A novel modular designing for multi-ring flywheel rotor to optimize energy consumption in light metro trains

Rastegarzadeh, Sina; Mahzoon, Mojtaba; Mohammadi, Hossein

doi:10.1016/j.energy.2020.118092

Cited by 31 publications

(11 citation statements)

References 28 publications

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“…Modern trends such as mass customization, higher product variability, reduced product life cycles and variable production batches require production systems to be designed for rapid reconfiguration and self-adaptation in response to disruptions, in terms of either product changes or changes in other operational parameters [24][25][26][27][28]. Research in the area proposes, among others, reconfigurable manufacturing and assembly systems with 'plug and produce' technologies [29], holonic manufacturing and evolvable collaborative manufacturing and assembly systems [23,[29][30][31].…”

Section: Literature Reviewmentioning

confidence: 99%

Adaptive Automation Assembly Systems in the Industry 4.0 Era: A Reference Framework and Full–Scale Prototype

et al. 2021

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Industry 4.0 emerged in the last decade as the fourth industrial revolution aiming at reaching greater productivity, digitalization and operational efficiency standard. In this new era, if compared to automated assembly systems, manual assembly systems (MASs) are still characterized by wide flexibility but poor productivity levels. To reach acceptable performances in terms of both productivity and flexibility, higher automation levels are required to increase the skills and capabilities of the human operators with the aim to design next-generation assembly systems having higher levels of adaptivity and collaboration between people and automation/information technology. In the current literature, such systems are called adaptive automation assembly systems (A3Ss). For A3Ss, few design approaches and industrial prototypes are available. This paper, extending a previous contribution by the Authors, expands the lacking research in the field and proposes a general framework guiding toward A3S effective design and validation. The framework is applied to a full-scale prototype, highlighting its features together with the technical- and human-oriented improvements arising from its adoption. Specifically, evidence from this study show a set of benefits from adopting innovative A3Ss in terms of reduction of the assembly cycle time (about 30%) with a consequent increase of the system productivity (about 45%) as well as relevant improvements of ergonomic posture indicators (about 15%). The definition of a general framework for A3S design and validation and the integration of the productivity and ergonomic analysis of such systems are missing in the current literature, representing an element of innovation. Globally, this research paper provides advanced knowledge to guide research, industrial companies and practitioners in switching from traditional to advanced assembly systems in the emerging Industry 4.0 era matching current industrial and market features.

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Section: Literature Reviewmentioning

confidence: 99%

Adaptive Automation Assembly Systems in the Industry 4.0 Era: A Reference Framework and Full–Scale Prototype

et al. 2021

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“…Energy storage and release are achieved by increasing and decreasing the rotor speed. The energy storage capacity is proportional to the rotor mass and proportional to the square of its rotational speed [ 7 ]. Therefore, finding a way to improve the rotor speed limit is highly beneficial for enhancing the energy storage efficiency of flywheels [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Filament Winding Tension on the Deformation of Composite Flywheel Rotors with H-Shaped Hubs

Chen

Huan

et al. 2022

Polymers

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The residual stress plays an important role in composite flywheel rotors composed of filament windings. The fiber tension during high-prestressed winding is the main source of the rotor deformation and residual stress of composite layers. In this study, the effect of the winding tension gradient on deformation was monitored in real-time. Two types of in-plane winding tension fluctuation methods were developed to investigate the effect of tension on deformation. Online and offline measurements were performed for the strain acquisition. A wireless strain instrument was used for online deformation monitoring and a laser scanner was used for the offline surface reconstruction. Additionally, different filament winding strategies were carried out to improve the efficiency of the winding tension by finite element analysis. The results indicated that the deviation between numerical and experimental results was within 8%. Based on the proposed numerical method, the influence of the in-plane and out-of-plane winding tension gradient distributions on the rotation process of the H-shaped rotor was analyzed. An in-plane winding strategy with variable tension was developed, which increased the initial failure speed by 160%.

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“…Energy consumption in buildings is on the rise due to a variety of factors such as climate change, increase in household energy consumption, growth in real estate sector, diversity of modern home appliances, variations in industry structure, excessive energy consumption in current buildings, as well as inadequate government oversight [19]. Building thermal control, in many aspects, it could be used as an energy source for heating or cooling, underfloor air distribution [20], lighting, and so forth. There are much research has been conducted on many aspects.…”

Section: Introductionmentioning

confidence: 99%

Investigation of The Use of Titanium Dioxide Nanoparticles in Solar Cells

Luo

2020

MJMIE

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Today, nanoparticles have attracted the attention of many researchers due to their special properties as well as their many technological applications. Among these, titanium dioxide nanoparticles have many important applications in various industries due to their excellent optical, electrical and catalytic properties. These applications include use in industrial pigments, as photocatalysts in environmental cleansing, in sunscreens to protect the skin, in photovoltaic applications for solar cells, sensors, in electronic device components, and many more. Two important properties of this material that make it very efficient and useful in life are its photocatalytic and superhydrophobic properties. These two properties are used to purify water and wastewater, eliminate air pollution and buildings, accelerate photochemical reactions such as hydrogen production, fabricate surfaces and layers and self-cleaning glass. The properties of titanium dioxide nanoparticles are strongly dependent on the size of the doped particles, elements or compounds and the surface modifications made on them, which in turn are influenced by the nanoparticle synthesis method. For this reason, methods for the synthesis of titanium dioxide nanoparticles have received much attention today. As the size of the material gets smaller and smaller and reaches the nanoscale, new physical and chemical properties show up. Among the unique properties of nanomaterials, the motion of electrons and holes in semiconductor nanomaterials is dominated by quantum constraint, and the transfer properties of phonons and photons are strongly influenced by the size and geometry of the material. The effective surface area and surface to volume ratio increase with decreasing the material size. High effective levels are achieved by small particles, which will be useful in many 2TiO-based types of equipment in which the interaction of the common surface of the material is important.

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A novel modular designing for multi-ring flywheel rotor to optimize energy consumption in light metro trains

Cited by 31 publications

References 28 publications

Adaptive Automation Assembly Systems in the Industry 4.0 Era: A Reference Framework and Full–Scale Prototype

Adaptive Automation Assembly Systems in the Industry 4.0 Era: A Reference Framework and Full–Scale Prototype

Influence of Filament Winding Tension on the Deformation of Composite Flywheel Rotors with H-Shaped Hubs

Investigation of The Use of Titanium Dioxide Nanoparticles in Solar Cells

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