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TECHNICAL PAPERS

Elastohydrodynamics and Mechanics of Rectangular Elastomeric Seals for Reciprocating Piston Rods

[+] Author and Article Information
George K. Nikas

Tribology Section, Mechanical Engineering Department, Imperial College of Science, Technology and Medicine, Exhibition Road, London SW7 2BX, England

J. Tribol 125(1), 60-69 (Dec 31, 2002) (10 pages) doi:10.1115/1.1506316 History: Received March 07, 2002; Revised June 26, 2002; Online December 31, 2002
Copyright © 2003 by ASME
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References

Figures

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Basic assembly of the seal (half section shown)
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Forces on an elementary block of the seal
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Flowchart of the model (some intermediate checks not shown)
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EHD pressure at the rod-seal contact (for perfectly smooth surfaces)
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Film thickness map at the rod-seal contact (for perfectly smooth surfaces)
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Seal normal elastic displacement ūseal at the rod-seal contact (for perfectly smooth surfaces)
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Rod normal elastic displacement ūz(rod) at the rod-seal contact (for perfectly smooth surfaces)
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Magnified view of the EHD pressure at the rod-seal contact for rough surfaces (Ra(rod)=0.20 μm,Ra(seal)=1.50 μm)
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Portion of the film thickness map at the rod-seal contact for rough surfaces (see also Fig. 8)
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Film contour maps (rough surfaces). Black areas indicate asperity contact.

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