacement that the point attains with reference to its equilibrium position. double amplitude peak to peak amplitude static amplitude stress amplitude … Mechanics glossary
amplitude rate — the ratio of a forced vibration amplitude to the static amplitude … Mechanics glossary
amplitude ratio — the ratio of a forced vibration amplitude to the static amplitude … Mechanics glossary
static — i. Still, at rest, not moving, as in static pressure, static load, etc. ii. Radio or other communication interference mainly the result of the discharge of electricity and appearing as background noise. It consists of amplitude oriented spurious… … Aviation dictionary
Phasor (sine waves) — In physics and engineering, a phase vector ( phasor ) is a representation of a sine wave whose amplitude (A), phase (θ), and frequency (ω) are time invariant. It is a subset of a more general concept called analytic representation. Phasors reduce … Wikipedia
Transmissibility (structural dynamics) — Transmissibility, in the context of Structural Dynamics, can be defined as the ratio of the maximum force (f {max}) on the floor as a result of the vibration of a machine to the maximum machine force (P 0)::TR = frac{f {max{P 0} = R… … Wikipedia
electricity — /i lek tris i tee, ee lek /, n. 1. See electric charge. 2. See electric current. 3. the science dealing with electric charges and currents. 4. a state or feeling of excitement, anticipation, tension, etc. [1640 50; ELECTRIC + ITY] * * *… … Universalium
Atomic force microscope — The atomic force microscope (AFM) or scanning force microscope (SFM) is a very high resolution type of scanning probe microscope, with demonstrated resolution of fractions of a nanometer, more than 1000 times better than the optical diffraction… … Wikipedia
Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after … Wikipedia
Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… … Wikipedia
