Sentence examples for below the first critical from inspiring English sources
It is shown that this type of automatic ball balancer can prevent increasing the vibrations of the rotor at the speed range below the first critical speed.
For flutter type instabilities it was found that increasing internal damping is always stabilizing for rotational speeds v below the first critical speed, v1.
Comparing the results with those corresponding to the traditional ball balancer indicates that the new system reduces the vibration amplitude at the range below the first critical speed and increases the stable range of the perfect balancing configuration.
Comparing the results with those corresponding to the traditional ball balancer shows that the new ABB can reduce the vibration amplitude at speeds below the first critical speed and it increases the stable region of the perfect balancing configuration.
Although a traditional ABB can improve the vibration behavior of an unbalanced rotor under proper working conditions, at speeds below the first critical speed, it makes the vibration amplitude of the rotor larger than that of a rotor without an automatic ball balancer.
The reversal magnetization process secondly changes from magnetic wall pinning to incoherent magnetization rotation associated with the particles being below the first critical size at which multi-domain particles turn into single domain ones, where the coercive force is still increased.
The first critical time is dt.
The first critical position.
