Initial Shape Design and Stability Analysis of Rib for Inflatable Deployable Reflector

Wang, C. G.; Xia, Zhao; Tan, Huifeng

doi:10.2514/1.j053469

Cited by 20 publications

(5 citation statements)

References 15 publications

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“…Governing Equations. According to (14) and the differential variational principle, the governing equation of thestring can be obtained as…”

Section: Hamilton's Principlementioning

confidence: 99%

“…The mentioned studies mainly focus on the vibrating characteristics of a single elastic string. The experimental and computational researches of networks and space antennas most focus on the cases of linear vibration [12,13] and linear design [14,15], while the complex nonlinear behavior of the multistring networks is still an open issue. However, few theoretical works on the multistring networks were found in the literature.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical Analysis on the Nonlinear Free Vibration of a Tri-Cross String

Pan¹,

Tang²,

Tarumi³

et al. 2017

Shock and Vibration

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Here we present a theoretical analysis on the nonlinear free vibration of a tri-cross string system, which is an element of space net-antennas. We derived the governing equations from Hamilton's principle and obtained a linearized solution by the standard perturbation method. The semi-analytical solutions of the governing equations have not been provided referring to the solution of plate vibrating problem. This analysis revealed that natural frequencies of the tri-cross string depend on the vibration amplitude due to the geometrical nonlinearity in the constitutive equation. The geometric parameters, such as the diameters and the lengths of the constituent strings, also affect the frequency through the nonlinearity of the tri-cross string. The nonlinear natural frequency shows coupled characteristic; that is, the natural frequency of the tri-cross string varies with that of the constituent strings, but the contribution of each constituent string to the natural frequency is in different proportions.

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“…Governing Equations. According to (14) and the differential variational principle, the governing equation of thestring can be obtained as…”

Section: Hamilton's Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis on the Nonlinear Free Vibration of a Tri-Cross String

Pan¹,

Tang²,

Tarumi³

et al. 2017

Shock and Vibration

View full text Add to dashboard Cite

show abstract

“…For example, Borggräfe et al (2014Borggräfe et al ( , 2015 proposed the development of optically controlled reector lms to control the solar pressure force and hence the deected shape. Wang et al (2015) presented an inatable reector which support structure is mainly composed of a central hub, a support rib, a support torus, and a tension system. On the other hand, the Sun angle changes periodically as the Earth rotates around the Sun as shown in Fig.…”

Section: −1mentioning

confidence: 99%

Intervening in Earth’s climate system through space-based solar reflectors

Salazar

McInnes

Winter

2016

Advances in Space Research

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Several space-based climate engineering methods, including shading the Earth with a particle ring for active cooling, or the use of orbital reectors to increase the total insolation of Mars for climate warming have been considered to modify planetary climates in a controller manner. In this study, solar reectors on polar orbits are proposed to intervene in the Earth's climate system, involving near circular polar orbits normal to the ecliptic plane of the Earth. Similarly, a family of displaced polar orbits (non-Keplerian orbits) are also characterized to mitigate future natural climate variability, producing a modest global temperature increase, again to compensate for possible future cooling. These include deposition of aerosols in the stratosphere from large volcanic events. The two-body problem is considered, taking into account the eects of solar radiation pressure and the Earth's J 2 oblateness perturbation.

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“…[1][2][3][4] Tensioned membrane structures found a variety of applications in space missions such as solar cell arrays, solar sails, inflatable booms, reflector antennas, and other auxiliary systems. [5][6][7][8][9] Most of the spacecraft systems are designed with mass and volume constraints; therefore, flexible, elastic, and membrane-based structures are increasing applications in spaceborne systems. [10][11][12] The membrane structures possess small thickness along with negligible bending and compressive strength.…”

Section: Introductionmentioning

confidence: 99%

Investigation on material combination technique to enhance the anti-wrinkle and anti-vibration characteristics of the planar membrane reflector

Shinde

Kumar

Upadhyay

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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In recent trends, membrane structure has increased its applications in space missions due to its significant advantages, such as light in weight, higher folding and packaging efficiency, ease of deployment, and low on-Board volume requirement. The wrinkling and low natural frequency of vibration are the major problems with the membrane structure. This research presents a novel methodology of Kapton-Kevlar material combination for a planar membrane reflector to enhance anti-vibration and anti-wrinkling capabilities of the membrane structure. The comparative study is made for the wrinkle area, RMS error, and natural frequency of vibration with the employed approach. This study provides new insights into a material combination technique to increase performance characteristics of the space-borne membrane reflectors. The outcome of the wrinkling analysis is compared and found to be consistent with the method available in the literature. From the simulation results, it is observed that wrinkles are reduced, and the natural frequency of vibration is also increased significantly with the proposed method.

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Initial Shape Design and Stability Analysis of Rib for Inflatable Deployable Reflector

Cited by 20 publications

References 15 publications

Theoretical Analysis on the Nonlinear Free Vibration of a Tri-Cross String

Theoretical Analysis on the Nonlinear Free Vibration of a Tri-Cross String

Intervening in Earth’s climate system through space-based solar reflectors

Investigation on material combination technique to enhance the anti-wrinkle and anti-vibration characteristics of the planar membrane reflector

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