Equations of motion are derived for torque-free, elastic, dissipative systems possessing a finite number of degrees of freedom. The equations are linearized about a particular solution in the variables describing the 'internal' configuration of the system, and are then used to produce a computer program which permits the user to obtain information about motions of a given system without writing any computer code. The FORTRAN code for this program is listed in detail together with user instructions and two illustrative examples. Techniques are investigated for modifying the equations governing the motions of dynamical systems in such a way that simulations based on these modified equations execute faster on a digital computer than simulations based on the unmodified equations. For a particular multi-degree-of-freedom system and a class of two-degree-of-freedom systems, methods are described for generating such equations, and it is shown that they can be integrated more rapidly on a digital computer than can the unmodified equations.
Simulation of attitude motions of spacecraft
Simulation des Flugverhaltens von Raumschiffen
1976
161 Seiten
Hochschulschrift
Englisch