The use of object-oriented techniques and CORBA in astronomical instrumentation control systems

2004 ◽  
Author(s):  
Nigel A. Dipper ◽  
Colin Blackburn
Keyword(s):  
Control Systems ◽  
Object Oriented ◽  
Astronomical Instrumentation

An Open Code for the Dynamic Simulation of Multibody Systems

2004 ◽  
Author(s):  
Pietro Fanghella ◽  
Carlo Galletti ◽  
Giorgio Torre
Keyword(s):  
Control Systems ◽  
Multibody Systems ◽  
Object Oriented ◽  
General Purpose ◽  
External Control ◽  
Common Environment ◽  
Flexible Bodies ◽  
Kinematic Chains ◽  
Dynamic Simulator ◽  
User Friendly

The paper presents several features of a dynamic simulator for multibody systems. Its main characteristics are the following: it can deal with mechanisms with open and closed kinematic chains, allows definitions of rigid and flexible bodies, permits definitions of complex non-standard dynamic actions by a powerful and well-known general-purpose simulation package, and provides links to user-friendly interfaces for result displaying and interfacing with external control systems. In order to perform all these actions, a common environment based on Matlab has been established. The software is implemented using the Matlab object-oriented language. The first part of the paper provides a basic discussion of the mathematical approach followed to model multibody systems, then the actual software implementation is described. The designed software architecture is open and allows great model generality; moreover, the software can be optimized and tailored to specific multibody models in order to obtain good computational efficiency. Integration aspects in Simulink and VRML environments are analyzed.

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