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Helicopter Rotor Blade Shape Optimization Using NURBS for Airfoil Shape Parameterization
(AIP Conference Proceedings, 2009)
An introductory study of helicopter main rotor blade aerodynamic shape optimization problem is presented. Optimization process is carried out in compressible, viscous, quasi-steady fluid flow field of hovering rotor described ...
Effectivity of Hypergeometric Function Application in the Numerical Simulation of the Helicopter Rotor Blades Theory
(Strojniski Vestnik/Journal of Mechanical Engineering, 2010)
Efficiency and justification of hypergeometric functions application in achieving simple formulas used in numerical simulation of helicopter rotor blades theory are presented in this paper. Basic equations of stream field ...
An analysis of the influence of weldment heterogeneity in ferrite-austenite welded structure
(Welding in the World, 2009)
An analysis of the influence of heterogeneity of the ferriteaustenite welded joint on its integrity has been performed. The Charpy specimens, with notch positioned in different regions of welded joint, have been tested ...
Direct-contact condensation heat transfer on downcommerless trays for steam-water system
(Pergamon-Elsevier Science Ltd, Oxford, 2006)
The paper deals with some of the results obtained during experimental research of the direct-contact condensation in cascade column. Downcommerless trays were used to obtain contact between water and steam in DN 300 column ...
The influence of the low-voltage capacitor dielectric material on the capacitive probe response in the nanosecond range
(National Institute of Optoelectronics, 2006)
This paper investigates the influence of the low-voltage capacitor dielectric material on the capacitive probe response in the nanosecond range. It was inferred which types of microscopic material structure, i.e. types of ...
Simulating an ultimate bending moment of ageing hulls: a bulk carrier case study
(University of Montenegro Faculty of Maritime Studies Kotor, 2023)
Ship structural assessments generally consider service loadings anticipated in design phase. Bending moments corresponding to these conditions are then evaluated based on yielding and buckling criteria derived from the ...
A Practical Approach to Bulbous Bow Retrofit Analysis for Enhanced Energy Efficiency
(blueOASIS – Ocean Sustainable Solutions, 2023)
The bulbous bow is a significant feature integrated into ship designs to improve their overall
performance. However, relying solely on original design assumptions may lead to suboptimal results,
potentially hindering the ...