Abstract
Tire Inflation Pressure Loss Rate (IPLR) test is a widely accepted test method to evaluate the tire pressure retention performance, which helps increase fuel economy and prevent premature tire failures. At present, an IPLR test usually lasts for several months, which greatly reduces the efficiency of relevant research. Several analytical models are available to estimate the IPLR value, however, it mainly considers the gauge and permeability of innerliner, ignoring the effect of other components and detailed tire structure. In order to perform a thorough study of tire pressure loss process, a finite element model was developed with the material input of both mechanical and permeability properties of various rubber compounds and tire geometry input. A creative method, ideal material method, was proposed to describe the transient pressure loss process. Through this solution, a finite element model of Passenger Car Radial tire is established to predict IPLR, with a difference from the experimental result less than 5 %. Based on the model, air diffusion path in the tire is studied to better understand the process, which explains the bubble location in tire immersion tests. The effect of innerliner parameters, including halobutyl content, gauge and ending length of innerliner, on IPLR has been investigated based on simulation models.
Similar content being viewed by others
Abbreviations
- A:
-
area, m2
- C:
-
mass concentration, mol/m3
- D:
-
diffusivity, m2/s
- J:
-
mass flux, mol/m2 s
- N:
-
amount of substance, mol
- P:
-
partial pressure, Pa
- R:
-
gas constant
- S:
-
solubility, mol/m3 Pa
- T:
-
temperature, K
- t:
-
time, s
- V:
-
volume, m3
- x:
-
distance, m
- φ :
-
normalized concentration, 1/Pa
References
Banks, S. A., Brzenk, F., Rae, J. A. and Hwa, C. S. (1965). Effect of intracarcass pressure buildup on tubeless tire performance. Rubber Chemistry and Technology 38, 1, 158–169.
Coddington, D. M. (1979). Inflation pressure loss in tubeless tires — Effects of tire size, service, and construction. Rubber Chemistry and Technology 52, 5, 905–919.
Costemalle, B. (1992). Tire pressure loss and intracarcass pressure modeling. Tire Science and Technology 20, 4, 200–211.
Crank, J. (1979). The Mathematics of Diffusion. Oxford University Press. London, UK.
Ellwood, K. R. J. (2005). A finite element model for oven aged tires. Tire Science and Technology 33, 2, 103–119.
Gillen, K. T., Wise, J., Jones, G. D., Causa, A. G., Terrill, E. R. and Borowczak, M. (2012). Final Report on Reliability and Lifetime Prediction. Office of Scientific & Technical Information Technical Reports.
Hibbitt, Karlsson and Sorensen (2001). Abaqus/Explicit: User’s Manual. Hibbitt, Karlsson and Sorenson Incorporated.
Kerchman, V. (2011). Gas transport in the tire aging test and intracarcass pressure issues. Tire Science and Technology 39, 2, 95–124.
Martens, J. E., Terrill, E. R., Napier, R. C. and Waddell, W. H. (2015). Effect of measurement frequency and test duration on the inflation pressure loss rate of radial medium truck tires. Tire Science and Technology 43, 4, 325–337.
Uzina, R. and Basin, V. (1958). Gas Permeability of Rubber Cord Systems. Kauchuk i Rezina, 17, 11.
Van Amerongen, G. (1964). Diffusion in elastomers. Rubber Chemistry and Technology 37, 5, 1065–1152.
Waddell, W. H. (2012). Effect of inflation pressure loss rates on tire rolling restistance, vehicle fuel economy, and CO2 emissions-global aanalysis. KGK. Kautschuk, Gummi, Kunststoffe, 65, 45–51.
Wang, G. (2014). Study on relationship between grounding characteristics and rolling resistance of radial tire. J. Mechanical Engineering, 50, 186–192.
Acknowledgement
Thanks to Bentil Asafo-Duho, (PhD. Candidate at the School of Automotive and Traffic Engineering, Jiangsu University) for his assistance in improving the Language. Appreciations to ExxonMobil’s Engineer, Owen for his help during the IPLR and Rubber permeability test.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liang, C., Zhu, X., Li, C. et al. Simulating Tire Inflation Pressure Loss Rate Test by the Ideal Material Method. Int.J Automot. Technol. 20, 789–800 (2019). https://doi.org/10.1007/s12239-019-0074-z
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12239-019-0074-z