Impact of multiple launches on initial disturbances of unguided rockets
Eisa, H., Mohamed, M., Saleh, S., Khalil, M. (2025). Impact of multiple launches on initial disturbances of unguided rockets. EKB Journal Management System, 22(22), 1-10. doi: 10.1088/1757-899X/973/1/amme.2025.449032
Hossam Eisa; Mahmoud Y M Mohamed; Sherief Saleh; Mostafa Khalil. "Impact of multiple launches on initial disturbances of unguided rockets". EKB Journal Management System, 22, 22, 2025, 1-10. doi: 10.1088/1757-899X/973/1/amme.2025.449032
Eisa, H., Mohamed, M., Saleh, S., Khalil, M. (2025). 'Impact of multiple launches on initial disturbances of unguided rockets', EKB Journal Management System, 22(22), pp. 1-10. doi: 10.1088/1757-899X/973/1/amme.2025.449032
Eisa, H., Mohamed, M., Saleh, S., Khalil, M. Impact of multiple launches on initial disturbances of unguided rockets. EKB Journal Management System, 2025; 22(22): 1-10. doi: 10.1088/1757-899X/973/1/amme.2025.449032

Impact of multiple launches on initial disturbances of unguided rockets

The International Conference on Applied Mechanics and Mechanical Engineering
Volume 22, Issue 22, October 2025, Page 1-10  XML PDF (819.43 K)
Document Type: Original Article
DOI: 10.1088/1757-899X/973/1/amme.2025.449032
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Authors
Hossam Eisa email 1; Mahmoud Y M Mohamed2; Sherief Saleh3; Mostafa Khalil4
1M.Sc., Aerospace Engineering Department, Military Technical College, Egypt.
2Professor, Aerospace Engineering Department, Military Technical College, Egypt.
3Assistant Professor, Aerospace Engineering Department, Military Technical College, Egypt.
4Associate Professor, Aerospace Engineering Department, Military Technical College, Egypt.
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.
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