Design manufacture and testing of a composite support structure for spacecraft application

Pradeep, T.; Soni, Sourabh Kumar; Thomas, Benedict

doi:10.1016/j.matpr.2020.01.459

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Carbon-fiber-reinforced plastics (CFRPs) have excellent mechanical properties, such as high stiffness, high strength and low coefficient of thermal expansion (CTE), and are considered to be the next generation of aerospace application materials [10][11][12][13]. In recent years, structural thermal stability has increasingly been accomplished through the use of carbon-fiber-reinforced composites.…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera

et al. 2021

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With the development of space optical remote sensing technology, especially off-axis space cameras, the thermal dimensional stability of the support structure has become increasingly demanding. However, the asymmetry of the camera structure has not been fully considered in the past design of the thermal stability of off-axis cameras. In order to solve this problem, a support structure with very low thermal deformation in the asymmetric direction is presented in this paper for an off-axis TMA camera. By means of the negative axial thermal expansion coefficient of carbon-fiber-reinforced plastics (CFRP), a composite laminate with near zero-expansion was obtained by adjusting the direction of fiber laying, and the asymmetric feature of the off-axis remote sensing camera structure was fully considered, thus enabling the support structure to have good thermal dimensional stability. We carried out a thermal load analysis and an optical analysis of the whole camera in the case of a temperature rise of 5 °C. The results show that the zero-expansion support structure has good thermal stability, and the thermal deformation in the asymmetric direction of the camera is obviously smaller than that of the isotropic laminate support structure. Compared with the isotropic support structure, the influence of thermal deformation on MTF is reduced from 10.43% to 2.61%. This study innovatively incorporates the asymmetry of the structure into the thermal sta-bility design of an off-axis TMA camera and provides a reference for the thermal stability design of other off-axis space cameras.

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Section: Introductionmentioning

confidence: 99%

Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera

et al. 2021

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“…In recent decades, with the increasing number of spacecraft launched by various countries, the space environment has become increasingly complex, and the development of high-performance structural materials suitable for the space environment has become an inevitable choice for the spacecraft in the future [1][2][3][4]. For the critical components and structural parts of spacecraft, high-strength steel with higher density is the main material commonly utilized in the past, but the application of traditional steel is greatly restricted because of the demand for lightweight spacecraft.…”

Section: Introductionmentioning

confidence: 99%

Lattice Stability and Elastic Properties of Zr-Ti-X Alloys (X = Al, V) by the First Principles Study

Duan

Liang

Yang

et al. 2020

Metals

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Based on a certain ratio of Zr and Ti atomic fractions according to Zr47Ti45Al5V3 (wt.%), the lattice constants, lattice stability, and elastic properties of Zr-Ti-X alloys (X = Al, V) in body-centered cubic (BCC) (β phase) and hexagonal close-packed (HCP) (α phase) crystal structures were studied using first-principles calculations. It is shown that Al acts as an α stabilizer for Zr-Ti-Al alloys and V can stabilize the β phase for Zr-Ti-V alloys. As the mass fraction of Al increases from 4 wt.% (Zr55Ti41Al4) to 6.8 wt.% (Zr53.2Ti40Al6.8), these alloys all have relatively good strength, hardness, and rigidity, however, their ductility deteriorated with the increasing of Al mass fraction. When the mass fraction of V in Zr-Ti-V alloys is 2.4 wt.%, Zr55.6Ti42V2.4 (wt.%) achieved the best strength, hardness, and rigidity, when the mass fraction of V increases from 0 (Zr57Ti43) to 12 wt.% (Zr50.2Ti37.8V12), their ductility improved. The changes of phase compositions and structure with Al content or V content distinctly affect mechanical properties of ternary Zr-Ti-X alloys (X = Al, V), the amount of Zr and Ti could be factors that impact the mechanical properties of the multiphase Zr47Ti45Al5V3 from the point of view of ternary Zr-Ti-Al and Zr-Ti-V compositions.

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Design manufacture and testing of a composite support structure for spacecraft application

Cited by 2 publications

References 9 publications

Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera

Thermal Stability Design of Asymmetric Support Structure for an Off-Axis Space Camera

Lattice Stability and Elastic Properties of Zr-Ti-X Alloys (X = Al, V) by the First Principles Study

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