{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,22]],"date-time":"2025-11-22T17:03:15Z","timestamp":1763830995062,"version":"3.37.3"},"reference-count":20,"publisher":"World Scientific Pub Co Pte Ltd","issue":"04","funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51775546"],"award-info":[{"award-number":["51775546"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012246","name":"Priority Academic Program Development of Jiangsu Higher Education Institutions","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100012246","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Bifurcation Chaos"],"published-print":{"date-parts":[[2019,4]]},"abstract":"<jats:p> The running-in attractor is a chaotic attractor with stability, which forms in the running-in process. Its \u201cformation-stabilization-disappearance\u201d stage can reflect the dynamic features of the nonlinear friction system. To reveal the dynamic features and evolution of the running-in attractor, in this work, wear experiments are implemented on a ring-on-disk tribometer. The friction coefficient signals are then extracted and reconstructed. Based on the reconstructed matrix of the friction coefficient signals, the convergence (CON) and standard deviation of the distance matrix (STD) are proposed. Results show that CON evolves from an increase to the stabilization and then to a decrease. STD presents an inverse variation tendency, evolving from a decrease to the stabilization and then to an increase. A larger CON indicates higher convergence and a more complex friction system. A smaller STD indicates a more stable friction system. These two new characteristic parameters effectively exhibit the dynamic behavior of the wear process. <\/jats:p>","DOI":"10.1142\/s0218127419500445","type":"journal-article","created":{"date-parts":[[2019,4,22]],"date-time":"2019-04-22T06:22:39Z","timestamp":1555914159000},"page":"1950044","source":"Crossref","is-referenced-by-count":17,"title":["Characteristic Parameters and Evolution of the Running-in Attractor"],"prefix":"10.1142","volume":"29","author":[{"given":"Cong","family":"Ding","sequence":"first","affiliation":[{"name":"School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0737-1715","authenticated-orcid":false,"given":"Hua","family":"Zhu","sequence":"additional","affiliation":[{"name":"School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China"}]},{"given":"Guodong","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China"}]},{"given":"Yu","family":"Jiang","sequence":"additional","affiliation":[{"name":"School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China"}]},{"given":"Chunling","family":"Wei","sequence":"additional","affiliation":[{"name":"School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China"}]}],"member":"219","published-online":{"date-parts":[[2019,4,22]]},"reference":[{"key":"S0218127419500445BIB001","doi-asserted-by":"publisher","DOI":"10.1007\/s40544-017-0161-y"},{"key":"S0218127419500445BIB002","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevA.33.1134"},{"key":"S0218127419500445BIB003","first-page":"405","volume":"5","author":"Ge S. 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