This paper presents an analytical model and its experimental validation for assessing friction forces in reciprocating seals for single and double rod pneumatic cylinders. The contributions of individual piston and rod seals are analyzed using a combination of analytical and experimental approaches. The former entails a friction force formulation based on a lumped parameter seal model, whereas the latter involves carrying out measurements on complete actuators. Selecting appropriate test conditions made it possible to analyze separately the contributions that individual seals make to the overall friction measured on complete actuators. Analysis results were validated by means of friction measurements on the actuators seals, which were tested individually in specific devices. The experimental results were interpreted on the basis of the proposed analytical formulation and confirmed its validity.

References

References
1.
Muller
,
H. K.
, and
Nau
,
B. S.
,
1998
,
Fluid Sealing Technology: Principles and Applications
,
Marcel Dekker
,
New York
.
2.
Belforte
,
G.
,
D'Alfio
,
N.
, and
Raparelli
,
T.
,
1989
, “
Experimental Analysis of Friction Forces in Pneumatic Cylinders
,”
J. Fluid Control
,
20
(
1
), pp.
42
60
.
3.
Schroeder
,
L. E.
, and
Singh
,
R.
,
1993
, “
Experimental Study of Friction in a Pneumatic Actuator at Constant Velocity
,”
ASME J. Dyn. Syst., Meas., Control
,
115
(
3
), pp.
575
577
.
4.
Kazama
,
T.
, and
Fujiwara
,
M.
,
1999
, “
Experiment on Frictional Characteristics of Pneumatic Cylinders
,” 4th
JHPS
International Symposium on Fluid Power, Tokyo, pp.
453
458
.
5.
Belforte
,
G.
,
Mattiazzo
,
G.
,
Mauro
,
S.
, and
Tokashiki
,
L. R.
,
2003
, “
Measurement of Friction Force in Pneumatic Cylinders
,”
Tribotest J.
,
10
(
1
), pp.
33
48
.
6.
Belforte
,
G.
,
Manuello
,
A.
, and
Mazza
,
L.
,
2013
, “
Test Rig for Friction Force Measurements in Pneumatic Components and Seals
,”
Proc. Inst. Mech. Eng. Part J
,
227
(
1
), pp.
43
59
.
7.
Bhaumik
,
S.
,
Kumaraswamy
,
A.
, and
Guruprasad
,
S.
,
2013
, “
Design and Development of Test Rig for Investigation of Contact Mechanics Phenomena in Reciprocating Hydraulic Seals
,”
Procedia Eng.
,
64
, pp.
835
843
.
8.
Pinedo
,
B.
,
Conte
,
M.
,
Perez
,
I.
,
San Martin
,
M.
,
Gomez-Acedo
,
E.
, and
Igartua
,
A.
,
2013
, “
New High Performance Test Rig for Sealing Systems Characterization
,”
5th World Tribology Congress
, Torino, Italy, Sept. 8–13, Paper No. 102.
9.
Wassink
,
D. B.
,
Lenss
, V
. G.
,
Levitt
,
J. A.
, and
Ludema
,
K. C.
,
2001
, “
Physically Based Modeling of Reciprocating Lip Seal Friction
,”
ASME J. Tribol.
,
123
(
2
), pp.
404
412
.
10.
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
.
11.
Pinedo
,
B.
,
Aguirrebeita
,
J.
,
Conte
,
M.
, and
Igartua
,
A.
,
2014
, “
Tri-Dimensional Eccentricity Model of a Rod Lip Seal
,”
Tribol. Int.
,
78
, pp.
68
74
.
12.
Achenbach
,
M.
,
2002
, “
Sealing-Friction Model
,”
12th International Sealing Conference
, Stuttgart, Germany, pp.
499
512
.
13.
Achenbach
,
M.
, and
Papatheodorou
,
T.
,
2008
, “
Modeling of Friction Phenomena in Pneumatic Cylinders
,”
6th International Fluid Power Conference
, Dresden, Germany, pp.
279
288
.
14.
Murrenhoff
,
H.
, and
Heipl
,
O.
,
2011
, “
Rate- and State-Dependent Friction Model for Elastomeric Seals
,”
8th International Symposium on Fluid Power
, Okinawa, Japan, pp.
248
253
.
You do not currently have access to this content.