Spatial Geometry Modeling of Truss Structure and Analysis of Connection Deviation for Deployable Truss Antenna

Tian, Dake; Liu, Rongqiang; Deng, Zongquan

doi:10.1109/icmtma.2010.548

Cited by 6 publications

(9 citation statements)

References 9 publications

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“…Deployable truss antenna can realize telecommunication with hand-held terminal [2][3][4]. It consists of several basic modules with the shape of hexagonal truncated pyramid, as shown in Fig.1.…”

Section: Design Requirements Of Basic Framementioning

confidence: 99%

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Fuzzy Comprehensive Evaluation of Basic Frame for Deployable Truss Antenna

Tian

Liu

Deng

et al. 2011

Communications in Computer and Information Science

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Abstract. Based on modular idea, deployable truss antenna use for satellites has become a new type of deployable antenna, which can meet the space science missions. According to the structural characteristics of deployable truss antenna, design requirements of basic frame are proposed. On this basis, six schemes of basic frame are developed. Using fuzzy comprehensive evaluation method, six schemes are evaluated. The comprehensive evaluation models are built, which are composed of factor set, the evaluation set, the weighing set and evaluation matrix. The fuzzy composite operator is determined. Finally, an optimal configuration is obtained according to maximum membership degree law. Using the optimal configuration, an deployable truss antenna is designed.

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Section: Design Requirements Of Basic Framementioning

confidence: 99%

“…where r ij (i=1,2,3,4,5,6; j=1, 2,3,4) is the membership degree when the number of factor is i. In terms of the matrix operation, fuzzy comprehensive evaluation matrix can be determined by the following equation:…”

Section: Fuzzy Comprehensive Evaluation Modelmentioning

confidence: 99%

Fuzzy Comprehensive Evaluation of Basic Frame for Deployable Truss Antenna

Tian

Liu

Deng

et al. 2011

Communications in Computer and Information Science

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“…By combining equations (2), (11) and 13, we can deduce that the corresponding revolute variables in the closed-loop linkages A 2 B 2 C 2 D 2 and E 1 A 1 F 1 C 2 are equal. According to equation (7), the relationship between the motion screws of the revolute joints only depends on the joint angles. Thus, the scale coefficients of the two linkages are equal.…”

Section: Deployable Mechanical Network Of Altmann Linkagesmentioning

confidence: 99%

“…Many scholars have extensively studied this field and have achieved significant progress. Kishimoto and Natori, 6 Tian et al 7 and Thomson 8 proposed a parabolic deployable antenna and the AatroMesh deployable reflector, respectively, on the basis of planar four-bar linkage. Chen and You [9][10][11][12] and Huang et al 13 developed modular deployable mechanical networks using the Bennett, Myard, and Bricard linkages.…”

Section: Introductionmentioning

confidence: 99%

“…For a mechanical network, several methods can be used to connect units; examples include the common parts connection method, scissor joint connection method, and overlapping-unit method. In the literatures, [6][7][8] the mechanical networks were constructed with the common parts connection method, in which units are connected by using the common sides of parallelogram linkages. In Ding et al, 15 the units were connected by the link of an eight-bar closed-loop linkage.…”

Section: Introductionmentioning

confidence: 99%

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Large deployable network constructed by Altmann linkages

Song

Guo

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part C:

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This study proposes a large-scale modular deployable mechanical network constructed by networking Altmann linkages, which are spatial single-loop mechanisms with six revolute joints and four bars, and develops a theoretical approach to verify the feasibility of the networking method. First, the screw motion equation of the linkage is derived, and the deployability of the linkage is demonstrated through a motion simulation. Second, using the overlapping-unit method, a deployable mechanical network is constructed. The constraint graph of the mechanical network is deduced subsequently. The mobility of the mechanical network is proved by screw theory, which demonstrates the feasibility of the networking method. Then, the motion of the mechanical network is simulated and it is found to have excellent deployability. Finally, a prototype of the mechanical network is fabricated. Results show that spatial single-loop linkages can construct modular deployable mechanical networks with the overlapping-unit method under appropriate connections. This networking method can be verified with the theoretical approach proposed in this work.

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Dynamic Behavior of Satellite and Its Solar Arrays Subject to Large-Scale Antenna Deployment Shock

Zhang,

Wu,

Han

et al. 2024

Aerospace

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Satellites should be equipped with more and more deployable, large, flexible appendages to improve their service efficiency and reduce launch costs. The spring-driven deployment method of flexible appendages has been widely applied and generates great instantaneous shock loads on satellites, maybe affecting the safety of other flexible appendages, but the current related investigations for satellites with multiple large flexible appendages are insufficient. In this study, the deployment test of the antenna itself was conducted, and the attitude changes in a satellite during antenna deployment were telemetered. Then, a related dynamical model of the satellite was established and verified by the telemetry values of the satellite. Finally, the shock mechanism transmitted to solar arrays was analyzed, and the effect of solar array attitude was discussed. The results show that the simulated method of antenna deployment equivalent to the shock loads tested was thought to be efficient, though it could cause a small non-zero constant of the simulated angular velocities in the antenna deployment direction. The shock-induced moments, except the rotation direction of the solar array drive assembly (SADA), should be highlighted for the antenna deployment dynamic design of satellites, and the solar array attitude has few effects on the shock-induced loads at the SADA.

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Spatial Geometry Modeling of Truss Structure and Analysis of Connection Deviation for Deployable Truss Antenna

Cited by 6 publications

References 9 publications

Fuzzy Comprehensive Evaluation of Basic Frame for Deployable Truss Antenna

Fuzzy Comprehensive Evaluation of Basic Frame for Deployable Truss Antenna

Large deployable network constructed by Altmann linkages

Dynamic Behavior of Satellite and Its Solar Arrays Subject to Large-Scale Antenna Deployment Shock

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