Revisiting the configuration of small satellites structures in the framework of 3D Additive Manufacturing

Gaudenzi, Paolo; Atek, Sofiane; Cardini, Valerio; Eugeni, Marco; Nisi, G. Graterol; Lampani, Luca; Pasquali, Michele; Pollice, L.

doi:10.1016/j.actaastro.2018.01.036

Cited by 27 publications

(12 citation statements)

References 7 publications

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“…In fact, in contrary to conventional manufacturing techniques, variations from the nominal design may have a reduced impact on the AM planning and related costs [ 2 ]. This point holds not only in medical applications but also in all cases that need a high level of customization, as, for example, in space applications [ 3 ]. To date, medical researchers and clinicians have had limited access to the process knowledge of 3D printing technologies.…”

Section: Introductionmentioning

confidence: 99%

Digital Design of Medical Replicas via Desktop Systems: Shape Evaluation of Colon Parts

Bici

Cardini

Eugeni

et al. 2018

Journal of Healthcare Engineering

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In this paper, we aim at providing results concerning the application of desktop systems for rapid prototyping of medical replicas that involve complex shapes, as, for example, folds of a colon. Medical replicas may assist preoperative planning or tutoring in surgery to better understand the interaction among pathology and organs. Major goals of the paper concern with guiding the digital design workflow of the replicas and understanding their final performance, according to the requirements asked by the medics (shape accuracy, capability of seeing both inner and outer details, and support and possible interfacing with other organs). In particular, after the analysis of these requirements, we apply digital design for colon replicas, adopting two desktop systems. The experimental results confirm that the proposed preprocessing strategy is able to conduct to the manufacturing of colon replicas divided in self-supporting segments, minimizing the supports during printing. This allows also to reach an acceptable level of final quality, according to the request of having a 3D presurgery overview of the problems. These replicas are compared through reverse engineering acquisitions made by a structured-light system, to assess the achieved shape and dimensional accuracy. Final results demonstrate that low-cost desktop systems, coupled with proper strategy of preprocessing, may have shape deviation in the range of ±1 mm, good for physical manipulations during medical diagnosis and explanation.

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Section: Introductionmentioning

confidence: 99%

Digital Design of Medical Replicas via Desktop Systems: Shape Evaluation of Colon Parts

Bici

Cardini

Eugeni

et al. 2018

Journal of Healthcare Engineering

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“…Por exemplo, dutos de ar dentro da carenagem do foguete Atlas V produzidos em Ultem 9085 pelo processo FDM (Schiller, 2015). Além disso, peças à base de polímero têm sido desenvolvidas para estruturas de CubeSats, uma classe de nanosatélites de 1 a 10kg com formato e dimensões padronizadas (Gaudenzi et al, 2018) e peças de plástico revestidas de ligas metálicas têm sido utilizadas em componentes antenas de satélite (Bhowmik et al, 2014). Aplicações para peças manufaturadas aditivamente usando ligas metálicas foram encontradas em aplicações aeronáuticas e espaciais como peças de motores de foguetes (R. Clinton et al, 2018), em injetores de motores a jato e peças estruturais de aeronaves (Nickels, 2015), peças estruturais de satélite (Allevi et al, 2018), vasos de pressão e outros (Brookes, 2015).…”

Section: Resultsunclassified

Covid-19 (Sars-Cov-2): Estudo Prospectivo Sobre Testes De Detecção Do Coronavírus Em Humanos

Teixeira

Rocha

2021

A Visão Sistêmica E Integrada Das Engenharias E Sua Integração Com a Sociedade

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“…The picture of the modeling from the Autodesk mesh mixer is shown in Figure 8. P. Gaudenzi et al made use of CAD, computer-aided manufacturing and computer-aided engineering files for the development of their models for small satellite structures and then, later on, performed the structural analysis using analysis systems (ANSYS) (Gaudenzi et al , 2018). Enrico Hilpert et al developed a metal mirror for space applications and for this purpose the team made use of Surface Evolver software that helped in achieving a minimum energy distribution and then later on performed finite element analysis analysis using ANSYS (Hilpert et al , 2019).…”

Section: Additive Manufacturing In Spacementioning

confidence: 99%

Opportunities and challenges in additive manufacturing used in space sector:a comprehensive review

Ishfaq

Asad

Mahmood

et al. 2021

RPJ

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Purpose The purpose of this study is to compile the successful implementation of three-dimensional (3D) printing in the space for the manufacturing of complex parts. 3D printing is an additive manufacturing (AM) technique that uses metallic powder, ceramic, or polymers to build simple/complex parts. The parts produced possess good strength, low weight, excellent mechanical properties and are cost-effective. This saves a considerable amount of both time and carrying cost. Thereof the challenges and opportunities that the space sector holds for AM is worth reviewing to provide a better insight into further developments and prospects for this technology. Design/methodology/approach The potentiality of 3D printing for the manufacturing of various components under space conditions has been explained. Here, the authors have reviewed the details of manufactured parts used for zero gravity missions, subjected to onboard International Space Station conditions and with those manufactured on earth. Followed by the major opportunities in 3D printing in space which include component repair, material characterization, process improvement and process development along with the new designs. The challenges such as space conditions, availability of power in space, the infrastructure requirements and the quality control or testing of the items that are being built in space are explained along with their possible mitigation strategies. Findings These components are well comparable with those prepared on earth which enables a massive cost saving. Other than the onboard manufacturing process, numerous other components and a complete robot/satellite for outer space applications were manufactured by AM. Moreover, these components can be recycled on board to produce feedstock for the next materials. The parts produced in space are bought back and compared with those built on earth. There is a difference in their nature i.e. the flight specimen showed a brittle nature and the ground specimen showed a denser nature. Originality/value The review discusses the advancements of 3D printing in space and provides numerous examples of the applications of 3D printing in space and space applications. The paper is solely dedicated to 3D printing in space. It provides a breakthrough in the literature as a limited amount of literature is available on this topic. The paper aims at highlighting all the challenges that AM faces in the space sector and also the future opportunities that await development.

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Revisiting the configuration of small satellites structures in the framework of 3D Additive Manufacturing

Cited by 27 publications

References 7 publications

Digital Design of Medical Replicas via Desktop Systems: Shape Evaluation of Colon Parts

Digital Design of Medical Replicas via Desktop Systems: Shape Evaluation of Colon Parts

Covid-19 (Sars-Cov-2): Estudo Prospectivo Sobre Testes De Detecção Do Coronavírus Em Humanos

Opportunities and challenges in additive manufacturing used in space sector:a comprehensive review

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