Transfer-function approximations of the rainflow filter
2002 (English)In: Mechanical Systems and Signal Processing, Vol. 16, 979-989 p.Article in journal (Refereed) Published
The rainflow filter is a non-linear filter which can be used to eliminate small-amplitude oscillations in a signal. In this paper, two approaches for investigation of the filter by means of an approximating transfer function are presented. The estimates are obtained from rainflow-filtered spectral simulations. One method is based on clipped Gaussian processes, the other uses a spline interpolation in the filtered time series. Examples are given for processes with different types of spectral densities. A certain reduction of small-amplitude cycles is obtained by use of the transfer function, but the threshold effect, characteristic for the rainflow filter, is missed.
Place, publisher, year, edition, pages
2002. Vol. 16, 979-989 p.
IdentifiersURN: urn:nbn:se:uu:diva-22070DOI: doi:10.1006/mssp.2001.1446OAI: oai:DiVA.org:uu-22070DiVA: diva2:49843