Körper mit einseitiger fester Einspannung für bis in den überkritischen Drehzahlbereich drehende Teile eines Systems und Verfahren zur Herstellung der Körper

摘要

The invention relates to bodies fixedly restrained at one end while mounted so as to resist movement and tilting for parts of a system (22) that rotate into the supercritical speed range and to a method for producing the bodies, wherein the body (2) represents a hollow body of a tubular form comprising a specified substance, the flexural vibrations of which that occur during rotation are caused by unbalance U resulting from production and mounting inaccuracies and owing to a local difference between the geometrical axis of symmetry (75) of the hollow body (2) and the axis of rotation (76) of the hollow body (2), and which has a closed-off hollow space (7), which is symmetrical with respect to the geometrical axis of symmetry (75) of the hollow body (2) and is also closed towards its end faces (8, 9). In the hollow space (7) of the hollow body (2) that is fixed and mounted at one end and is formed as at least one balancing chamber (70, 71), at least one free-flowing formless substance (4) with a defined mass ms has been introduced into the balancing chamber (71), partially filling the balancing chamber (71), and the mass ms of the free-flowing formless substance (4) introduced is defined in such a way that a vibrational damping with respect to the hollow body can be achieved in the subcritical and critical speed ranges and a damage-free resonance penetration can be achieved in the critical speed range and that the distribution of the substance (4) in the supercritical speed range that is caused by the effect of the unbalance U of the hollow body (2) compensates in a self-stabilizing manner for the effect of the unbalance U while allowing for a specified ratio between the mass ms of the substance (4) and the unbalance U in accordance with the equation (V).