@article {Arsic:2016:0736-2935:607,
title = "Rotational Analysis in the Angular Domain",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "2016",
volume = "252",
number = "2",
publication date ="2016-06-13T00:00:00",
pages = "607-614",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2016/00000252/00000002/art00070",
keyword = "41.1, 44",
author = "Arsic, Dejan",
abstract = "Powertrains usually consist of various rotating parts, e.g. clutch, gearbox, and crankshaft. Rotational and torsional vibration propagates across the entire powertrain. It is transmitted to connected components, creating unwanted noises and vibrations. Using a precise Tacho signal allows
to determine the torsional vibration of components and their propagation exactly. For instance, the engine-transmission-coupling can be examined for unexpected phenomena. Here, the rotational vibration of one component is transmitted through the torsional damper which remains above the firing
order. This propagation of the vibration should obviously be limited. The signal is transformed into the angular domain, which is required to analyze events appearing only at certain angular positions, such as the combustion process. The duty-cycle-trigger pulse signal is applied in addition
to both the actual signal to be analyzed and to the components' rotational speed. For the crank-angle-based analysis, the signal to be investigated is aligned either to an individual or to multiple duty cycles, i.e. one revolution of the system allowing the unwanted phenomena to be assigned
to specific angular positions. Hence, the current state of the system is taken into account so that a knocking induced by a damaged gear wheel can be identified precisely.",
}