Review of Space Deployable Antenna Mechanisms

Liu, Rongqiang; Shi, Chuang; Guo, Hongwei; Li, Bingyan; Tian, Dake; Deng, Zongquan

doi:10.3901/jme.2020.05.001

Cited by 20 publications

(3 citation statements)

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“…Kawasaki presented a flat-folding theorem for single-vertex multifold origami. For the four-fold Miura-Ori, it is necessary to Meet [10]:…”

Section: Flat Foldable Conditionmentioning

confidence: 99%

Folding solar panels in space: Miura-ori and its kinematic behavior

Fan

2023

TNS

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Solar panels are made by absorbing Sunlight , which will Solar radiation energy through Photovoltaic effects or Photochemical effects directly or indirectly into Electrical energy to a device that is the central part of a solar power system and is often used in spacecraft. Spacecraft allow for large energy requirements, and solar panels require a larger area to meet the spacecraft's needs. Origami is an ingenious solution to this problem by reducing the size of solar panels needed for launch by specific folding methods, such as Miura-ori, which is a rigid origami paper in which each parallelogram remains unbent and flat during the smooth unfolding of the paper. Therefore, this paper investigates the geometric configuration and kinematic behaviour of Miura-ori based on Miura-ori units with rigid folding properties.

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“…Kawasaki presented a flat-folding theorem for single-vertex multifold origami. For the four-fold Miura-Ori, it is necessary to Meet [10]:…”

Section: Flat Foldable Conditionmentioning

confidence: 99%

Folding solar panels in space: Miura-ori and its kinematic behavior

Fan

2023

TNS

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“…1 In recent years, with the continuous development of various technologies in the aerospace field, the research on the dynamics of space deployable mechanism has become a hot topic in the academic circle. 2 The space deployable mechanism is the main component of the solid surface developable antenna, and most precast units in the mechanism consist of connecting rod and joints. For example, the spatial four-bar linkage mechanism, such as RSSR, RSSP, RRSS, and RSCS, can be used as the fundamental component of the solid surface developable antenna, in which, R represents the revolute joint, S represents the spherical joint, P represents the prismatic joint, and C represents the cylindrical joint.…”

Section: Introductionmentioning

confidence: 99%

Dynamic analysis and wear calculation of space deployable mechanism considering spherical joints with clearance and coating

Jing

Liu

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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In the space deployable mechanism considering spherical joints with clearance, the kinematic stability and working life of will be seriously affected. To address this problem, this paper proposes a nonlinear stiffness coefficient expression and an improved viscous damping coefficient expression considering the wear reduction properties of coatings, so as to obtain a conformal contact force model based on the analysis and comparison of the existing common normal contact force models. The new contact force model is qualitatively analyzed from three aspects, namely clearance size, recovery coefficient, and material properties, so as to demonstrate the correctness and applicability of the model. In the prefabricated space deployable mechanism (RSSP) with spherical joint clearance, the acceleration variation of the actuator is analyzed and compared by using the new contact force model, and the wear quantity of the spherical joints with clearance and coating is predicted. The dynamic results show that spherical joints with clearance have a significant effect on the acceleration of the actuator, and the long working time will inevitably lead to increased vibration and reduce the motion accuracy and life of the mechanism. By comparing with the calculation results of wear, it is found that the wear of spherical joint clearance with coating decreases significantly in all vector directions, and the wear area of the Euler Angle increases slightly compared with that without coating because of the increase of contact collision frequency. Therefore, the wear calculation method and coating strategy proposed in our work can provide a theoretical basis for improving the kinematic accuracy and working life of space deployable mechanism system considering spherical joints with clearance.

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“…Normally, these spacecraft are quite large and heavy, which dramatically increases the launching cost and challenges their development and engineering applications. 1,2 Inflatable deployable structures generally made of thin films can be stowed before launching and then inflated on orbit into a designed configuration. Inflatable space structures with light weight, high storage efficiency, and reliability contributing to extremely low costs have been well developed since 1960.…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a gas generator for inflatable space structures

Wang

Yang

Liu

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Gas generators have been gradually utilized to inflate inflatable space structures, and normally they use high-energy nitrogenous compounds and solid propellants as gas-generating agents. However, gas generators with a high combustion temperature, fast reaction speed, and massive energy generation will lead to an excessively high gas temperature inside the inflatable structures and an excessively fast unfolding speed, which causes wrinkles or even cracks in inflatable films. This paper proposes a new gas generating device using NaHCO3 as the gas generating agent and resistance wires as heating elements to maintain the advantages of small size and light weight, as well as high security and lack of pollution. The feasibility of the gas generator is computationally analyzed in COMSOL and experimentally verified. Additionally, a tightness test of the gas generation system is undertaken using air pressure sensors. The results show that the device can slowly and steadily generate CO2 gas to deploy thin-film inflatable structures.

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Review of Space Deployable Antenna Mechanisms

Cited by 20 publications

References 0 publications

Folding solar panels in space: Miura-ori and its kinematic behavior

Folding solar panels in space: Miura-ori and its kinematic behavior

Dynamic analysis and wear calculation of space deployable mechanism considering spherical joints with clearance and coating

Design and analysis of a gas generator for inflatable space structures

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