Simulation of ultra-thin membranes with creases

Mierunalan, Seyon; Dassanayake, Sahangi P.; Mallikarachchi, Chinthaka; Upadhyay, S. H.

doi:10.1007/s10999-022-09617-6

Cited by 2 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The structural design for the analysis of tensioned membrane antennas has been researched in terms of space environment loads and experiments [42][43][44][45][46]. However, surface accuracy considering stiffness variations has not been researched.…”

Section: Analysis Of Structural Boundary Effects Of Copper-mentioning

confidence: 99%

Analysis of Structural Boundary Effects of Copper-Coated Films and Their Application to Space Antennas

Zhou,

Li,

2023

Coatings

View full text Add to dashboard Cite

Copper-coated films are a solution for flexible electronic devices. One of the applications is a flexible-tension film-deployable antenna, which is a large deployable space antenna with broad application prospects. To analyze the possibility of applying coated films to the antenna, surface accuracy evaluation is required. The finite element method (FEM) was used to analyze the surface accuracy of the copper-coated thin-film structures. Both wrinkling and stretching–bending coupling deformation were considered. Simplified models were applied to study factors influencing the surface accuracy under boundary effects. Different sizes of coated area and different boundary conditions were simulated. The results showed the characteristic boundary effects of copper-coated thin-film structures and the influence curve of film thickness and patch size on boundary effects. These findings will inform the design and analysis of variable-stiffness thin-film antennas. On this basis, the application of a flexible-tension film-deployable antenna is discussed, along with a measure to improve the surface accuracy.

show abstract

Section: Analysis Of Structural Boundary Effects Of Copper-mentioning

confidence: 99%

Analysis of Structural Boundary Effects of Copper-Coated Films and Their Application to Space Antennas

Zhou,

Li,

2023

Coatings

View full text Add to dashboard Cite

show abstract

Deployment Simulation of Foldable Membranes Using Absolute Nodal Coordinate Formulation and Validation

Wang,

Wu,

et al. 2024

AIAA Journal

View full text Add to dashboard Cite

It has become a trend to use foldable membranes to construct large spacecraft structures such as solar sails, antennas, and drag sails with the advantages of being lightweight and having high packing efficiency. To enhance the existing numerical simulation of membrane deployment, the nonlinear behavior of the crease is finely described based on experiments and integrated into the numerical model via the principle of virtual work. Specifically, a foldable membrane is modeled as a multibody system (MBS) based on the absolute nodal coordinate formulation (ANCF), where the flexible facet is meshed with both ANCF triangular and quadrilateral thin shell elements and the crease is treated as a virtual torsional spring with special constraints along the fold line. The MBS modeling method is validated via the deployment experiment of a Z-folding membrane. The deployment of a four-unit Miura-ori membrane is further analyzed to show the capability of the approach in modeling foldable membranes with complicated configurations. Good agreement is obtained on the membrane-deformed configurations between the simulation and experiment. Additionally, the driving force at the corners is obtained. This research is expected to provide a more accurate simulation to facilitate the design and optimization of the space deployable membrane structure.

show abstract

Simulation of ultra-thin membranes with creases

Cited by 2 publications

References 33 publications

Analysis of Structural Boundary Effects of Copper-Coated Films and Their Application to Space Antennas

Analysis of Structural Boundary Effects of Copper-Coated Films and Their Application to Space Antennas

Deployment Simulation of Foldable Membranes Using Absolute Nodal Coordinate Formulation and Validation

Contact Info

Product

Resources

About