Sentence examples for frequency engine from inspiring English sources

In the case of aerospace fixed wing applications, when fluid mounts are used, they are placed in between the engine and the fuselage, and the notch frequency of each fluid mount is tuned to either N1 frequency (engine low speed shaft imbalance excitation frequency) or to N2 frequency (engine high speed shaft imbalance excitation frequency) at the cruise condition.

A highly nonlinear model of the energy flow in a magneto-sensitive (MS) vibration isolation system is developed where it is possible to investigate the influences of MS rubber material parameters; magnetic field strength; MS isolator dimension and position; excitation force magnitude, position and frequency; engine mass, inertia and dimension and, finally, foundation inertance.

Ground testing requires an array of facilities, including ovens for applying high temperatures to materials, acoustic chambers to permit study of the effect of high-frequency engine noise on structures, rigs for measuring landing impacts, and variable-frequency vibrators for investigations of vibration and flutter characteristics of structures.

The results indicate that train-induced ground vibrations at the trainload dominant frequencies are significantly large for both subsonic and supersonic train speeds, and the vibrations from carriage natural frequencies and engine frequencies are minor.

In the aftermath of such outages, the media frequently reports a disturbing frequency of engine generator plant failures.

Constraints are imposed to keep the isolator static and dynamic deflection within the desired limits and a minimum gap between system natural frequency and engine excitation frequency for avoiding possible system resonance.

For example, certain frequencies from engine excitation can be attenuated in the cabin of an aircraft.

As excitation frequencies of engines and propellers fluctuate with changing rpm and natural frequencies of ship and some local structures change with loading conditions, resonance at certain speeds often appears unavoidable.

Variations in chordwise and spanwise position of the wing-mounted engines will change the frequency of the engine-pitch mode, and further affect the low-damping flutter characteristics mentioned above, to which much attention should be paid in engineering application.

f is the emitted turbojet engine frequency.

Engine frequency (left( {{text{rad}}/{text{s}}} right)).