Stochastic model and reliability assesment applied for platinum ore desintegration process

0324895 - ÚTAM 2009 RIV CZ eng C - Conference Paper (international conference)
Frydrýšek, K. - Marek, Pavel
Stochastic model and reliability assesment applied for platinum ore desintegration process.
[Pravděpodobnostní model a určení spolehlivosti aplikované na desintegraci platinové rudy.]
Engineering Mechanics 2009. Praha: ÚTAM, 2009 - (Náprstek,, J.; Fischer, C.), s. 299-309. ISBN 978-80-86246-35-2.
[Engineering mechanics 2009. Svratka (CZ), 11.05.2009-14.05.2009]
R&D Projects: GA ČR(CZ) GA103/07/0557
Institutional research plan: CEZ:AV0Z20710524
Keywords : Disintegration * SBRA method * Platinum ore
Subject RIV: JM - Building Engineering

This paper focuses on a numerical analysis of the hard rock (ore) disintegration process. The bit moves into the ore (i.e. mechanical contact with friction) and subsequently disintegrates it. The disintegration (i.e. stress-strain relationship, reaction forces and fracture of the ore etc.) is solved via the FEM in combination with SBRA (Simulation-Based Reliability Assessment) Method. The ore is disintegrated by deactivating the FE which satisfy the fracture condition. Material of the ore (i.e. yield stress, fracture limit, etc.), is given by stochastic inputs. The results are compared with experiments.

Příspěvek je zaměřen na numerickou analýzu dezintegrace platinové rudy. Dezintegrace platinové rudy je řešena metodou konečných prvků v kombinaci s metodou SBRA. Materiál, jimž je ruda tvořena je popsán pomocí náhodných vstupních veličin. Výsledky výpočtu jsou porovnány s výsledkem experimentů.
Permanent Link: http://hdl.handle.net/11104/0172483