The more data consumers and network users need, the more services they expect, the more
critical speed becomes.
The rotating assembly which rotates at its natural frequency is called
critical speed. The natural frequency and the rotational speed are expressed in hertz and RPM, respectively.
Then there's the theoretical Alfven surface -- a proposed surface, or sheet-like layer where the gradually accelerating solar wind reaches a
critical speed. But that's not what DeForest's team observed.
Furthermore, the low value of the traction force in treatment T1 (Table 1) may have been caused by the increase in the driving wheel slip, which could be justified by the high
critical speed (minimum travel speed of the tractor to use power produced by the engine in relation to its mass), given that in this treatment the speed was 6km [h.sup.-1], which was greater than that in other treatments.
Collision investigator Richard Davies said the
critical speed for the right-hand bend, which was 55 metres before the first tree, was 77mph and that section of road was covered by the national speed limit of 60mph.
"The suite leverages our unparalleled granular data assets and retail and media partner ecosystem--as well as our superior technology, which offers
critical speed and accuracy --to give marketers the most precise end-to-end platform to better direct, optimize and measure the sales impact on every dollar spent and, ultimately, significantly improve return on advertising spend."
The torsional stiffness of the structure has an effect on the
critical speed of flexion-torsion flutter.
[6]The torsional vibration is that shaft undergoes vibration when it reaches
critical speed, so it must be operated under 70% of
critical speed.
Since the nonlinear bifurcation theory is utilized in solving nonlinear vehicle problems [1-3], the study on the calculation of
critical speed gets a great deal of achievements [4, 5].
A modal analysis of the rotor indicated that the shaft first
critical speed modal stiffness was approximately 115,000 lb/in.