Journal
TRIBOLOGY TRANSACTIONS
Volume 58, Issue 2, Pages 357-364Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10402004.2014.971996
Keywords
Particle Erosion; Bionic Coupling; Scorpion; Anti-Erosion Mechanism
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Funding
- National Natural Science Foundation of China [51325501, 51175220, 51205161, 51290292]
- Specialized Research Fund for the Doctoral Program of Higher Education [20100061110023, 20120061120051]
- China Postdoctoral Science Foundation on the 51th Grant Program [2012M511345]
- Projects of Cooperation and Innovation to National Potential Oil and Gas for Production and Research [OSR-04-04]
- Youth Scientific Research Fund of Jilin Province [20130522066]
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To improve the particle erosion resistance of mechanical surfaces, a bionic coupling method inspired by the morphology and flexibility of desert scorpion (Androctonus australis) carapace was proposed in this study. The finite element method based on ANSYS/FLUENT was applied to examine the erosion resistance of a bionic V-shaped model. Subsequently, an experimental research was carried out to compare the particle erosion resistance performance of three types of specimens, namely, smooth, bionic V-shaped, and bionic V-shaped and flexibility coupling. Surface erosion microstructure was also examined under a stereoscopic microscope and a scanning electron microscope to characterize erosive damage. The anti-erosion property of the coupling and V-shaped specimens increased by approximately 74.7 and 57.4% compared to that of the smooth specimen in a 10-min test. The mechanism of particle erosion resistance is also discussed in detail. The particle impact marks that were distributed on the surfaces of both of the V-shaped and coupling specimens were regular.
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