Searched for: author%3A%22Lodewijks%2C+G.%22
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van Doorne, Mark (author), Lodewijks, G. (author), Beelaerts van Blokland, W.W.A. (author)
The Automated People Mover (APM) is an important asset for many airports to transport passengers inside or between terminal and satellite buildings An APM system normally runs on fixed schedules throughout the day, which means that the capacity of the APM is pre-determined and not depending on the actual demand. This at times can cause either an...
conference paper 2019
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Alemi, A. (author), Corman, F. (author), Pang, Y. (author), Lodewijks, G. (author)
Wheel impact load detectors are widespread railway systems used for measuring the wheel–rail contact force. They usually measure the rail strain and convert it to force in order to detect high impact forces and corresponding detrimental wheels. The measured strain signal can also be used to identify the defect type and its severity. The...
journal article 2019
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Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author), Pei, Zhiyong (author), Zhu, Ling (author)
The ultimate strength of metallic pipelines will be inevitably affected when they have suffered from structural damage after mechanical interference. The present experiments aim to investigate the residual ultimate bending strength of metallic pipes with structural damage based on large-scale pipe tests. Artificial damage, such as a dent,...
journal article 2019
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Lommen, S.W. (author), Mohajeri, M. (author), Lodewijks, G. (author), Schott, D.L. (author)
Purpose: The development of bulk material handling equipment can be accelerated and made less expensive when testing of virtual prototypes is adopted. However, the modelling of a grab unloader requires a large volume (77 m3) of iron ore pellets, making the computational costs prohibitive. This paper investigates the extent to which the...
journal article 2019
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Alemi, A. (author), Pang, Y. (author), Lodewijks, G. (author)
Wheel defects are detrimental for railway train and track components and should be detected and identified as early as possible. Wheel Impact Load Detector (WILD) is a commercial condition monitoring system used for detecting the defective wheels. This system usually measures the rail strain at different points by multiple sensors. WILD converts...
conference paper 2018
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Dafnomilis, I. (author), Duinkerken, M.B. (author), Junginger, M. (author), Lodewijks, G. (author), Schott, D.L. (author)
This paper investigates the optimization of biomass terminal equipment deployment. A mixed integer linear programming model is developed and applied to minimize the terminal's investment and operational costs related to dedicated and partially used or shared equipment between a terminal's operational steps. The results minimize annual...
journal article 2018
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Lin, X. (author), Negenborn, R.R. (author), Lodewijks, G. (author)
Modern technologies have enabled approaches to estimate freshness of perishable products during production and distribution. This allows supply chains to apply more advanced decision support systems in order to further reduce the loss of perishable products. In this paper we focus on the postharvest scheduling of starch potatoes. In...
journal article 2018
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Luan, X. (author), Wang, Y. (author), De Schutter, B.H.K. (author), Meng, Lingyun (author), Lodewijks, G. (author), Corman, F. (author)
We study the integration of real-time traffic management and train control by using mixed-integer nonlinear programming (MINLP) and mixed-integer linear programming (MILP) approaches. In Part 1 of the paper (Luan et al., 2018), three integrated optimization problems, namely the P<sub>NLP</sub> problem (NLP: nonlinear programming), the P<sub...
journal article 2018
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Luan, X. (author), Wang, Y. (author), De Schutter, B.H.K. (author), Meng, Lingyun (author), Lodewijks, G. (author), Corman, F. (author)
We study the integration of real-time traffic management and train control by using mixed-integer nonlinear programming (MINLP) and mixed-integer linear programming (MILP) approaches. Three innovative integrated optimization approaches for real-time traffic management that inherently include train control are developed to deliver both a train...
journal article 2018
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Luan, X. (author), De Schutter, B.H.K. (author), Corman, F. (author), Lodewijks, G. (author)
In railway operations, when a disruption occurs, train dispatchers aim to adjust the affected schedule and to minimize negative consequences during and after the disruption. As one of the most important components of the railway system, railway signals are used to guarantee the safety of train services. We study the train dispatching problem...
