Abstract
The article discusses features of dynamic characteristics in a parallel-staging launch vehicle's elastic design. In contrast to traditional forms of body transverse vibrations in rockets with tandem staging, the parallel-staging scheme features vibrational forms of spatial character which are associated with longitudinal and torsional vibrations of side blocks of the rocket. The attention in the paper is drawn to the simplicity and clarity of drawing up general equations of dynamics in the form of d'Alambert-Kane, as well as to the features of projections of overload forces and the main engines thrust onto the related and inertial axes.
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