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Framework for Simulation of Coupled Systems by Aggregation

Pannu, Pukashawar LU (2015) In Master's Theses in Mathematical Sciences FMN820 20152
Mathematics (Faculty of Technology) and Numerical Analysis
Abstract
Complex systems can be described by coupling several standalone ODE problems that communicate with input and output signals. The need for simulating such systems has increased in recent years. A major issue when simulating coupled ODE systems has been to communicate coupling relations properly throughout integration and how to handle discontinuities. In this paper a concept that aggregates several ODEs into a single problem is presented. For each right-hand-side function evaluation the aggregated problem communicates coupling relations ensuring that all inputs and outputs in the system are uptodate.
Experiments are conducted on systems containing algebraic loops, discontinuities and non-linear couplings; the results suggest potential for... (More)
Complex systems can be described by coupling several standalone ODE problems that communicate with input and output signals. The need for simulating such systems has increased in recent years. A major issue when simulating coupled ODE systems has been to communicate coupling relations properly throughout integration and how to handle discontinuities. In this paper a concept that aggregates several ODEs into a single problem is presented. For each right-hand-side function evaluation the aggregated problem communicates coupling relations ensuring that all inputs and outputs in the system are uptodate.
Experiments are conducted on systems containing algebraic loops, discontinuities and non-linear couplings; the results suggest potential for the concept. (Less)
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author
Pannu, Pukashawar LU
supervisor
organization
course
FMN820 20152
year
type
H2 - Master's Degree (Two Years)
subject
keywords
FMU, FMI, Coupled systems, Aggregation, Aggregated systems, Coupled simulation, PyFMI
publication/series
Master's Theses in Mathematical Sciences
report number
LUTFNA-3036-2015
ISSN
1404-6342
other publication id
2015:E49
language
English
id
8227610
date added to LUP
2015-11-26 14:46:12
date last changed
2015-12-14 13:32:12
@misc{8227610,
  abstract     = {Complex systems can be described by coupling several standalone ODE problems that communicate with input and output signals. The need for simulating such systems has increased in recent years. A major issue when simulating coupled ODE systems has been to communicate coupling relations properly throughout integration and how to handle discontinuities. In this paper a concept that aggregates several ODEs into a single problem is presented. For each right-hand-side function evaluation the aggregated problem communicates coupling relations ensuring that all inputs and outputs in the system are uptodate.
Experiments are conducted on systems containing algebraic loops, discontinuities and non-linear couplings; the results suggest potential for the concept.},
  author       = {Pannu, Pukashawar},
  issn         = {1404-6342},
  keyword      = {FMU,FMI,Coupled systems,Aggregation,Aggregated systems,Coupled simulation,PyFMI},
  language     = {eng},
  note         = {Student Paper},
  series       = {Master's Theses in Mathematical Sciences},
  title        = {Framework for Simulation of Coupled Systems by Aggregation},
  year         = {2015},
}