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Prikaz rezultata 11-20 od 46
Active boundary layer control in linear cascades using CFD and artificial neural networks
(Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux, 2014)
Flow field in linear cascades under high subsonic/transonic conditions has been investigated numerically. Active boundary layer control was employed in the form of sources (jets) distributed across the upper surface of the ...
Structural, mechanical and tribological characterization of Zn25Al alloys with Si and Sr addition
(Elsevier Sci Ltd, Oxford, 2014)
The ZA-27 alloy is a zinc-aluminium casting alloy that has been frequently used as the material for sleeves of plain bearings. It has good physical, mechanical and tribological properties. However, one of the major ...
Free vibration control of smart composite beams using particle swarm optimized self-tuning fuzzy logic controller
(Academic Press Ltd- Elsevier Science Ltd, London, 2014)
This paper deals with active free vibrations control of smart composite beams using particle-swarm optimized self-tuning fuzzy logic controller. In order to improve the performance and robustness of the fuzzy logic controller, ...
Austempering Kinetics of Cu-Ni Alloyed Austempered Ductile Iron
(Korean Inst Metals Materials, Seoul, 2014)
The aim of the paper was to investigate the effect of austempering parameters (time and temperature) on the microstructure and mechanical properties of ADI alloyed with 1.5% Cu and 1.6% Ni (in wt.%) in order to establish ...
Creep crack growth properties of P91 and P22 welded joints
(Wiley, Hoboken, 2017)
The ferritic P22 and bainitic-martenstic P91 steel welded joints operating at elevated temperatures are highly vulnerable to premature failure, because microstructure gradients can lead to cracking in the heat-affected ...
Ductile fracture of pipe-ring notched bend specimens - Micromechanical analysis
(Pergamon-Elsevier Science Ltd, Oxford, 2017)
Integrity of pipes is typically assessed by testing fracture mechanics specimens, such as compact tensile (CT) or single-edge notched bending (SENB). However, for some pipe dimensions it is not easy or possible to fabricate ...
Experimental studies on active vibration control of smart plate using a modified PID controller with optimal orientation of piezoelectric actuator
(Sage Publications Ltd, London, 2016)
This paper presents a design, development and experimental verification of an active vibration control system of aluminum plate. The active structure consists of an aluminum rectangular plate as the host structure, strain ...
An attempt to create a standardized (reference) model for experimental investigations on implant's sample
(Elsevier Sci Ltd, Oxford, 2015)
The aim of this study was to determine, evaluate and measure strain of vertically loaded implant using the digital image correlation method. The Straumann (R) dental implant system with the SLActive (R) surface was used ...
Geometry, mechanical and ballistic properties of ADI material perforated plates
(Elsevier Sci Ltd, Oxford, 2015)
In this paper, austempered ductile iron has been evaluated as an alternative to steel for perforated plates applied in the ballistic protection of military vehicles. The austempering was performed in lower and higher ...
Integrity assessment and determination of residual fatigue life of vital parts of bucket-wheel excavator operating under dynamic loads
(Pergamon-Elsevier Science Ltd, Oxford, 2019)
In this paper are presented results of tests and analyses of complex dynamic loads carried out on the bucket-wheel excavator SchRs 650/5x24 Krupp, as well as assessment of service life of vital welded structures of a ...