EQUATIONS OF MOTION OF 2-PHASE VARIABLE MASS SYSTEMS WITH SOLID BASE

Authors
Citation
Fo. Eke et Sm. Wang, EQUATIONS OF MOTION OF 2-PHASE VARIABLE MASS SYSTEMS WITH SOLID BASE, Journal of applied mechanics, 61(4), 1994, pp. 855-860
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Mechanics
ISSN journal
0021-8936
Volume
61
Issue
4
Year of publication
1994
Pages
855 - 860
Database
ISI
SICI code
0021-8936(1994)61:4<855:EOMO2V>2.0.ZU;2-7
Abstract
This paper develops dynamical equations for variable mass systems that can be viewed at any given instant, as comprising a solid phase and a fluid phase. The equations of translational and rotational motion are presented, and several versions of each are given. It is shown that s ome versions have major advantages over others because they involve pa rameters that are relatively easy to estimate in practical problems, a nd make close-form solutions possible without the usual penalty of dra stic simplifying assumptions. A simple rocket example is presented, an d shows that instability cannot be ruled out for such systems. It is s hown that system and combustion chamber geometry play a crucial role i n the attitude stability of such systems.