A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor

Fused deposition technology (FDM), as an additive manufacturing (AM) technology, holds immense potential in the field of solid grain manufacturing. It can accomplish complex grain shaping with ultra-low-pressure ratios, which are challenging to achieve using conventional grain manufacturing processe...

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Main Authors: Shixiong Song, Quanbin Ren, Min Tang, Jiawei Shi, Jiawei Wang
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Aerospace
Subjects:
Online Access:https://www.mdpi.com/2226-4310/10/10/862
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author Shixiong Song
Quanbin Ren
Min Tang
Jiawei Shi
Jiawei Wang
author_facet Shixiong Song
Quanbin Ren
Min Tang
Jiawei Shi
Jiawei Wang
author_sort Shixiong Song
collection DOAJ
description Fused deposition technology (FDM), as an additive manufacturing (AM) technology, holds immense potential in the field of solid grain manufacturing. It can accomplish complex grain shaping with ultra-low-pressure ratios, which are challenging to achieve using conventional grain manufacturing processes. In this work, solid propellants with complex structures were made by using 3D printing. The obtained sample grains of the solid propellants had a complete structure, which conformed to the design model and had no obvious defects. Then, the combustion and mechanical properties of the printed solid propellant were obtained and analyzed. The results show that the composition of the printed solid propellant is more uniform and the performance is better than that of the conventional solid propellant. In addition, by conducting a motor experiment, it was verified that the 3D-printed grains with complex structures have the characteristic of an “ultra-low pressure ratio”. The comparative analysis revealed that the maximum working pressure was reduced by about 19.5%, the bearing load of the shell was reduced, and the mass of the shell and other bearing parts was reduced by 11.5%. The research in this paper shows that 3D-printed solid propellant technology can realize the formation of grains with complex structure, which can directly promote the solid rocket motor to obtain the “ultra-low pressure ratio” characteristic, and greatly improve the performance of solid rocket motors.
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spelling doaj.art-de2f365112e6480d95a63bd01b8715422023-11-19T15:17:11ZengMDPI AGAerospace2226-43102023-09-01101086210.3390/aerospace10100862A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket MotorShixiong Song0Quanbin Ren1Min Tang2Jiawei Shi3Jiawei Wang4School of Astronautics, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Astronautics, Northwestern Polytechnical University, Xi’an 710072, ChinaAcademy of Aerospace Solid Propulsion Technology, Xi’an 710025, ChinaThe Institute of Xi’an Aerospace Solid Propulsion Technology, Xi’an 710025, ChinaThe Institute of Xi’an Aerospace Solid Propulsion Technology, Xi’an 710025, ChinaFused deposition technology (FDM), as an additive manufacturing (AM) technology, holds immense potential in the field of solid grain manufacturing. It can accomplish complex grain shaping with ultra-low-pressure ratios, which are challenging to achieve using conventional grain manufacturing processes. In this work, solid propellants with complex structures were made by using 3D printing. The obtained sample grains of the solid propellants had a complete structure, which conformed to the design model and had no obvious defects. Then, the combustion and mechanical properties of the printed solid propellant were obtained and analyzed. The results show that the composition of the printed solid propellant is more uniform and the performance is better than that of the conventional solid propellant. In addition, by conducting a motor experiment, it was verified that the 3D-printed grains with complex structures have the characteristic of an “ultra-low pressure ratio”. The comparative analysis revealed that the maximum working pressure was reduced by about 19.5%, the bearing load of the shell was reduced, and the mass of the shell and other bearing parts was reduced by 11.5%. The research in this paper shows that 3D-printed solid propellant technology can realize the formation of grains with complex structure, which can directly promote the solid rocket motor to obtain the “ultra-low pressure ratio” characteristic, and greatly improve the performance of solid rocket motors.https://www.mdpi.com/2226-4310/10/10/862complex structuresolid propellant3D printingsolid rocket motorgrainultra-low-pressure ratio
spellingShingle Shixiong Song
Quanbin Ren
Min Tang
Jiawei Shi
Jiawei Wang
A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor
Aerospace
complex structure
solid propellant
3D printing
solid rocket motor
grain
ultra-low-pressure ratio
title A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor
title_full A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor
title_fullStr A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor
title_full_unstemmed A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor
title_short A Study on Ultra-Low-Pressure Ratio Technology on the Basis of 3D-Printed Propellant for a Solid Rocket Motor
title_sort study on ultra low pressure ratio technology on the basis of 3d printed propellant for a solid rocket motor
topic complex structure
solid propellant
3D printing
solid rocket motor
grain
ultra-low-pressure ratio
url https://www.mdpi.com/2226-4310/10/10/862
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