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Designs, Volume 8, Issue 4

August 2024 - 23 articles

Cover Story: Floating offshore wind is a promising renewable energy source, but its cost compared to established energy sources is an obstacle for large-scale commercial implementation. Increasing turbine capacities can reduce costs by minimizing the number of foundations, moorings, cables, and operations and maintenance equipment required. This work presents trends in mass-optimized VolturnUS hull designs for increasing turbine capacity wave environment severity. To do this, a novel rapid preliminary hull design framework is introduced, implementing frequency domain modeling, statistical extreme response estimations, constructability requirements, and genetic algorithm optimization. Findings indicate that larger turbines improve mass efficiency, albeit with diminishing returns, and more severe wave conditions necessitate heavier substructures. View this paper
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Articles (23)

  • Article
  • Open Access
7 Citations
2,877 Views
15 Pages

22 August 2024

The rapid advancement of 3D bioprinting has created a need for cost-effective and versatile 3D printers capable of handling bio-inks at various scales. This study introduces a novel framework for a specialized nozzle-holding device designed for an ex...

  • Article
  • Open Access
1,316 Views
47 Pages

Design of a Trailer Adapted for Accommodation and Transport of Beehives

  • Eduardo Garzón,
  • Vanesa García-Garzón,
  • Javier Pascual García and
  • Pedro Jose Sánchez-Soto

20 August 2024

There is relevant interest concerning beehives, taking into account climate change and its influence on bees’ behavior. A part of the industrial engineering sector is focusing on beekeeping applications. More specifically, the present study aim...

  • Article
  • Open Access
2 Citations
1,918 Views
19 Pages

20 August 2024

In the realm of high-pressure vessel simulation, conventional finite element method (FEM) approaches, as per ASME standards, may inadequately predict the behavior of flat surfaces under elevated temperatures. This study challenges the efficacy of she...

  • Article
  • Open Access
1 Citations
2,753 Views
18 Pages

Experimental Fitting of Efficiency Hill Chart for Kaplan Hydraulic Turbine

  • Roberto Capata,
  • Alfonso Calabria,
  • Gian Marco Baralis and
  • Giuseppe Piras

13 August 2024

The development of hydroelectric technology and much of the “knowledge” on hydraulic phenomena derive from scale modeling and “bench” tests to improve machinery efficiency. The result of these experimental tests is mapping the...

  • Article
  • Open Access
1 Citations
1,892 Views
23 Pages

Dynamic Error Estimation in Higher-Order Finite Elements

  • Anna Karpik,
  • Francesco Cosco and
  • Domenico Mundo

11 August 2024

The Finite Element Method (FEM) has emerged as a powerful tool for predicting the behavior of industrial products, including those with complex geometries or uncommon materials. Finite Element Analysis (FEA) is widely used to study structural vibrati...

  • Article
  • Open Access
6 Citations
3,004 Views
19 Pages

LSTM Networks for Home Energy Efficiency

  • Zurisaddai Severiche-Maury,
  • Wilson Arrubla-Hoyos,
  • Raul Ramirez-Velarde,
  • Dora Cama-Pinto,
  • Juan Antonio Holgado-Terriza,
  • Miguel Damas-Hermoso and
  • Alejandro Cama-Pinto

9 August 2024

This study aims to develop and evaluate an LSTM neural network for predicting household energy consumption. To conduct the experiment, a testbed was created consisting of five common appliances, namely, a TV, air conditioner, fan, computer, and lamp,...

  • Review
  • Open Access
9 Citations
4,140 Views
25 Pages

A Systematic Literature Review on AC Microgrids

  • Marcos Gomez-Redondo,
  • Marco Rivera,
  • Javier Muñoz and
  • Patrick Wheeler

5 August 2024

The objective of this work is to analyze and compare AC microgrid (ACMG) solutions to introduce the topic to new researchers. The methodology used to achieve this goal is a systematic literature review using five questions: (1) How have ACMGs evolved...

  • Article
  • Open Access
2,211 Views
21 Pages

Development of Ballistic Protection Soft Panels According to Regulatory Documents

  • Dana Barkane,
  • Marianna Grecka,
  • Dana Almli,
  • Viktorija Mecnika and
  • Inese Ziemele

31 July 2024

The development of Ballistic Protection Vests (BPVs) has gained significant attention, particularly focusing on the design of Ballistic Protection Soft Panels (BPSPs), which are crucial to the overall size and configuration of these vests. Despite th...

  • Review
  • Open Access
6 Citations
7,789 Views
26 Pages

Monitoring Wearable Devices for Elderly People with Dementia: A Review

  • Inês C. Rocha,
  • Marcelo Arantes,
  • António Moreira,
  • João L. Vilaça,
  • Pedro Morais,
  • Demétrio Matos and
  • Vítor Carvalho

29 July 2024

The growth in the prevalence of dementias is associated with a phenomenon that challenges the 21st century, population aging. Dementias require physical and mental effort on the part of caregivers, making it difficult to promote controlled and active...

  • Article
  • Open Access
2,476 Views
15 Pages

26 July 2024

Throughout much of the 20th century, Sn–Pb solder dominated electronics. However, environmental and health concerns have driven the adoption of lead-free alternatives. Since 2006, legislation such as the European Union’s RoHS Directive ha...

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Designs - ISSN 2411-9660