To explore the recursive characteristics of a running-in attractor, recurrence plot (RP) and recursive parameters are used to investigate the dynamic features of the structure. The running-in attractor is constructed based on friction noise signals generated from the ring-on-disk wear experiments. The RPs of the running-in attractor are then reproduced in a two-dimensional space. Recursive parameters, recurrence rate (RR), entropy (ENTR), and trend of recurrence (RT) are calculated. Results show that the RP evolves from a disrupted pattern to a homogeneous pattern and then returns to a disrupted pattern in the entire wear process, corresponding to the “formation–stabilization–disappearance” stage of the running-in attractor. The RR and ENTR of the running-in attractor sharply increase at first, remain steady, and then sharply decrease. Moreover, the inclination of RT in the normal wear process is smaller than those in the other two processes. This observation reveals that the running-in attractor exhibits high stability and complexity. This finding may contribute to the running-in state identification, process prediction, and control.
Recursive Characteristics of a Running-in Attractor in a Ring-on-Disk Tribosystem
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received February 22, 2018; final manuscript received July 21, 2018; published online August 24, 2018. Assoc. Editor: Daejong Kim.
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Ding, C., Zhu, H., Jiang, Y., Sun, G., and Wei, C. (August 24, 2018). "Recursive Characteristics of a Running-in Attractor in a Ring-on-Disk Tribosystem." ASME. J. Tribol. January 2019; 141(1): 011604. https://doi.org/10.1115/1.4041018
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