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Browsing Research Articles (Mechanical and Aeronautical Engineering) by Title
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Joubert, Johannes Christoffel; Wilke, Daniel Nicolas; Govender, Nicolin; Pizette, Patrick; Tuzun, Ugur; Abriak, Nor-Edine
(Elsevier, 2020-02)
Fully resolved fluid–solid coupling is explored with the gradient corrected weakly compressible SPH methodology being used to simulate an incompressible Newtonian fluid as well as being used to obtain the coupling force ...
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Hamersma, Herman Adendorff; Els, Pieter Schalk
(Inderscience, 2017)
Extensive research on the design and development of antilock brake systems has been done in the past. ABS has been developed not to reduce stopping distance, but rather to stop as quickly as possible whilst maintaining ...
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Aye, S.A. (Sylvester Aondolumun); Heyns, P.S. (Philippus Stephanus)
(Taylor and Francis, 2015-06)
This study develops a novel degradation assessment index (DAI) from acoustic emission signals
obtained from slow rotating bearings and integrates the same into alternative Bayesian methods for
the prediction of remaining ...
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Hoseinzadeh, Siamak; Sohani, Ali; Shahverdian, Mohammad Hassan; Shirkhani, Amin; Heyns, P.S. (Philippus Stephanus)
(Elsevier, 2021-06)
The problem of flowing a Maxwell upper-convected fluid on a horizontal surface is considered here in two conditions. One is the condition in which the plate is made of a porous material, and another one when it is not. For ...
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Steve-Essi, Onyinyechi F.; Idachaba, Francis F.; Popoola, Segun I.; Atayero, Aderemi A.; Adebisi, Bamidele; Nitzsche, Craig
(Springer, 2019-06)
The very limited nature of the GSM spectrum, coupled with the increasing demand by an extending number of subscribers place a strain on the network capacity. This leads to an equally raised number of calls that dropped and ...
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Potgieter, J.; Lombaard, Louis; Hannay, J.; Moghimi, M.A.; Valluri, P.; Meyer, Josua P.
(Elsevier, 2021-12)
Microchannel flow boiling has been the focus of many experimental and numerical investigations due to the high heat transfer coefficients that it can induce. However, experimental research has been limited due to the small ...
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Vlok, Pieter-Jan; Coetzee, Jasper L.
(Southern African Institute for Industrial Engineering, 2000)
Increased competitiveness in the production world necessitates improved maintenance strategies to increase availabilities and drive down cost . The maintenance engineer is thus faced with the need to make more intelligent ...
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Du Rand, Ruan; Jamison, Kevin; Huyssen, Barbara
(Emerald, 2024-12-16)
PURPOSE: The purpose of this paper is to reshape a fast-jet electronics pod’s external geometry to ensure compliance with aircraft pylon load limits
across its carriage envelope while adhering to onboard system constraints ...
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Mahdavi, Mostafa; Sharifpur, Mohsen; Ahmadi, Mohammad Hossein; Meyer, Josua P.
(Springer, 2019-01)
The explanation of abnormal enhancement of transported energy in colloidal nanoparticles in a liquid has sparked much interest in recent years. The complexity comes from the inter-particle phenomenon and cluster formation. ...
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Becker, Carl Martin; Els, Pieter Schalk
(Elsevier, 2022-08)
Vehicle designers use tyre characteristic parameters to parameterize tyre models during the design phase of a vehicle to determine the ride comfort, handling and performance. Tyre data is mostly presented only for new tyres ...
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Eksteen, Johannes Jacobus Arnoldi; Heyns, P.S. (Philippus Stephanus)
(Taylor and Francis, 2016-05)
The conventional iterative learning control (ILC) algorithm for modelbased
ILC of non-linear systems is presented with the use of a nonlinear
inverse model as ILC compensator. The non-linear inverse
model is solved with ...
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Mowat, A.G.B.; Van den Bergh, Wilhelm Johann; Malan, A.G.; Wilke, Daniel Nicolas
(Emerald, 2016-05)
PURPOSE : An area of great interest in current computational fluid dynamics research is that of free-surface modelling (FSM). Semi-implicit pressure-based FSM flow solvers typically involve the solution of a pressure ...
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Le Roux, Willem Gabriel; Swanepoel, Pieter J.
(Wiley, 2019-01)
A new type of engine concept is proposed, namely a rotating disk cylinder engine. Unique secondary rotors with grooves act as guide vanes for a working fluid to power a main rotor with multiple cylindrical pistons. Currently, ...
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Seyyedi, Seyyed Masoud; Hashemi-Tilehnoee, M.; Palomo del Barrio, E.; Dogonchi, A.S.; Sharifpur, Mohsen
(Elsevier, 2023-02)
Please read abstract in the article.
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Hashemi-Tilehnoee, Mehdi; Seyyedi, Seyyed Masoud; Del Barrio, Elena Palomo; Sharifpur, Mohsen
(Elsevier, 2023-12)
Please read abstract in the article.
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Ben Khedher, Nidhal; Mehryan, S.A.M.; Shahabadi, Mohammad; Hussin, Amira M.; Saif Alghawli, Abed; Sharifpur, Mohsen
(Elsevier, 2024-05)
Please read abstract in the article.
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Moghimi Ardekani, Mohammad; Craig, K.J. (Kenneth); Meyer, Josua P.
(American Institute of Physics, 2018-11-08)
This study presents a simulation based optimization study of a multi-tube trapezoidal cavity receiver of a
Linear Fresnel Collector plant in Pretoria, South Africa. A comprehensive optimization study - an optical, thermal ...
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Schmidt, Stephan; Gryllias, Konstantinos C.
(Elsevier, 2021-09)
The order-frequency spectral coherence and its integrated spectra (e.g. improved envelope spectrum, squared envelope spectrum) are some of the most powerful methods for performing fault diagnosis under time-varying operating ...
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Schmidt, Stephan; Gryllias, Konstantinos C.
(Elsevier, 2023-11)
Informative frequency band identification methods are used to automatically design bandpass filters to enhance fault signatures in vibration measurements. Blind and targeted features can be used to guide the frequency band ...
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Molepo, Maketo; Keough, Natalie; Oberholster, Abraham Johannes (Abrie); Hohmann, Erik
(Elsevier, 2024-12)
BACKGROUND :
The placement of clavicle tunnels in coracoclavicular ligament reconstruction is well established, but the optimal position of the coracoid tunnel remains unclear. This study aimed to investigate how the ...