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Yan, Y. (author), Pargalgauskas, S. (author), Helmons, R.L.J. (author), Schott, D.L. (author)A convex pattern surface is proposed and optimized to mitigate the sliding wear of bulk handling equipment caused by interaction with bulk solids. This work investigates the effectiveness of the convex pattern surface on wear reduction during interactions with non-spherical particles. Multiple representative particles, obtained through a...journal article 2024
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Azevedo Vasconcelos, A.C. (author), Valiya Valappil, S. (author), Schott, D.L. (author), Jovanova, J. (author), Aragon, A.M. (author)Underwater noise resulting from the monopile driving process can cause severe damage to marine wildlife, such as hearing injury, behavioral disturbance, or even death. Although current noise-attenuation techniques used in this process have shown a significant noise reduction at high frequency ranges, mitigating low-frequency noise is still...journal article 2024
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Roeplal, R.N. (author), Pang, Y. (author), Schott, D.L. (author)Bed permeability is a crucial factor in blast furnace performance which depends on the material distribution achieved through charging. Since a homogeneous bed of pellet and sinter is recommended, it is crucial to understand whether segregation of the pellet-sinter mixture occurs during charging. The Discrete Element Method is useful in this...journal article 2024
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Chen, Qianyi (author), Schott, D.L. (author), Jovanova, J. (author)Soft grippers show adaptability and flexibility in grasping irregularly shaped and fragile objects. However, the low loading capacity and less deformation limit the soft gripper for developing large-scale applications. To overcome these limitations, we propose a new concept of a soft actuator with engineered smart particles. The proposed soft...journal article 2024
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Emmerink, J.V. (author), Hadi, A.H. (author), Jovanova, J. (author), Cleven, Chris (author), Schott, D.L. (author)To improve the understanding of the mixing performance of double shaft, batch-type paddle mixers, the discrete element method (DEM) in combination with a Plackett–Burman design of experiments simulation plan is used to identify factor significance on the system’s mixing performance. Effects of several factors, including three material properties...journal article 2023
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Fransen, M.P. (author), Langelaar, Matthijs (author), Schott, D.L. (author)In design optimization of bulk handling equipment (BHE) we generally focus on the mean performance of the equipment. However, granular materials behave stochastic due to irregularities in particle shape and size which leads to stochastic performance of the equipment. To include the stochastic performance we propose robust metamodel-based...journal article 2023
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Hadi, A.H. (author), Roeplal, R.N. (author), Pang, Y. (author), Schott, D.L. (author)Segregation control is a challenging yet crucial aspect of bulk material handling processes. The discrete element method (DEM) can offer useful insights into segregation phenomena, provided that reliable models are developed. The main challenge in this regard is finding a good balance between including particle-level details and managing the...journal article 2023
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Yan, Y. (author), Helmons, R.L.J. (author), Carr, Michael (author), Wheeler, Craig (author), Schott, D.L. (author)A convex pattern surface has been proposed and optimized to reduce sliding wear of bulk handling equipment by adjusting the flow behaviour of bulk material. This study aims at modelling the surface deformation of the convex pattern sample to investigate how effectively the sample reduces sliding wear. Archard wear model and a deformable...journal article 2023
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Yan, Y. (author), Helmons, R.L.J. (author), Schott, D.L. (author)The pin-on-disc test is a standard sliding wear test used to analyse sliding properties, including wear contour and wear volume. In this study, long-term laboratory test performance is compared with a short-term numerical model. A discrete element method (DEM) approach combined with an Archard wear model and a deformable geometry technique is...journal article 2022
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Yan, Y. (author), Helmons, R.L.J. (author), Schott, D.L. (author)Sliding wear of bulk handling equipment (e.g., shovel bucket, mill and transfer chute) can be dramatically reduced by using a convex pattern surface compared to a flat surface, by adjusting the flow behavior of particles moving along the convex pattern surface. To study the effect of particle size relative to the dimensions of the convex pattern...journal article 2022
