Mechanical simulation of artificial gravity in torus-shaped and cylindrical spacecraft

Dastjerdi, Shahriar; Malikan, Mohammad; Eremeyev, Victor A.; Akgöz, Bekir; Cívalek, Ömer

doi:10.1016/j.actaastro.2020.11.005

Cited by 15 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Especially with the current significant drop in launch costs, this figure might even be reduced. Also, in terms of operation and spacecraft maneuvering flexibility, several recent studies have been published ( Hall, 2016 ; Martin et al, 2016 ; Chen et al, 2020 ; Minster et al, 2020 ; Spilker, 2020 ; Dastjerdi et al, 2021 ) showing the feasibility of large rotating spacecraft. We should provide the crew, and later space tourists, with a physiological level of gravity the same as we do with providing a physiological level of oxygen or food.…”

Section: Discussionmentioning

confidence: 99%

The application of artificial gravity in medicine and space

Isasi

Isasi²,

Loon

2022

Front. Physiol.

View full text Add to dashboard Cite

Gravity plays a crucial role in physiology. The lack of gravity, like in long duration spaceflight missions, cause pathologies in e.g., the musculoskeletal system, cardiovascular deconditioning, immune system deprivation or brain abnormalities, to just mention a few. The application of artificial gravity through short-arm human centrifugation (SAHC) has been studied as a possible countermeasure to treat spaceflight deconditioning. However, hypergravity protocols applied by using SAHC have also been used to treat different, ground-based pathologies. Such gravitational therapies have been applied in Uruguay for more than four decades now. The aim of this overview is to summarize the most important findings about the effects of gravitational therapy in different, mainly vascular based pathologies according to the experience in the Gravitational Therapy Center and to discuss the current research in the field of hypergravity applications in medicine but also as multisystem countermeasure for near weightlessness pathologies. New insight is needed on the use of hypergravity in medicine and space research and application.

show abstract

Section: Discussionmentioning

confidence: 99%

The application of artificial gravity in medicine and space

Isasi

Isasi²,

Loon

2022

Front. Physiol.

View full text Add to dashboard Cite

show abstract

“…Li et al [5] study the structural deformation and thermodynamic response induced by reentry aerodynamic force and thermal loads. The large deformation and stress analysis of configuration was carried out by imposing mechanical and thermal loads [8]. Ji and Li et al [9] proposed a structural dynamic model to study deformation of spacecraft under typical loads such as concentrated forces, body forces and torques.…”

Section: Introductionmentioning

confidence: 99%

A Multi-Scale Study on Deformation and Failure Process of Metallic Structures in Extreme Environment

Shi

et al. 2022

IJMS

View full text Add to dashboard Cite

It is a macro-micro model study for defect initiation, growth and crack propagation of metallic truss structure under high engine temperature and pressure conditions during the reentry atmosphere. Till now, the multi-scale simulation methods for these processes are still unclear. We explore the deformation and failure processes from macroscale to nanoscale using the Gas-Kinetic Unified Algorithm (GKUA) and all-atomic, molecular dynamic (MD) simulation method. The behaviors of the dislocations, defect evolution and crack propagation until failure for Aluminum-Magnesium (Al-Mg) alloy are considered with the different temperature background and strain fields. The results of distributions of temperature and strain field in the aerodynamic environment obtained by molecular dynamics simulations are in good agreement with those obtained from the macroscopic Boltzmann method. Compared to the tensile loading, the alloy structure is more sensitive to compression loading. The polycrystalline Al-Mg alloy has higher yield strength with a larger grain size. It is due to the translation of plastic deformation mode from grain boundary (GB) sliding to dislocation slip and the accumulation of dislocation line. Our findings have paved a new way to analyze and predict the metallic structural failure by micro-scale analysis under the aerodynamic thermal extreme environment of the reentry spacecraft on service expiration.

show abstract

New Design and Stability Analysis of Gravity Stabilized Solar Sail in Earth Orbit

Bae

Kang

2023

Int. J. Control Autom. Syst.

View full text Add to dashboard Cite

Mechanical simulation of artificial gravity in torus-shaped and cylindrical spacecraft

Cited by 15 publications

References 39 publications

The application of artificial gravity in medicine and space

The application of artificial gravity in medicine and space

A Multi-Scale Study on Deformation and Failure Process of Metallic Structures in Extreme Environment

New Design and Stability Analysis of Gravity Stabilized Solar Sail in Earth Orbit

Contact Info

Product

Resources

About