journal article 2018
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Luan, X. (author), De Schutter, B.H.K. (author), van den Boom, A.J.J. (author), Corman, F. (author), Lodewijks, G. (author)
We introduce a distributed optimization method for improving the computational efficiency of real-time traffic management approaches for large-scale railway networks. We first decompose the whole network into a pre-defined number of regions by using an integer linear optimization approach. For each resulting region, a mixed-integer linear...
journal article 2018
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He, D. (author), Pang, Y. (author), Lodewijks, G. (author), Liu, X. (author)
Belt conveyors play an important role in the dry bulk material handling process. Speed control is a promising method of reducing the power consumption of belt conveyors. However, inappropriate transient operations might cause risks like material spillage away from the belt conveyor. The unexpected risks limit the applicability of speed...
journal article 2018
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Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author), Pei, Zhiyong (author), Wu, Weiguo (author)
Numerical investigation is conducted in this paper on both intact and dented seamless metallic pipelines (diameter-to-thickness ratio D/t around 21), deploying nonlinear finite element method (FEM). A full numerical model is developed, capable of predicting the residual ultimate strength of pipes in terms of bending capacity (M<sub>cr</sub>)...
journal article 2018
document
Lommen, S.W. (author), Lodewijks, G. (author), Schott, D.L. (author)
Purpose: Bulk material-handling equipment development can be accelerated and is less expensive when testing of virtual prototypes can be adopted. However, often the complexity of the interaction between particulate material and handling equipment cannot be handled by a single computational solver. This paper aims to establish a framework for...
journal article 2018
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Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author), Pei, Zhiyong (author), Wu, Weiguo (author)
The combination damage induced by mechanical interference, in reality, is more likely to happen. In this paper, numerical models on pipes with combined dent and metal loss in terms of a notch are developed and validated through tests (diameter-to-thickness ratio D/t of test pipes around 21), capable of predicting the residual ultimate...
journal article 2018
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Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author), Pei, Zhiyong (author), Wu, Weiguo (author)
On the basis of an experimental investigation [1], numerical investigation is conducted in this paper on damaged seamless metallic pipelines with metal loss (diameter-to-thickness ratio D/t around 21) through nonlinear finite element method (FEM). Numerical models are developed and validated through test results by using the measured material...
journal article 2018
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Dafnomilis, I. (author), Lodewijks, G. (author), Junginger, M. (author), Schott, D.L. (author)
Wood pellet imports are expected to increase in the European Union and Southeast Asia by 2030, considering pellets are the main feedstock used for co-firing in power plants throughout these regions. Due to the material's physical and biological properties, the equipment at an import terminal need to be different than what is used for other...
journal article 2018
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Lin, X. (author), Negenborn, R.R. (author), Duinkerken, M.B. (author), Lodewijks, G. (author)
Fresh cut flower supply chains are aware of the need for reducing spoilage and increasing customer satisfaction. This paper focuses on a part of the cut rose supply chain, from auction house to several end customers. A new business mode is considered that would allow end customers to subscribe to florists and have a continuous supply of...
journal article 2018
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Cai, J. (author), Jiang, X. (author), Lodewijks, G. (author)
A dent is one of the main structural damages that may affect ultimate strength. In this paper, the residual ultimate strength of dented metallic pipes subjected to a bending moment is quantitatively investigated. The numerical model is developed accounting for the variation of the dent length (l<sub>d</sub>), dent depth (d<sub>d</sub>), dent...
journal article 2018
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Zeng, Q. (author), Beelaerts van Blokland, W.W.A. (author), Santema, S.C. (author), Lodewijks, G. (author)
Current research in the field of performance measurement hasn't presented a rigorous composite indicator for quantifying company performance, with environmental indicators for automobile companies. This paper aims to construct this missing composite indicator. A new approach is developed, including techniques of fuzzy logic, analytic network...
conference paper 2018
Searched for: author%3A%22Lodewijks%2C+G.%22
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