Tribology in Transmission Systems

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Friction and Tribology".

Deadline for manuscript submissions: 1 December 2026 | Viewed by 634

Special Issue Editor


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Guest Editor
Faculty of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China
Interests: tribology; hydrodynamic lubrication; contact mechanics; wear simulation
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Special Issue Information

Dear Colleagues,

The transmission system plays a central role in modern mechanical equipment. During power transfer, components such as bearings, gears, and pistons experience complex interfacial phenomena—including contact, friction, lubrication, and wear—that govern system efficiency, reliability, and service life. A clear understanding of these interfacial tribological behaviors is therefore essential for designing and manufacturing high-performance transmission systems. When operating under demanding conditions such as low rotational speeds or high loads, the tribological response at component interfaces becomes strongly intertwined with the system’s dynamic behavior. This strong coupling makes it difficult to model and predict the evolution of interfacial behavior in key transmission elements, posing an ongoing challenge for both research and engineering applications.

We aim to develop transient and dynamic tribological models for key transmission components by integrating lubrication, contact mechanics, gear meshing, dynamics, and thermal effects. Advanced numerical methods will be adopted to tackle these challenges. We also seek deeper insight into micro/nano-scale friction and wear mechanisms and their cross-scale links to macroscopic behavior. Contributions in micro/nanotribology, adhesion, and thin-film studies are warmly welcomed.

Dr. Guo Xiang
Guest Editor

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Keywords

  • transmission components
  • tribology
  • dynamics
  • meshing theory
  • mechanism

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Published Papers (1 paper)

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Research

31 pages, 13085 KB  
Article
Contact-Based Wear Modeling of Coated Deep Bores Manufactured by Electrochemical Rifling
by Veselina Krasimirova Dimitrova, Ventsislav Panev Dimitrov and Galya Stoyanova Zdravcheva
Machines 2026, 14(5), 515; https://doi.org/10.3390/machines14050515 - 7 May 2026
Viewed by 344
Abstract
This study presents an analytical–experimental investigation of the mechanical and tribological behaviour of two coating systems applied to deep, internally profiled cylindrical components manufactured via Electrochemical Rifling (ECR): a hard anodised aluminium oxide (AAO) coating on an aluminium alloy and a hard chromium [...] Read more.
This study presents an analytical–experimental investigation of the mechanical and tribological behaviour of two coating systems applied to deep, internally profiled cylindrical components manufactured via Electrochemical Rifling (ECR): a hard anodised aluminium oxide (AAO) coating on an aluminium alloy and a hard chromium coating on alloy steel. Experimental characterisation includes microhardness measurements, coefficient of friction determination, and controlled sliding wear tests. The chromium coating exhibits approximately 2.5 times higher microhardness and about 15% lower average coefficient of friction compared to the anodised aluminium layer, resulting in significantly improved wear resistance. Acceptable engineering agreement is observed between analytical predictions and experimental results. For chromium-coated steel, analytical predictions yield approximately 67,200–72,600 cycles, while the experimentally estimated value is about 36,200 cycles. For anodised aluminium, analytical predictions range from approximately 1688 to 2803 cycles, compared to an experimental value of about 2012 cycles. A conservative reliability-oriented criterion yields service lives of approximately 12,000 cycles for chromium coatings and 1000 cycles for anodised aluminium. Weibull-based analysis (R = 0.95) indicates service life ranges of approximately 9300–10,000 and 230–390 cycles, respectively. Full article
(This article belongs to the Special Issue Tribology in Transmission Systems)
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