Analysis of complex modal instability of a minimal friction self-excited vibration system from multiscale fractal surface topography

Pan, Wujiu; Ling, Liangyu; Qu, Haoyong; Wang, Ming-Hai

doi:10.1016/j.euromechsol.2021.104226

Cited by 15 publications

(4 citation statements)

References 31 publications

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“…Results showed that rougher fractal topography reduced stability of the friction self-excited vibration system. [186] Considering the grip between the tires and the road is closely related to safety issues, several studies have been conducted on tire-road frictional interactions. From a physical perspective, the frictional behavior of sliding rubber on a rough surface is caused by hysteresis with the internal energy dissipation of viscoelastic rubber.…”

Section: Tribologymentioning

confidence: 99%

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Integrated Computational Materials Engineering for Advanced Automotive Technology: With Focus on Life Cycle of Automotive Body Structure

Park

Min

Kim

et al. 2022

Adv Materials Technologies

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Integrated computational materials engineering (ICME) is a simulation‐driven design approach that employs multiscale‐multiphysics modeling and is based on the understanding of process–structure–property–performance relationships. The ICME approach has attracted considerable attention in the automotive industry, considering that it significantly reduces development cost and time in optimization of materials and processes through computational advancement. This study presents a comprehensive review of ICME activities in advanced automotive manufacturing technology, which focuses on the life cycle of the automotive body structure such as structural material design, manufacturing process optimization, and reliability improvement in service quality. Results show that the ICME approach has been widely implemented in automotive manufacturing processes, from development of lightweight materials to performance management. However, further advances and technological strategies should be sought to develop more robust methodologies that can replace conventional experiment‐based design approaches.

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Section: Tribologymentioning

confidence: 99%

“…Results showed that rougher fractal topography reduced stability of the friction self‐excited vibration system. [ 186 ]…”

Section: Integrated Computational Materials Engineering On Reliabilit...mentioning

confidence: 99%

Integrated Computational Materials Engineering for Advanced Automotive Technology: With Focus on Life Cycle of Automotive Body Structure

Park

Min

Kim

et al. 2022

Adv Materials Technologies

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“…As the fractal method can overcome the shortcomings of statistical parameters, it has been widely used to study complex behaviours in the process of friction and wear. Pan et al (2021) revealed the stability and nonlinear characteristics of friction self-excited vibration systems from the perspective of microscopic multi-scale fractal surface topography. They found that the stability of the system was improved with the increase of fractal dimension.…”

Section: Introductionmentioning

confidence: 99%

Tribological effect of ZBUP additive on the running-in quality of sliding bearing by fractal analysis

Wang

Zhou

Zuo

2022

ILT

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Purpose The purpose of this paper is to study the tribological effect of zinc borate ultrafine powder (ZBUP) oil additive on the running-in quality. Design/methodology/approach The running-in quality was assessed by friction coefficient and surface topography. Fractal parameters including fractal dimension, the width of multifractal, the multifractal difference, multifractal parameters, phase trajectory and correlation dimension were used to extract the nonlinear characteristics of surface topography and friction coefficient. Findings When the ZBUP additive was added, the convergence degree of the phase trajectory and the stability of the running in were higher than that of base oil. It indicates that the ZBUP additive can improve the running-in quality of sliding bearing. Besides, the ZBUP additive can shorten the running-in time. A boundary protective film, which has good friction-reducing and anti-wear effects, was generated on the surface when the ZBUP additive was added. Originality/value The results have a great significance to improve the running-in quality and prolong the service life of the sliding bearing.

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“…Fractal dimension, as a scale-independent parameter, does not change with the sampling length and resolution of the devices. It can effectively overcome the shortcomings of statistical parameters and is widely used in the characterization [18], modeling [19], and analysis [20] of nonlinear behavior in the friction and wear process. Running-in is a process in which the fractal dimension of the surface and the correlation dimension of friction signals gradually increase and stabilize.…”

Section: Introductionmentioning

confidence: 99%

Improving running-in quality and efficiency of journal bearing with ZB and SiO₂ nanoparticles as lubricant additive

Zhou¹,

Wang²,

Wang³

et al. 2022

Surf. Topogr.: Metrol. Prop.

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To both improve the running-in quality and efficiency of the journal bearing, the Zinc borate and SiO2 combinations (ZB/SiO2) are used as lubricant additive. Running-in tests were carried out using a ring-on-block tribometer. Multifractal parameters and correlation dimensions were used to extract the nonlinear characteristics of surface topography and coefficient of friction (COF), respectively. It is also used to evaluate the running-in quality of journal bearing. The time of correlation dimension to reach the stable stage is used to evaluate the running-in efficiency. With the addition of ZB/SiO2, the correlation dimension of COF increases and the multifractal parameters of wear surfaces decrease significantly. Compared with the single ZB or SiO2 additive, the running-in efficiency of the ZB/SiO2 additive can be improved by 25% and 40%, respectively. It indicates that the running-in quality and efficiency are improved with the additive of ZB/SiO2. The excellent tribological properties of ZB/SiO2 are attributed to the solid lubricating film formed by ZB, as well as the rolling, self-repairing, and polishing effect of SiO2. The results are of great significance to improving the service reliability and extending the service life of the journal bearing.

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Analysis of complex modal instability of a minimal friction self-excited vibration system from multiscale fractal surface topography

Cited by 15 publications

References 31 publications

Integrated Computational Materials Engineering for Advanced Automotive Technology: With Focus on Life Cycle of Automotive Body Structure

Integrated Computational Materials Engineering for Advanced Automotive Technology: With Focus on Life Cycle of Automotive Body Structure

Tribological effect of ZBUP additive on the running-in quality of sliding bearing by fractal analysis

Improving running-in quality and efficiency of journal bearing with ZB and SiO₂ nanoparticles as lubricant additive

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Analysis of complex modal instability of a minimal friction self-excited vibration system from multiscale fractal surface topography

Cited by 15 publications

References 31 publications

Integrated Computational Materials Engineering for Advanced Automotive Technology: With Focus on Life Cycle of Automotive Body Structure

Integrated Computational Materials Engineering for Advanced Automotive Technology: With Focus on Life Cycle of Automotive Body Structure

Tribological effect of ZBUP additive on the running-in quality of sliding bearing by fractal analysis

Improving running-in quality and efficiency of journal bearing with ZB and SiO2 nanoparticles as lubricant additive

Contact Info

Product

Resources

About

Improving running-in quality and efficiency of journal bearing with ZB and SiO₂ nanoparticles as lubricant additive