Design and kinematic analysis of a multifold rib modular deployable antenna mechanism

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL

Mechanical Sciences Pub Date : 2022-06-14 DOI:10.5194/ms-13-519-2022

D. Tian, Haiming Gao, Lu Jin, Rongqiang Liu, Yu Zhang, Chuang Shi, J. Xu

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引用次数: 3

Abstract

Abstract. Aiming at the urgent need for the development of space deployable antenna with large aperture and a high storage rate, a new configuration of a multifold rib modular deployable antenna mechanism is proposed. The overall structure scheme design of the antenna is carried out, and the structure composition of the module, the principle of structural topology transformation, and the scheme of mechanism deployment and locking are expounded. According to the shape and constraint relationship of the structure deployment and folded state, and based on basic theory of robotics, calculation and the analysis of key structural parameters and the included angle of rib units are carried out, and the parameterized mathematical model is established. The detailed structural design is carried out, and then the complex structures such as the center beam assembly, diagonal beam assembly, and outer beam assembly are introduced in detail. The kinematic simulation of the mechanism is carried out by using ADAMS software, and the variation law of the motion parameters is analyzed. Finally, the prototype of a hexagonal prism single-module principle is developed, and a deployment function test and verification are carried out. The simulation and test results show that the proposed mechanism can realize the motion change from folded to deployed, and no problems such as interference or clamping are observed in deployment, which verifies the correctness and the feasibility of the structural scheme and principle. Moreover, the proposed new configuration scheme not only retains the characteristics of modular structure, such as good universality and easy expansion, but also has a high storage rate and structure efficiency rate. The research results have a high reference value and relevance for basic theoretical research and the engineering application of a space deployable antenna.

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多肋模块化可展开天线机构的设计与运动学分析

摘要针对发展大口径高存储速率空间可展开天线的迫切需要，提出了一种多肋模块化可展开天线机构的新结构。进行了天线的总体结构方案设计，阐述了模块的结构组成、结构拓扑变换原理、机构展开与锁定方案。根据结构展开和折叠状态的形状和约束关系，基于机器人基本理论，对关键结构参数和肋单元夹角进行了计算和分析，并建立了参数化数学模型。进行了详细的结构设计，然后对中心梁组合、斜梁组合、外梁组合等复杂结构进行了详细的介绍。利用ADAMS软件对机构进行了运动学仿真，分析了机构运动参数的变化规律。最后，开发了六棱柱单模块原理样机，并进行了部署功能测试与验证。仿真和试验结果表明，所提出的机构能够实现从折叠到展开的运动变化，展开过程中不存在干涉、夹紧等问题，验证了结构方案和工作原理的正确性和可行性。此外，所提出的新配置方案既保留了模块化结构通用性好、易于扩展等特点，又具有较高的存储率和结构效率。研究结果对空间可展开天线的基础理论研究和工程应用具有较高的参考价值和相关性。

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来源期刊

Mechanical Sciences ENGINEERING, MECHANICAL-

CiteScore

2.20

自引率

7.10%

发文量

审稿时长

29 weeks

期刊介绍： The journal Mechanical Sciences (MS) is an international forum for the dissemination of original contributions in the field of theoretical and applied mechanics. Its main ambition is to provide a platform for young researchers to build up a portfolio of high-quality peer-reviewed journal articles. To this end we employ an open-access publication model with moderate page charges, aiming for fast publication and great citation opportunities. A large board of reputable editors makes this possible. The journal will also publish special issues dealing with the current state of the art and future research directions in mechanical sciences. While in-depth research articles are preferred, review articles and short communications will also be considered. We intend and believe to provide a means of publication which complements established journals in the field.