Ground adjustment procedure of a deployable high accuracy mesh antenna for space VLBI mission

Natori, M. C.; Takano, Tadashi; Noda, T.; Tashima, Takanori; Tabata, Masaki

doi:10.2514/6.1998-1923

Cited by 17 publications

(8 citation statements)

References 2 publications

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“…According to the literature survey, scholars use a variety of methods to adjust the accuracy of mesh antenna reflectors; Natori et al [2] adjusted the accuracy for space very long baseline interferometry (VLBI) mission, and in [3], the shape accuracy adjustment of a flexible mesh antenna reflector by back up cable was presented. In addition, the theory of the shape accuracy adjustment of a flexible mesh antenna reflector, formula, and steps for adjustment were given for the improved mesh shape deployable antenna structure [4].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Control of the Redundant Parallel Adjustment Mechanism on a Deployable Antenna Panel

Tian

Bao

Wang

2016

Sensors

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With the aim of developing multiple input and multiple output (MIMO) coupling systems with a redundant parallel adjustment mechanism on the deployable antenna panel, a structural control integrated design methodology is proposed in this paper. Firstly, the modal information from the finite element model of the structure of the antenna panel is extracted, and then the mathematical model is established with the Hamilton principle; Secondly, the discrete Linear Quadratic Regulator (LQR) controller is added to the model in order to control the actuators and adjust the shape of the panel. Finally, the engineering practicality of the modeling and control method based on finite element analysis simulation is verified.

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Section: Introductionmentioning

confidence: 99%

Modeling and Control of the Redundant Parallel Adjustment Mechanism on a Deployable Antenna Panel

Tian

Bao

Wang

2016

Sensors

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“…Additionally, as the center area of the analysis model is clamped, the surface error of the clamped area should be 0mm. Thus, the error distribution used in this analysis is described as, 2 0 / 5 r r (1) where, r 0 is maximum value of the antenna radius, 500mm. Table 2 shows the design variables of design optimization and the nominal design.…”

Section: Analysis Model Of Rib-stiffened Shell Antennamentioning

confidence: 99%

“…High precision space antennas, such as Muses-B 1) and Astro-G 2) , have the subject of continued interest and developed in the past several decades. The required surface accuracy for the space antenna has become higher and higher to realize the high radio frequency survey.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Surface Accuracy for High-Precision Space Antenna by Design Optimization of Adaptive Structure System

Satou¹,

Furuya²,

Kogiso³

2014

AEROSPACE TECHNOLOGY JAPAN

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This paper addresses the design of a rib-stiffened shell antenna with the adaptive structure system by simultaneous optimization of the structure and the actuators to improve the surface accuracy of the space antenna. A rib-stiffened shell antenna is proposed for the antenna structure concept with the adaptive structure system. The simultaneous design optimization is performed for the 1/6 element model of rib-stiffened shell antenna. The results of the design optimization show that the higher precision surface can be obtained by the simultaneous optimum design than the individual optimum design. The feasibility of the simultaneous optimum design is examined experimentally. The surface error obtained by the experiment is in agreement with the surface error of the design optimization, and thus, the feasibility of the simultaneous optimum design is verified.

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“…Although the errors caused by the shape repeatability of the deployable antennas have been observed in some studies 4,5) and deployment repeatability caused by joints has been investigated for high precision space structures 10,11) , little attention has been given to the mechanisms via which cable nonlinearities affect the shape repeatability. However, it is necessary to consider the mechanisms for shape repeatability of a cable-network structure for next-generation antennas.…”

Section: Introductionmentioning

confidence: 99%

“…However, it is difficult to make space antennas that are both large and precise 3) . In order to overcome this difficulty, several types of large deployable antennas have been studied and developed; in particular, deployable antennas consisting of cable networks are widely developed and used [4][5][6][7][8][9] . Cables used for cable networks have nonlinearities, such as hysteresis and changes in natural length, between the tensile load and elongation.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Shape Repeatability of a Cable-Network Structure

Tanaka

Saito

2012

AEROSPACE TECHNOLOGY JAPAN

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In this study, the shape repeatability of cable-network structures is examined. Cables used for cable networks have nonlinearities between the tensile load and elongation. Therefore, the shapes of cable-network structures have some uncertainty, which leads to diminished shape repeatability. In order to clarify the influence of such nonlinearities, numerical simulations and experiments are carried out. The mechanical properties of the cables are experimentally investigated and their nonlinear characteristics are numerically modeled. The experimental model examined in our previous study is employed as the analysis model. The shape repeatability of the models caused by the nonlinear characteristics of cables and rigid body rotations of nodes are investigated through numerical simulations. The modeled nonlinear characteristics of the cables used in the numerical simulations are validated by comparing with experimental results.

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Ground adjustment procedure of a deployable high accuracy mesh antenna for space VLBI mission

Cited by 17 publications

References 2 publications

Modeling and Control of the Redundant Parallel Adjustment Mechanism on a Deployable Antenna Panel

Modeling and Control of the Redundant Parallel Adjustment Mechanism on a Deployable Antenna Panel

Improvement of Surface Accuracy for High-Precision Space Antenna by Design Optimization of Adaptive Structure System

A Study on the Shape Repeatability of a Cable-Network Structure

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