- resonant-frequency method
- резонансный метод (при динамическом испытании многолетнемёрзлых грунтов)
Англо-русский строительный словарь. 2013.
resonant-frequency method
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frequency — The number of regular recurrences in a given time, e.g., heartbeats, sound vibrations. [L. frequens, repeated, often, constant] best f. SYN: characteristic f.. characteristic f. f. at which a given neuron responds to the least sound intensity.… … Medical dictionary
Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… … Wikipedia
Rayleigh-Ritz method — In applied mathematics and mechanical engineering, the Rayleigh Ritz method is a widely used, classical method for the calculation of the natural vibration frequency of a structure in the second or higher order. It is a direct variational method… … Wikipedia
Finite-difference time-domain method — Finite difference time domain (FDTD) is a popular computational electrodynamics modeling technique. It is considered easy to understand and easy to implement in software. Since it is a time domain method, solutions can cover a wide frequency… … Wikipedia
High frequency — (HF) radio frequencies are between 3 and 30 MHz. Also known as the decameter band or decameter wave as the wavelengths range from one to ten decameters (ten to one hundred metres). Frequencies immediately below HF are denoted Medium frequency… … Wikipedia
Dunkerley's method — is used in mechanical engineering to determine the critical speed of a shaft rotor system. Other methods include the Rayleigh–Ritz method. Whirling of a shaft No shaft can ever be perfectly straight or perfectly balanced. When an element of mass… … Wikipedia
Dunkerley's Method — is used in mechanical engineering to determine the critical speed of a shaft rotor system. Other methods include the Rayleigh Ritz method.Whirling of a ShaftNo shaft can ever be perfectly straight or perfectly balanced. When an element of mass is … Wikipedia
Tesla coil — at Questacon the National Science and Technology center in Canberra, Australia Uses Application in educational demonstrations, novelty lighting, as well as music Inventor … Wikipedia
Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal … Wikipedia
Radar cross section — (RCS) is a measure of how detectable an object is with a radar. For example a stealth aircraft (which is designed to be undetectable) will have design features that give it a low RCS, as opposed to a passenger airliner that will have a high… … Wikipedia
Mechanical resonance — This article is about mechanical resonance in physics and engineering. For a general description of resonance, see resonance. For mechanical resonance of sound including musical instruments, see acoustic resonance. For the music album by the… … Wikipedia
