Progress in Lightweight Design Methods for Large-Size Panel Structures in Manned Pressurized Capsules
Source abstract
Abstract
The pressurized capsule structure provides the pressure environment for astronauts or payloads in space, which is thus considered as the most crucial structural component for manned spacecraft. The manned deep space exploration mission (MDSEM) brings new challenges to the pressurized capsule structure: extremely low structural weight, long service life, reusability and adaptability to the harsh deep space environment. The conventional welded panel pressurized capsule structure (WPPCS) is not able to meet these new requirements. To address the above challenges, this paper comprehensively expounds why the current WPPCS cannot meet the requirements of MDSEMs based on the analysis of the vibration environment and structural characteristics of the pressurized capsule structure. Furthermore, a new type of integrated panel pressurized capsule structure (IPPCS) is proposed, showing the lightweight advantage compared with WPPCS. Finally, the technical details and research results of the strength criterion, design method, material upgrading and structural integrity manufacturing process of the IPPCS are fully introduced. The conclusions drawn in this paper will provide useful and meaningful references for the future development of large-size, lightweight pressurized capsule structures.
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Research context
OpenAlex topics: Structural Analysis and Optimization · Mechanical Engineering and Vibrations Research · Spacecraft and Cryogenic Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Beijing Institute of Spacecraft System Engineering, Beijing 100094, China
China National International Science and Technology Cooperation Base, Beijing Jiaotong University, Beijing 100044, China
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
Funding
National Key Research and Development Program project of China
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