Impact of multiple launches on initial disturbances of unguided rockets

Document Type : Original Article

Authors

1 M.Sc., Aerospace Engineering Department, Military Technical College, Egypt.

2 Professor, Aerospace Engineering Department, Military Technical College, Egypt.

3 Assistant Professor, Aerospace Engineering Department, Military Technical College, Egypt.

4 Associate Professor, Aerospace Engineering Department, Military Technical College, Egypt.

10.1088/1757-899X/973/1/amme.2025.449032

Abstract

Dispersion is a key aspect as for as unguided rockets are concerned. Whether it is desired (for large area coverage) or not (for higher localized impact), dispersion shoud however, initial (launch) dispersion are a major factor. These disturbances become more pronounced, more spohisticated, and harder to investigate in case of multiple launches. This study investigates the dynamic behavior of a wheeled rocket launcher equipped with vertically aligned launch tubes, analyzing the impact of successive rocket firings on the rockets’ initial disturbances influencing their dispersion. The launcher system is modeled as a multibody system using the transfer matrix method (TMM), allowing for a simple approach by bypassing the typical manipulation of sophisticated dynamic equations. This approach is validated by comparison with results obtained using Lagrange's equations proposed in the literature, ensuring model reliability and accuracy. The analysis includes a comprehensive examination of the dynamic interactions between the launcher canister and the vehicle chassis, providing insight into how different components of the system respond to the action of sequential firings. Findings underscore the importance of optimal selection and configuration of launcher components to mitigate negative impacts on vehicle stability and rocket dispersion.
The International Conference on Applied Mechanics and Mechanical Engineering
Volume 22, Issue 22
22nd International Conference on Applied Mechanics & Mechanical Engineering, AMME-22
2025
Pages 1-10

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