Biotribology and biomechanics are evolving fields that draw from many disciplines. A natural relationship particularly exists between tribology and biology because many biological systems rely on tribophysics for adhesion, lubrication, and locomotion. This leads to many biomimetic inspirations and applications. The current study looks to mimic the function of articular cartilage in purely mechanical systems. To accomplish this goal, a novel coupling of phenomena is utilized. A flexible, porous, viscoelastic material is paired with a hydrodynamic load to assess the feasibility and benefit of a biomimetic thrust bearing. This study presents the dynamic properties of the coupled system, as determined from transient to steady operating states. The results indicate that bio-inspired bearings may have application in certain tribological systems, including biomechanical joint replacements, dampers, flexible rotordynamic bearings, and seals.
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July 2018
Research-Article
Storage and Loss Characteristics of Coupled Poroviscoelastic and Hydrodynamic Systems for Biomimetic Applications
Patrick A. Smyth,
Patrick A. Smyth
Georgia Institute of Technology,
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: pasmyth4@gatech.edu
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: pasmyth4@gatech.edu
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Itzhak Green
Itzhak Green
Georgia Institute of Technology,
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: itzhak.green@me.gatech.edu
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: itzhak.green@me.gatech.edu
Search for other works by this author on:
Patrick A. Smyth
Georgia Institute of Technology,
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: pasmyth4@gatech.edu
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: pasmyth4@gatech.edu
Itzhak Green
Georgia Institute of Technology,
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: itzhak.green@me.gatech.edu
Department of Mechanical Engineering,
Atlanta, GA 30332
e-mail: itzhak.green@me.gatech.edu
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received October 17, 2017; final manuscript received December 17, 2017; published online February 9, 2018. Assoc. Editor: Min Zou.
J. Tribol. Jul 2018, 140(4): 041703 (8 pages)
Published Online: February 9, 2018
Article history
Received:
October 17, 2017
Revised:
December 17, 2017
Citation
Smyth, P. A., and Green, I. (February 9, 2018). "Storage and Loss Characteristics of Coupled Poroviscoelastic and Hydrodynamic Systems for Biomimetic Applications." ASME. J. Tribol. July 2018; 140(4): 041703. https://doi.org/10.1115/1.4038958
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