What is it about?
The valve time-dependent measurements needed to be referred to the camshaft angular position in order to analyse the data in the angular domain, as usually done for rotating machines. To this purpose the camshaft was fitted with a zebra tape whose dark and light stripes were tracked by means of an optical probe.
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Why is it important?
The identification of the zebra tape was performed by means of the original and practical procedure. The method consists of three main steps: namely, an ad-hoc test corresponding to special operating conditions, the computation of the instantaneous angular speed, and the final association of the stripes with the corresponding shaft angular position. The results reported in the paper demonstrate the suitability of the simple procedure for the zebra tape identification performed with the final purpose to implement a computed order tracking technique for the data analysis.
Read the Original
This page is a summary of: Zebra tape identification for the instantaneous angular speed computation and angular resampling of motorbike valve train measurements, Mechanical Systems and Signal Processing, February 2014, Elsevier, DOI: 10.1016/j.ymssp.2012.11.009.
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