To simplify the complicated design process of deployable/retractable structures, a new design process is developed. The process is divided into three phases： the concept design phase, the model phase and the optimiza...To simplify the complicated design process of deployable/retractable structures, a new design process is developed. The process is divided into three phases： the concept design phase, the model phase and the optimization phase. In each phase, different parameter targets have to be fulfilled. According to three phases, a deployable/retractable mast composed of four right triangle prism modules in the longitudinal direction is designed. It can be deployed and folded simultaneously by the linear movements of sleeve-joints. The deployable and retractable movement of the mast is analyzed and key joint forms are designed. Then bar diameters and joint forms are modified based on mast structural mechanics characteristics in the optimization phase. Finally a 1：1 scaled model mast is built to verify the design and the optimization. Analytical results show that the model mast has the advantages of simple locking mechanism, fewer types of joints and bars, so it can be easily manufactured.展开更多
Space deployable masts,as one of the most widely used branches of space deployable structures,can provide driving,positioning,and transmission functions for spacecraft in orbit,which are irreplaceable in complex space...Space deployable masts,as one of the most widely used branches of space deployable structures,can provide driving,positioning,and transmission functions for spacecraft in orbit,which are irreplaceable in complex space activities.The nonmagnetic telescopic tubular mast(NMTTM)is designed and manufactured by the Shenyang Institute of Automation,Chinese Academy of Sciences,aboard the SATech-01 satellite to keep the magnetic probe assembly away from magnetic interference and realize global magnetic field measurement.The NMTTM can withstand complicated vibration and shock during rocket launching in the retracted state of 0.95 m,while it can be stably released and deployed to 5.28 m in orbit.NMTTM was successfully launched into Sun-synchronous orbit on 27 July 2022,fully deployed,and generated the positioning signal after a duration of 19 min and 16 s for the deployment process on 7 November.This paper focuses on the whole process of NMTTM from mission requirements to structure design and manufacture,through to releasing,deployment,and locking technology,environmental simulation tests,up to on-orbit deployment verification,which provides valuable experience for the subsequent development and application of large-scale space deployable masts.展开更多
文摘To simplify the complicated design process of deployable/retractable structures, a new design process is developed. The process is divided into three phases： the concept design phase, the model phase and the optimization phase. In each phase, different parameter targets have to be fulfilled. According to three phases, a deployable/retractable mast composed of four right triangle prism modules in the longitudinal direction is designed. It can be deployed and folded simultaneously by the linear movements of sleeve-joints. The deployable and retractable movement of the mast is analyzed and key joint forms are designed. Then bar diameters and joint forms are modified based on mast structural mechanics characteristics in the optimization phase. Finally a 1：1 scaled model mast is built to verify the design and the optimization. Analytical results show that the model mast has the advantages of simple locking mechanism, fewer types of joints and bars, so it can be easily manufactured.
基金supported in part by National Key R&D Program of China(grant no.2018YFB1304600)Chinese Academy of Sciences Interdisciplinary Innovation Team(grant no.JCTD-2018-11)the Natural Science Foundation of China(grant no.51775541).
文摘Space deployable masts,as one of the most widely used branches of space deployable structures,can provide driving,positioning,and transmission functions for spacecraft in orbit,which are irreplaceable in complex space activities.The nonmagnetic telescopic tubular mast(NMTTM)is designed and manufactured by the Shenyang Institute of Automation,Chinese Academy of Sciences,aboard the SATech-01 satellite to keep the magnetic probe assembly away from magnetic interference and realize global magnetic field measurement.The NMTTM can withstand complicated vibration and shock during rocket launching in the retracted state of 0.95 m,while it can be stably released and deployed to 5.28 m in orbit.NMTTM was successfully launched into Sun-synchronous orbit on 27 July 2022,fully deployed,and generated the positioning signal after a duration of 19 min and 16 s for the deployment process on 7 November.This paper focuses on the whole process of NMTTM from mission requirements to structure design and manufacture,through to releasing,deployment,and locking technology,environmental simulation tests,up to on-orbit deployment verification,which provides valuable experience for the subsequent development and application of large-scale space deployable masts.
