Development of trusses made of carbon fiber composites for coaxial space remote sensors

Lei, 张雷 Zhang; Jin-song, 姚劲松 Yao; Xue-zhi, 贾学志 Jia; Yuan, 安源 An; Guang, 金光 Jin

doi:10.3788/ope.20122009.1967

Cited by 2 publications

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“…In addition, the space truss has the advantages of low machining and manufacturing complexity, high stiffness, flexible assembly, light volume and so on. In recent years, it has been widely used in the field of architecture and space design, and is often used as a support structure for payloads [2,3]. Arch trusses are often used in Bridges, arch buildings and other structures because of their convenient construction and good force [4].…”

Section: Introductionmentioning

confidence: 99%

Research on Topology Optimization Design of Truss Structure

2024

HSET

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Due to continuous advances in engineering technology and architecture, the use of truss structures is expanding. The design method of ideal truss structure is the main research topic of this paper. The topology optimization method is applied to a bridge design case study. The load and total material utilization ratio of each rod of triangular truss, arch truss and Pratt truss were determined by using structural mechanics solver. By comparing the stress and material consumption of the truss structure, it shows that the truss structure has advantages in stress and can be used in the truss construction of short-distance arch bridge. Truss is the basic unit of the topology optimization method of truss structure proposed in this study. By optimizing the topological shape of the truss, the ideal design of the whole structure is realized. While maintaining structural stiffness and stability, the technology can significantly reduce the weight and cost of the structure.

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Section: Introductionmentioning

confidence: 99%

Research on Topology Optimization Design of Truss Structure

2024

HSET

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“…It is widely used in resource exploration, remote sensing mapping, weather forecasting, environmental research, agricultural development, urban construction, etc. With the continuous development of aerospace technology, the continuous innovation of various research methods and the continuous improvement of space operation task requirements, people urgently hope that space remote sensing cameras can achieve higher pixel resolution and better dynamic transfer function to obtain more clear and high-quality ground images, thereby improving the information acquisition capability of remote sensing cameras and realizing detailed survey and perception of ground information [1] .…”

Section: Introductionmentioning

confidence: 99%

Carbon fiber truss support technology for high resolution space camera

Zhang,

Cai,

Wang

et al. 2023

Third International Computing Imaging Conference (CITA 2023)

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With the continuous development of space technology and space homework task requires unceasing enhancement, the world have full access to high resolution remote sensing era, people are eager to RMB space remote sensing camera can achieve higher resolution and better dynamic transfer function, to get clearer the ground of the full image, to provide more field data sources. Truss as main between optical element of space remote sensing camera support structure, to reduce the number of cameras in the process of emission by shock, vibration, overload and other complex changes in the external environment, must meet with good strength, stiffness and structural stability index, to ensure that the optical element will always keep the position of the imaging accuracy does not change, to ensure the quality of the camera's image. Based on the practical application of a ϕ 400 mm space camera, this paper studies the high-precision carbon fiber composite truss rod support structure, and studies the rationality and stability of the truss structure from theoretical analysis, structural design and optimization, engineering analysis and other aspects. Through the comparative analysis of the truss type main load bearing structure, the double layer multi-bar truss support structure with stable structure form is selected and combined with the use of Hypermesh/Patran/Nastran and other finite element analysis software, the static analysis, static temperature coupling analysis and dynamic analysis of the designed truss support structure respectively. The analysis results show that the stiffness of the truss structure is good, and the position of the primary and secondary mirrors does not change much under the joint action of temperature load and microgravity, and the thermal stability is good, and the resonance of the truss can be effectively avoided during the launching process. The acceleration response of sinusoidal vibration analysis and random vibration analysis is within the required range, indicating that the strength and dynamic stiffness characteristics of the truss are good, which can meet the requirements of the characteristic frequency of the whole structure for the space camera.

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Development of trusses made of carbon fiber composites for coaxial space remote sensors

Cited by 2 publications

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Research on Topology Optimization Design of Truss Structure

Research on Topology Optimization Design of Truss Structure

Carbon fiber truss support technology for high resolution space camera

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