Experimental investigation on identifying friction state in lubricated tribosystem based on friction-induced vibration signals. (April 2020)

• Record Type: Journal Article
• Authors: Xing, Pengfei; Li, Guobin; Gao, Hongtao; Wang, Guoyou
• Is Part Of: Mechanical systems and signal processing. Volume 138(2020)
• Publication Date: 2020-04
• Subjects: Friction-induced vibration -- Lubricated tribosystem -- Friction state -- Identifying -- Experimental investigation; Structural dynamics -- Periodicals; Vibration -- Periodicals; Constructions -- Dynamique -- Périodiques; Vibration -- Périodiques; Structural dynamics; Vibration; Periodicals; 621
• DOI: 10.1016/j.ymssp.2019.106590
• Languages: English
• ISSNs: 0888-3270

Abstract

Highlights: FIV under a lubricated frictional contact condition is investigated. Introducing the harmonic wavelet packet transform to extract FIV signals. The "strong contact-induced vibration response" in FIV signals are used to identify the contact condition. The "weak contact-induced vibration response" in FIV signals are used to identify the friction condition. Abstract: The aim of the present paper is to indicate how to identify friction state by the friction-induced vibration in a lubricated tribosystem. The friction-induced vibration signals with two different amplitude-frequency characteristics were respectively extracted from the measured vibration signals and their relationships with friction state were discussed. The results show that the friction-induced vibration is closely related to the friction state and can be used to identify the friction state. Therefore, the proposed approach can be a reliable tool for identifying friction state.