Computer monitoring technology for operational state and accidental risk of poison-fluid and petroleum depots
| Programmee: | International Collaboration |
| Code: | STCU 4624 |
| Execution period: | 2009 – 2011 |
| Institutions: | Institute of Mathematics and Computer Science, A.N.Podgorny Institute for Mechanical Engineering Problems |
| Project Leader: | Rybakin Boris |
| Participants: | Secrieru Grigore, Shider Natalia, Gutuleac Elena |
| Financed by: | The Science & Technology Center in Ukraine (STCU) |
Summary
The main objective of the project is developing effective methods and software packages for studying the strength of shell structures partially filled with fluid and submerged into ground including the effects of fluid sloshing.
An advanced method and a mathematical apparatus based on "know-how" (a more precise and effective one as compared with current approaches) are proposed for comprehensive description and optimization of the static and dynamic state of fluid-filled shell structures.
A dedicated program module was developed for investigating and predicting the service performance of fluid-filled shell-type systems for a wide range of design parameters and external influences. This module was adapted for usage in certified software packages. It comprises programs for determining: (i) the stress-strained state of structural components under impulse and other dynamic actions; (ii) their natural frequencies in vacuum and liquid with account of fluid sloshing.
The suggested approach is based on reducing the considered problems to boundary integral equations and combining the finite and boundary elements methods. This combination allows to develop new numerical method for structure dynamical analysis, more precise and effective as compared with existing analogues.
The developed method and software package provide a new engineering level for solving critical applied optimal design problems – to mitigate the accident risk and environmental after-effects when operating potentially hazardous shell structures filled with corrosive fluid in critical external exposure and force majeure conditions. For example, this will increase the effectiveness of preventing emergencies during operation and transportation, catastrophes, terrorist acts, etc.
The dedicated software product is a new tool for engineers involved in analyzing strength of fluid-containing shells subjected to static and dynamic loads (shocks, collision during transportation, seismic action, and so forth).
