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New Finite Element Modeling Approach of a Propagating Shaft Crack
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Transverse shaft cracks are one of the most dangerous malfunctions of the rotating machines, including turboand hydrogenerators, highspeed machine tool spindles, etc. The undetected crack may grow slowly and not disturb ...
Stability of a Cracked Rotor Subjected to Parametric Excitation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It is well known that parametric vibrations may appear during the rotation of a rotor with a cracked shaft. The vibrations occur due to periodic stiffness changes being the result of the crack breathing. A parametrically ...
Parametrically Induced Damping in a Cracked Rotor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A transverse shaft crack in a rotor is usually modeled as a local change in shaft stiffness. This local stiffness change is not constant and varies as a result of a so-called breathing mechanism, explained with periodical ...