A Contribution to the Real-time Simulation of Coupled Finite Element Models ofMachine Tools - a Numerical Comparison: A Contribution to the Real-time Simulation of Coupled Finite Element Models ofMachine Tools - a Numerical Comparison
In this paper the real-time simulation of finite element (FE) models ofmachine tools on a multi-processor architecture is presented. The simulationmodel is based on several FE component models that are connected by non-linearcouplings. These couplings allow relative motions of the components in a widerange. The coupled linear FE models are decomposed at the non-linear couplingnodes and each component is solved locally. The linear structure of thecomponents can be used for efficient simulation methods and the components canbe distributed to several processors for a parallel computation. Methods thatdiffer in numerical accuracy and stability, computational effort and real-timecapacity will be presented. By means of a complex example, it will beillustrated that a parallel, stable computation can be realizedtime-deterministically.