A model of a breathing crack with relaxation damping

Argatov, Ivan; Popov, Valentin L.; Rademacher, T.; Zehn, Manfred

doi:10.1016/j.ijengsci.2015.05.001

Cited by 3 publications

(1 citation statement)

References 21 publications

(19 reference statements)

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“…Relaxation damping was a phenomenon described recently for contact of two purely elastic bodies with infinite coefficient of friction. A model of a breathing crack with relaxation damping was established [3]. The continuous cracked beam vibration theory and a lumped cracked beam vibration analysis were developed [4].…”

Section: Introductionmentioning

confidence: 99%

Analyzing Vibration Suppression of Nuclear Power Crane with Model Coupling Mechanism and Structure

Qin¹

2016

IJMEA

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The nuclear power crane possesses strict safety requirements. Based on the special structure of its hoisting mechanism, it has two sets of independent lifting ropes to drive a hook synchronously and two pressure buffer devices on both ends of winding system's balancing lever, in order to play protective roles and increase its working reliability. The flexible multi-body dynamics model which coupled mechanism and structure of the nuclear power crane is constructed when broken accident of rope occurs in the lifting process from the ground or smooth lifting. The importance of a buffer damping device installed in crane hoist mechanism has been proved through the vibration simulation about wire rope at the failure state. And the vibration of mechanism and the main girder structure is remitted and controlled at the time of failure in operation. The most important advantage is that has improved the safety of nuclear power crane.

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Section: Introductionmentioning

confidence: 99%