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Buirma, M.I.M.J. (author), Vleugel, J (author), Pruyn, J.F.J. (author), Doedee, Vincent (author), Schott, D.L. (author)The International Maritime Organisation (IMO) calls for the maritime industry to restrict its CO2 emissions by −40% (IMO2030) and −70% (IMO2050). This paper answered the following research question: “Which technical, economic and emissions-related conditions predominantly determine the feasibility of a conceptual supply chain of liquid CO2 that...journal article 2022
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Gilvari, H. (author), van Battum, Coen H.H. (author), Farnish, Richard (author), Pang, Y. (author), de Jong, W. (author), Schott, D.L. (author)This work investigates the proportion of generated fines in a pilot-scale experiment using a belt conveyor and commercial fuel pellets. For this, a belt conveyor with a length of 3.1 m was used and operated at varying conditions: speeds, percentages of material loading on the belt, two combinations of the inclination angle of the belt and the...journal article 2022
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Fransen, M.P. (author), Langelaar, Matthijs (author), Schott, D.L. (author)In calibration of model parameters for discrete element method (DEM) based models the focus lies on matching the mean key performance indicator (KPI) values from laboratory experiments to those from simulation results. However, due to the stochastic nature of granular processes experimental results can show large variances. To include...journal article 2022
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Mohajeri, M. (author), van den Bergh, Arjan J. (author), Jovanova, J. (author), Schott, D.L. (author)Ship unloader grabs are usually designed using the manufacturer's in-house knowledge based on a traditional physical prototyping approach. The grab performance depends greatly on the properties of the bulk material being handled. By considering the bulk cargo variability in the design process, the grab performance can be improved...journal article 2021
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Cutz, L. (author), Tiringer, U. (author), Gilvari, H. (author), Schott, D.L. (author), Mol, J.M.C. (author), de Jong, W. (author)The use of biomass pellets as a source of renewable energy has increased in recent times. However, pellet storage during transportation can compromise their properties, due to fluctuating temperature and humid environments. Here, we show that extended storage of one month at 40 °C and 85% relative humidity causes significant biomass pellet...journal article 2021
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Fransen, M.P. (author), Langelaar, Matthijs (author), Schott, D.L. (author)Developments in discrete element modelling (DEM) enable detailed modelling of granular flows in bulk handling equipment (BHE) but due to the computational expense of DEM, wide use in analysing equipment performance is not yet feasible. Metamodels are a viable option to effectively use DEM in analysing BHE performance. Metamodels are able to...journal article 2021
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Schiaretti, Matteo (author), Cai, Jie (author), Jiang, X. (author), Zhang, Shengming (author), Schott, D.L. (author)Industry design standards such as BS 7910 deployed some empirical formulas for the prediction of stress intensity factor (SIF) based on simulation results from traditional finite element method (FEM). However, such FEM simulation occasionally failed to convince people due to the large discrepancies compared with engineering practice. As a...journal article 2021
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Mohajeri, M. (author), van Rhee, C. (author), Schott, D.L. (author)This paper presents a multi-step DEM calibration procedure for cohesive solid materials, incorporating feasibility in finding a non-empty solution space and definiteness in capturing bulk responses independently of calibration targets. Our procedure follows four steps: (I) feasibility; (II) screening of DEM variables; (III) surrogate modeling...journal article 2021
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Yan, Y. (author), Helmons, R.L.J. (author), Wheeler, Craig (author), Schott, D.L. (author)A previous study revealed that a convex pattern surface can reduce sliding wear of a transfer chute. A convex pattern surface is a flat surface outfitted with a pattern of convexes defined by five parameters. A three-level definitive screening design (DSD) method combined with discrete element method (DEM) is used to investigate the influence...journal article 2021
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Mohajeri, M. (author), de Kluijver, Wilbert (author), Helmons, R.L.J. (author), van Rhee, C. (author), Schott, D.L. (author)The traditional design approach of grabs and other bulk handling equipment consists of manufacturing and testing physical prototypes. A novel design approach is to use a co-simulation of MultiBody Dynamics (MBD) and Discrete Element Method (DEM), in which the virtual prototype of a new concept interacts with bulk solids. Therefore, this study...journal article 2021