0
Technical Brief

Numerical Analysis of the Contact Pressure in a Quasi-Static Elastomeric Reciprocating Sealing System

[+] Author and Article Information
Serge Tsala

LaMCoS UMR CNRS5259/INSA-LYON,
20 Avenue Albert Einstein,
Villeurbanne Cedex 69 621, France;
Safran Landing Systems,
9 Rue Antoine de Saint-Exupéry,
Molsheim 67120, France

Yves Berthier

LaMCoS UMR CNRS5259/INSA-LYON,
20 Avenue Albert Einstein,
Villeurbanne Cedex 69 621, France

Guilhem Mollon

LaMCoS UMR CNRS5259/INSA-LYON,
20 Avenue Albert Einstein,
Villeurbanne Cedex 69 621, France

Aude Bertinotti

Safran Landing Systems,
9 Rue Antoine de Saint-Exupéry,
Molsheim 67120, France

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received December 10, 2017; final manuscript received April 24, 2018; published online May 21, 2018. Assoc. Editor: Noel Brunetiere.

J. Tribol 140(6), 064502 (May 21, 2018) (7 pages) Paper No: TRIB-17-1476; doi: 10.1115/1.4040154 History: Received December 10, 2017; Revised April 24, 2018

In this technical brief, we present detailed finite element simulations of a sealing system operating in quasi-static conditions, in the framework of the real piston actuator of a landing gear braking system. Numerical results show two peaks of the contact pressure on the rod, and demonstrate that this contact pressure remains larger than that in the fluid chamber. These numerical results are qualitatively validated by scanning electron microscopy (SEM) observations of a worn sealing system. Overall, this study shows the benefits of numerical simulation in geometrical design of sealing systems targeting a given contact pressure at the rod/seal interface.

FIGURES IN THIS ARTICLE
<>
Copyright © 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Nikas, G. K. , 2010, “Eighty Years of Research on Hydraulic Reciprocating Seals: Review of Tribological Studies and Related Topics Since the 1930s,” Proc. Inst. Mech. Eng. Part J, 224(1), pp. 1–23. [CrossRef]
Martin, J. , 2004, “Etanchéité en mécanique,” Techniques de l'ingénieur Guidage mécanique, b5420, Editions T.I., Paris, France.
Field, G. J. , and Nau, B. S. , 1973, “Film Thickness and Friction Measurements During Reciprocation of a Rectangular Section Rubber Seal Ring,” Sixth BHRA International Conference on Fluid Sealing, Munich, Germany, Feb. 27–Mar. 2.
Rana, A. S. , and Sayles, R. S. , 2005, “An Experimental Study on the Friction Behaviour of Aircraft Hydraulic Actuator Elastomeric Reciprocating Seals,” Tribol. Interface Eng. Ser., 48, pp. 507–515. [CrossRef]
Hörl, L. , Haas, W. , and Nißler, U. , 2009, “A Comparison of Test Methods for Hydraulic Rod Seals,” Sealing Technol., 2009(12), pp. 8–13. [CrossRef]
Salant, R. F. , Maser, N. , and Yang, B. , 2007, “Numerical Model of a Reciprocating Hydraulic Rod Seal,” ASME J. Tribol., 129(1), pp. 91–97. [CrossRef]
Godet, M. , 1984, “The Third-Body Approach: A Mechanical View of Wear,” Wear, 100(1–3), pp. 437–452. [CrossRef]
Kounoudji, K. A. , Renouf, M. , Mollon, G. , and Berthier, Y. , 2016, “Role of Third Body on Bolted Joints' Self-Loosening,” Tribol. Lett., 61(3), pp. 1–8. [CrossRef]
Rivière, J. , Renouf, M. , and Berthier, Y. , 2015, “Thermo-Mechanical Investigations of a Tribological Interface,” Tribol. Lett., 58(3), pp. 48–59. [CrossRef]
Flitney, R. , 2014, Seals and Sealing Handbook, Butterworth-Heinemann, Oxford, UK. [PubMed] [PubMed]
Kanters, A. F. C. , 1990, “On the Calculation of Leakage and Friction of Reciprocating Elastomeric Seals,” Techishe Universiteit Eindhoven, Eindhoven, The Netherlands.
Dipl, B. , Papatheodorou, T. , and Hannifin, P. , 2005, “Influence of Hard Chrome Plated Rod Surface Treatments on Sealing Behavior of Hydraulic Rod Seals,” Sealing Technol., 2005(4), pp. 5–10.
Ho, X. J. , 2013, “Analyse De La Transmission Des Sollicitations Tribologiques Dans Un Presse-Garnitures De Robinet Pour En Maîtriser L'effort De Manœuvre Et L'étanchéité,” Ph.D. thesis, INSA, Lyon, French.
Ochoński, W. , 1988, “Radial Stress Distribution and Friction Forces in a Soft-Packed Stuffing-Box Seal,” Tribol. Int., 21(1), pp. 31–38. [CrossRef]
Békési, N. , and Varadi, K. , 2010, “Wear Simulation of a Reciprocating Seal by Global Remeshing,” Period. Polytech., Mech. Eng., 54(2), pp. 71–75. [CrossRef]
Béséki, N. , Vanadi, K. , and Felhos, D. , 2011, “Wear Simulation of a Reciprocating Seal,” ASME J. Tribol., 133(3), p. 031601. [CrossRef]
Zhang, H. , and Zhang, J. , 2016, “Static and Dynamic Sealing Performance Analysis of Rubber D-Ring Based on FEM,” J Failure Anal. Prev., 16(1), pp. 165–172. [CrossRef]
Mollon, G. , 2015, “A Numerical Framework for Discrete Modelling of Friction and Wear Using Voronoi Polyhedrons,” Tribol. Int., 90, pp. 343–355. [CrossRef]
Mollon, G. , 2018, “A Unified Framework for Rigid and Compliant Granular Materials,” Comput. Part. Mech., epub.
Ali, A. , Fouladi, M. H. , and Sahari, B. , 2010, “A Review of Constitutive Models for Rubber-Like Materials,” Am. J. Eng. Appl. Sci., 3(1), pp. 232–239. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Piston actuator of a landing gear braking system

Grahic Jump Location
Fig. 2

Axisymmetric illustration of the piston actuator

Grahic Jump Location
Fig. 3

Axisymmetric model of the piston in abaqus 6.12

Grahic Jump Location
Fig. 4

Coefficient of friction at different interfaces; in brackets: range of the values tested in the parametric study; in white rectangles: reference value

Grahic Jump Location
Fig. 5

Illustration of the meshed model

Grahic Jump Location
Fig. 6

Evolution of the hydraulic pressure and sliding speed of the seal

Grahic Jump Location
Fig. 7

Summary of the simulation results

Grahic Jump Location
Fig. 8

Experimental validation of the numerical design

Grahic Jump Location
Fig. 9

Evolution of the rod/seal contact pressure during the braking phase with the stiffness of the seal

Grahic Jump Location
Fig. 10

Evolution of the deformed shape and the contact pressure during the braking phase with the friction coefficient

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In