Browsing Research Articles (Mechanical and Aeronautical Engineering) by Author "Heyns, P.S. (Philippus Stephanus)"
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Browsing Research Articles (Mechanical and Aeronautical Engineering) by Author "Heyns, P.S. (Philippus Stephanus)"
Now showing items 1-20 of 98
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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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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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Wannenburg, Johann; Heyns, P.S. (Philippus Stephanus); Raath, Anton D. (Elsevier, 2009)It is common practice in the automotive industry to employ multi-parameter strain-life methods, in combination with dynamic finite element analyses, based on very extensive measurement exercises, to conduct analytical ...
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Ngwangwa, Harry Magadhlela; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2014-06)An artificial neural networks-based methodology for the identification of road surface condition was applied to two different vehicles in their normal operating environments at two mining sites. An ultra-heavy haul truck ...
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Application of computed order tracking, Vold–Kalman filtering and EMD in rotating machine vibration Wang, K.S.; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2011-01)This paper presents a study on rotating machine vibration signals by using computed order tracking, Vold–Kalman filtering and intrinsic mode functions from the empirical mode decomposition method. Through the sequential ...
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Hoseinzadeh, Siamak; Ghasemi, Mohammad Hadi; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2020-11)There is potential in using water energy especially in running river systems in most rural areas, but one of the problems of using such systems is the seasonal changes. In hot and dry seasons the water flow is low and the ...
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Wang, K.S.; Guo, D.; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2012-04)Propagating cracked rotor vibrations may contain substantial information on the rotor crack conditions. Capturing the characteristic vibrations due to the non-stationary response of rotors of which the speed change, is ...
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Chen, Shijun; Desai, Dawood A.; Heyns, P.S. (Philippus Stephanus); Pietra, Francesco (NISC Pty (Ltd) and Informa Limited (trading as Taylor and Francis Group), 2020)A bibliometric analysis of shot peening was carried out to provide insights into academic activities and trends of the research on surface treatment processes from 1997 to 2017 based on the publications collected from the ...
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Wang, K.S.; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2011-04)Order tracking is one of the most important vibration analysis techniques for diagnosing faults in rotating machinery. It can be performed in many different ways, each of these with distinct advantages and disadvantages. ...
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Scheepers, Ronnie; Heyns, P.S. (Philippus Stephanus) (Springer, 2016-09)The prevention of torsional vibration-induced fatigue damage to turbo-generators requires determining natural frequencies by either field testing or mathematical modelling. Torsional excitation methods, measurement ...
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Freyer, Burkhard Heinrich; Heyns, P.S. (Philippus Stephanus); Theron, Nicolaas J. (Springer, 2014-06)Signal processing using orthogonal cutting force components for tool condition monitoring has established itself in literature. In the application of single axis strain sensors however a linear combination of cutting ...
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Talai, Stephen M.; Desai, Dawood A.; Heyns, P.S. (Philippus Stephanus) (Taylor and Francis, 2017-06)This paper investigates the comparison of infrared thermography (IRT) and miniature Deltatron accelerometer sensors in measuring structural vibration characteristics in terms of frequency and displacement, given that of ...
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Grove, A.P.; Van Tonder, F.; Heyns, P.S. (Philippus Stephanus) (Blackwell, 2007-11)This study entails the fatigue analysis of a complex plate-like structure subjected to random loading. The stress and fatigue life assessment is performed by means of experimental strain gauge measurements, finite element ...
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Qambela, Crown James; Heyns, P.S. (Philippus Stephanus); Inglis, Helen Mary (Springer, 2021-06)Laminated composites are complex multifunctional materials and often endure barely visible damage which is characterised by matrix cracks and fiber damage leading to delamination. These composites are often used in ...
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De Waal, R.J.O.; Bekker, A.; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2018-05-28)During ice navigation, blade measurements of ice-induced moments on ship propellers, are challenged by the harsh operating environment. To overcome this problem, shaft line measurements are performed inboard, and the ...
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Booyse, Wihan; Wilke, Daniel Nicolas; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2020-06)A generic framework for prognostics and health monitoring (PHM) which is rapidly deployable to heterogeneous fleets of assets would allow for the automation of predictive maintenance scheduling directly from operational ...
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Hoseinzadeh, Siamak; Bahrami, Amin; Mirhosseini, Seyed Morteza; Sohani, Ali; Heyns, P.S. (Philippus Stephanus) (Elsevier, 2020-04)Please read abstract in the article.
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Barbaryan, T.; Hoseinzadeh, Siamak; Heyns, P.S. (Philippus Stephanus); Barbaryan, M. (Emerald, 2020-02)PURPOSE : This study aims to develop a new design for the fluid-safety valve to make it more environmentally friendly. DESIGN/METHODOLOGY/APPROACH : Computational fluid dynamics is carried out to analyse the behaviour of ...
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Hoseinzadeh, Siamak; Heyns, P.S. (Philippus Stephanus) (American Society of Mechanical Engineers, 2022-07)Thermal power plants play a significant role in generating power, electricity, and energy consumption in the world, especially in developing countries. Therefore, the energy analysis of these power plants is very useful ...
Now showing items 1-20 of 98