Description: In solid mechanics, in the field of rotordynamics, the critical speed is the theoretical angular velocity that excites the natural frequency of a rotating object, such as a shaft, propeller, leadscrew, or gear. ; Name: crit. speed
Description: Speed of rotation at which the frequency of vibration (or its multiples) corresponds to the rotor resonant (lateral or torsional) ; Name: Critical speed
Description: group of construction elements with the same construction features and the same construction for the transportation of media which are combined due to similar production techniques for the construction admittance examination and quality conformity controls; Name: Construction type conveying element