On modeling and dynamics of a multiple launch rocket system. (September 2021)

• Record Type: Journal Article
• Authors: Li, Bo; Rui, Xiaoting; Wang, Guoping; Zhang, Jianshu; Zhou, Qinbo
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 235:Number 12(2021)
• Page Start: 1664
• Page End: 1686
• Publication Date: 2021-09
• Subjects: Transfer matrix method for multibody systems -- multiple launch rocket system -- mathematical modeling -- dynamics response; Aeronautics -- Periodicals; Astronautics -- Periodicals; Airplanes -- Design and construction -- Periodicals; Aerospace industries -- Periodicals; 629.1
• DOI: 10.1177/0954410020982243
• Languages: English
• ISSNs: 0954-4100

Abstract

Dynamics analysis is currently a key technique to fully understand the dynamic characteristics of sophisticated mechanical systems because it is a prerequisite for dynamic design and control studies. In this study, a dynamics analysis problem for a multiple launch rocket system (MLRS) is developed. We particularly focus on the deductions of equations governing the motion of the MLRS without rockets by using a transfer matrix method for multibody systems and the motion of rockets via the Newton–Euler method. By combining the two equations, the differential equations of the MLRS are obtained. The complete process of the rockets' ignition, movement in the barrels, airborne flight, and landing is numerically simulated via the Monte Carlo stochastic method. An experiment is implemented to validate the proposed model and the corresponding numerical results.