Results 11 to 20 of about 3,278,763 (292)

Modelling in the evaluation of a manufacturing strategy [PDF]

open access: yes, 1994
This thesis describes research that has developed the principles of a modelling tool for the analytical evaluation of a manufacturing strategy. The appropriate process of manufacturing strategy formulation is based on mental synthesis with formal ...
Baines, Tim S.
core   +7 more sources

Laminar and turbulent analytical dam break wave modelling on dry-downstream open channel flow [PDF]

open access: yes, 2018
YesA dam break wave caused by the discontinuity in depth and velocity of a flow is resulted from instantaneous release a body of water from a channel and classified naturally as a rapidly varied unsteady flow.
Lateef, A.O.A., Pu, Jaan H., Taha, T.
core   +8 more sources

Spatter Formation and Splashing Induced Defects in Laser-Based Powder Bed Fusion of AlSi10Mg Alloy: A Novel Hydrodynamics Modelling with Empirical Testing

open access: yesMetals, 2021
Powder spattering and splashing in the melt pool are common phenomena during Laser-based Powder Bed Fusion (LPBF) of metallic materials having high fluidity. For this purpose, analytical and computational fluid dynamics (CFD) models have been deduced for
Asif Ur Rehman   +6 more
doaj   +1 more source

Modelling of cutting fibrous composite materials: current practice [PDF]

open access: yes, 2015
Using fibre reinforced polymers (FRP) is increasing across many industries. Although FRP are laid-up in the near-net shape, several cutting operations are necessary to meet quality and dimensional requirements.
Kahwash, Fadi   +5 more
core   +1 more source

Free Natural Frequency Analysis of an FG Composite Rectangular Plate Coupled with Fluid using Rayleigh–Ritz Method [PDF]

open access: yesMechanics of Advanced Composite Structures, 2014
This study investigates natural frequency analysis of an FG composite rectangular plate partially contacting with a bounded fluid. The material properties are assumed to be varying continuously through the thickness direction according to a simple power ...
Korosh Khorshidi, Ali Bakhsheshy
doaj   +1 more source

ANALYTIC MODELING OF STARSHADES [PDF]

open access: yesThe Astrophysical Journal, 2011
External occulters, otherwise known as starshades, have been proposed as a solution to one of the highest priority yet technically vexing problems facing astrophysics - the direct imaging and characterization of terrestrial planets around other stars. New apodization functions, developed over the past few years, now enable starshades of just a few tens
openaire   +2 more sources

Experimental characterization and modeling of the inter-ply sliding behavior of unidirectional prepreg in the preforming process

open access: yesMaterials Research Express, 2023
The inter-ply sliding behavior is one of the important factors affecting the quality of carbon fiber composite products. In this paper, the inter-ply sliding behavior of the unidirectional prepreg was investigated for the preforming process.
Zhefu Li   +4 more
doaj   +1 more source

Validation of a Theoretical Model for Laser Welding Thermal Field by Multi-Physics Numerical Simulation

open access: yesMetals, 2023
Theoretical models based on solutions of the conduction heat transfer equation have been widely proposed to calculate the thermal fields generated during laser welding, revealing simplification benefits and limitations in the accuracy of the results.
Fabio Giudice, Andrea Sili
doaj   +1 more source

Analytical and Experimental Investigations of Novel Maglev Coupling Based on Opposed Halbach Array for a 2D Valve

open access: yesActuators, 2021
In this paper, a novel maglev coupling based on the opposed Halbach array is proposed as the interface between the linear electro-mechanical converter and 2D valve body.
Bin Meng   +4 more
doaj   +1 more source

Thermodynamic Analysis of Compressed Air Energy Storage (CAES) Reservoirs in Abandoned Mines Using Different Sealing Layers

open access: yesApplied Sciences, 2021
Million cubic meters from abandoned mines worldwide could be used as subsurface reservoirs for large scale energy storage systems, such as adiabatic compressed air energy storage (A-CAES).
Laura Álvarez de Prado   +5 more
doaj   +1 more source

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