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 |
| Project Leader: | Rybakin Boris |
| Participants: | Secrieru Grigore, Shider Natalia, Gutuleac Elena |
| Financed by: | The Science & Technology Center in Ukraine (STCU) |
Summary
The prime 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 will be 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 will be adapted for usage in certified software packages. It will comprise programs for determining the following: (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 approach suggested is based on reducing the problems considered to boundary integral equations and combining the finite and boundary elements methods. The new effective method of numerical solution for obtained singular integral equations will be developed. The elaborated models and methods will be verified with usage of analytical and numerical results known in literature and also by comparison with experimental investigations. The combination of finite and boundary element methods allows elaborate new numerical method for structure dynamical analysis, more precise and effective as compared with existing analogues.
This method and software package will provide a new engineering level for solving critical applied optimal design problems. The purpose of this is 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, transportation, catastrophes, terrorist acts, and so forth.
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).
