Algorithmic Approach To The Assessment Automation of The Pipeline Shut-Off Valves Tightness
How to Cite?
Aslan A. Tatarkanov, Islam A. Alexandrov, Maxim S. Mikhailov, Alexander N. Muranov, "Algorithmic Approach To The Assessment Automation of The Pipeline ShutOff Valves Tightness," International Journal of Engineering Trends and Technology, vol. 69, no. 12, pp. 147-162, 2021. Crossref, https://doi.org/10.14445/22315381/IJETT-V69I12P218
The article analyses the prospects for applied mathematical and algorithmic support usage to study the sealing capability of contact shut-off valve sealing joints. For ensuring the equipment`s operability, it is necessary to determine the required level of sealing forces (contact pressures), on which, among other things, the product weight and size characteristics depend. The research relevance stems from reducing time and material costs at the design phase and the experimental development of pipeline valves. Accordingly, this research aims to develop a methodology for the automated assessment of quality parameters, firstly, the tightness of contact sealing joints to develop proposals for reducing the required level of contact pressures and weight-size characteristics of valves. The paper provides an overview and analytical study of methods for determining surface roughness parameters based on the theory of random functions, discrete, fractal, and discrete-fractal models. In addition, the analysis of the existing theoretical and empirical methods for determining the tightness of contact sealing joints, namely, the reduced (average) gap, porous body permeability, a set of capillaries, percolation, and finite element models, is presented. It is also made clear that the experimental methods. However, unambiguously confirming the operability of certain structures has a limited application in the early stages of the new sealing joint design process since the results depend on specific methods for monitoring tightness used in the products’ experimental development. A mathematical apparatus for modeling asperities and determining the sealing characteristics of sealing joints of shut-off valves is further introduced. The main scientific result of the study is the developed algorithm for evaluating these parameters, particular modules of which can be further implemented as software for automating the assessment of the tightness of contact sealing joints at various phases of valves design. In particular, it is planned to create software for the optimal design of the sealing joint of valves with homogeneous probing in the parameter space through LP?-sequences (Sobol sequence). The developed algorithm allows screening out irrelevant sets of design parameters at the early design phases without the need for their experimental verification, which will result in a decrease in the total time and material resources spent on the development of pipeline valves.
sealing capability, contact sealing joint, shut-off valve, ball valves, pipe system, mathematical modeling, surface roughness models.
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