TITLE:
Modeling and Validation of Thrust Prediction of Underwater Solid Rocket Motor
AUTHORS:
Shilin Hu, Chao Yin, Wei Kang, Muyao Xue
KEYWORDS:
Power System Design, Underwater Vehicle, Solid Rocket Motor, Thrust Prediction
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.12 No.4,
November
27,
2024
ABSTRACT: The solid rocket motor driven system is one of the common ways for submarines to launch underwater missiles. It has significant advantages in improving the missile’s water exit speed, anti-interference capability, and enemy striking power. The prediction of the underwater loading is a preliminary factor for the power system design of the underwater vehicle. This paper presents a rapid prediction method and validated by the experimental study for the underwater thrust of the solid rocket motor. Based on the potential flow assumption of the water field, a model of the bubble and a one-dimensional quasi-steady model of the nozzle are established to directly solve the flow status of the nozzle. The aerodynamic thrust and hydrodynamic thrust have been calculated and analyzed. The calculation results are within 5% error of the experimental results. Moreover, a design platform to predict the underwater thrust of the solid rocket motor has been developed based on Python and the PyQt library, which shows excellent system adaptability and computational efficiency.