Paper
25 October 2023 Study on adaptability of mechanical structure of fully-loaded solid rocket motor
Chunhong Liu, Ming Zhang, Liang Ma, Qingpin Li
Author Affiliations +
Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128012Z (2023) https://doi.org/10.1117/12.3007629
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China
Abstract
In view of some key technical problems of fully-loaded SRM, the measures to be taken in order to avoid the problems of structural interference, thermal debonding, and the mismatch of internal and external pressure in the gap between the insulated case and the coated grain are proposed from the point of view of mechanical structural adaptability. The results show the propellant with good tensile strength, the liner with good interface peeling strength, and the stress-release ring of ablative material should be selected as far as possible for end-burning propellant grain; the fillers of stress-release ring material should have low thermal conductivity and appear to melt at high temperature to reduce the thermal failure of adhesive property ;for fully-loaded SRM ,strict attention should be paid to the dimensional chains among the propellant grain ,the insulated case ,the nozzle and the top cover. The key focus is the air guide structure and charge exhaust process of motor with long stress release boot.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Chunhong Liu, Ming Zhang, Liang Ma, and Qingpin Li "Study on adaptability of mechanical structure of fully-loaded solid rocket motor", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128012Z (25 October 2023); https://doi.org/10.1117/12.3007629
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KEYWORDS
Coating

Combustion

Interfaces

Solids

Ablation

Vacuum chambers

Materials properties

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