Multi-material optimization design for mesh reflector antennas considering space thermal effects

Sun, Zihan; Duan, Baoyan; Zhang, Yiqun; Deng, Yang; Hu, Naigang

doi:10.1007/s00158-022-03265-2

Cited by 11 publications

(4 citation statements)

References 21 publications

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“…The calculation principle of the numerical integration method of axial geometric error is the following: if ∆ABC is an arbitrary triangular patch and the vertex coordinates are A(x 1 , y 1 , z 1 ), B(x 2 , y 2 , z 2 ), C(x 3 , y 3 , z 3 ), then the plane equation determined by ∆ABC is shown in Equation (1).…”

Section: Analysis Of Reflective Surface Mesh Scheme Of Bionic Cable Netmentioning

confidence: 99%

“…Space antennas are primarily installed on satellites, spacecraft, and other spaceborne platforms [1], facilitating two-way information transmission between these vehicles and ground stations. Operating as the "ears" or "loudspeakers" of spacecraft [2,3], space antennas have become an indispensable and vital component, influencing and constraining the performance and functionality of entire wireless communication systems and, by extension, the spacecraft itself.…”

Section: Introductionmentioning

confidence: 99%

“…where µ 1 is the upper side, and v 1 is the underside. The corresponding coordinates of each point in Figure 10 are shown in Equation (1).…”

mentioning

confidence: 99%

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Biomimetic Design of a New Semi-Rigid Spatial Mesh Antenna Reflector

Xie,

Feng,

et al. 2024

Biomimetics

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The reflective surface accuracy (RSA) of traditional space mesh antennas typically ranges from 0.2 to 6 mmRMS. To improve the RSA, an active control scheme can be employed, although it presents challenges in determining the installation position of the actuator. In this study, we propose a novel design for a semi-rigid cable mesh that combines rigid members and a flexible woven mesh, drawing inspiration from both rigid ribbed antennas and biomimicry. Initially, we investigate the planar mesh topology of spider webs and determine the bionic cable surface’s mesh topology based on the existing hexagonal meshing method, with RSA serving as the evaluation criterion. Subsequently, through motion simulations and careful observation, we establish the offset angle as the key design parameter for the bionic mesh and complete the design of the bionic cable mesh accordingly. Finally, by analyzing the impact of the node quantity on RSA, we determine a layout scheme for the flexible woven mesh with a variable number of nodes, ultimately settling for 26 nodes. Our results demonstrate that the inclusion of numerous rigid components on the bionic cable mesh surface offers viable installation positions for the actuator of the space mesh antenna. The reflector accuracy achieved is 0.196 mmRMS, slightly surpassing the lower limit of reflector accuracy observed in most traditional space-space mesh antennas. This design presents a fresh research perspective on combining active control schemes with reflective surfaces, offering the potential to enhance the RSA of traditional rigid rib antennas to a certain extent.

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Section: Analysis Of Reflective Surface Mesh Scheme Of Bionic Cable Netmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biomimetic Design of a New Semi-Rigid Spatial Mesh Antenna Reflector

Xie,

Feng,

et al. 2024

Biomimetics

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“…The objective is to determine a suitable set of surface states at room temperature before launch, balance the deterioration of the surface accuracy at extremely high and low temperatures, and ensure that the antenna is always within the required range for normal usage. Sun et al [9] considered the complementarity of properties between different materials, used a variety of materials to make a cable-net structure, and combined the cable-net adjustment method to minimize the variation range of the orbital surface error of the mesh reflector antenna. However, similar to the cable-net pre-design method, the influence of thermal deformation on the surface accuracy can only be reduced passively.…”

Section: Introductionmentioning

confidence: 99%

Active adjustment of space-borne cable-net antenna via a two-way shape memory alloy spring

Zhang¹,

Zhang²,

He³

et al. 2023

Smart Mater. Struct.

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In extreme space environments with alternating and uneven temperature variations, the surface accuracy of cable-net antennas deteriorates significantly, thereby inducing a periodic failure or a significant deviation in the electrical performance. This is because of the lack of effective methods for controlling the surface shape during the service of the cable-net antenna. In this study, a method based on "two-way memory spring" is proposed to actively control the surface of a cable-net antenna. Herein, first, an electro-thermo-mechanical model of the shape memory alloy spring is deduced by combining the intrinsic model of the two-way shape memory effect and the resistance property of the shape memory alloy. Subsequently, a principle prototype is developed, and experiments related to active control are conducted to confirm the feasibility and effectiveness of the proposed method.

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Thermal design optimization method of mesh reflector antennas considering the interaction between cable net and flexible truss

Zhang

et al. 2023

Struct Multidisc Optim

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Multi-material optimization design for mesh reflector antennas considering space thermal effects

Cited by 11 publications

References 21 publications

Biomimetic Design of a New Semi-Rigid Spatial Mesh Antenna Reflector

Biomimetic Design of a New Semi-Rigid Spatial Mesh Antenna Reflector

Active adjustment of space-borne cable-net antenna via a two-way shape memory alloy spring

Thermal design optimization method of mesh reflector antennas considering the interaction between cable net and flexible truss

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