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An approach originally developed for bond graphs, where energy-related heuristics were used to identify the components contributing the most to the model\u2019s salient dynamics, was extended to more heterogeneously formulated models in Modelica. A prototype toolbox was developed inside the modeling environment OpenModelica. Its applicability was demonstrated with two examples. Although the model-reduction tool cannot reduce the model completely automatically, it may still offer many useful insights and hints to the user.<\/jats:p>","DOI":"10.1177\/0037549718815338","type":"journal-article","created":{"date-parts":[[2018,11,28]],"date-time":"2018-11-28T09:56:43Z","timestamp":1543399003000},"page":"607-620","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Realization-preserving model reduction of object-oriented models using energy-based metrics"],"prefix":"10.1177","volume":"95","author":[{"given":"Anton","family":"Sodja","sequence":"first","affiliation":[{"name":"Faculty of Electrical Engineering, University of Ljubljana, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Igor","family":"\u0160krjanc","sequence":"additional","affiliation":[{"name":"Faculty of Electrical Engineering, University of Ljubljana, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6431-3861","authenticated-orcid":false,"given":"Borut","family":"Zupan\u010di\u010d","sequence":"additional","affiliation":[{"name":"Faculty of Electrical Engineering, University of Ljubljana, Slovenia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2018,11,28]]},"reference":[{"key":"bibr1-0037549718815338","doi-asserted-by":"publisher","DOI":"10.1016\/j.simpat.2012.03.009"},{"key":"bibr2-0037549718815338","doi-asserted-by":"publisher","DOI":"10.1115\/1.2977484"},{"key":"bibr3-0037549718815338","volume-title":"Applications of model order reduction for IC Modeling","author":"Ugryumova MV.","year":"2011"},{"key":"bibr4-0037549718815338","doi-asserted-by":"publisher","DOI":"10.1109\/TAC.1981.1102568"},{"key":"bibr5-0037549718815338","first-page":"200","volume-title":"IEEE\/ACM international conference on computer-aided design","author":"Sheehan BN"},{"key":"bibr6-0037549718815338","doi-asserted-by":"publisher","DOI":"10.1504\/IJHVS.2004.005449"},{"key":"bibr7-0037549718815338","unstructured":"Modelica specification. 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On using model approximation techniques for better understanding of models implemented in Modelica. In: Clau\u00df Christoph (eds.) proceedings of 8th Modelica conference, Dresden, 20\u201322 March 2011, pp.697\u2013703. Link\u00f6ping: Link\u00f6ping University Electronic Press.","DOI":"10.3384\/ecp11063697"},{"key":"bibr19-0037549718815338","volume-title":"Object-oriented modelling and simulation analysis of the automatically translated models","author":"Sodja A.","year":"2012"},{"key":"bibr20-0037549718815338","unstructured":"Modelica standard library 3.1. User\u2019s guide, http:\/\/www.modelica.org\/libraries (2010, accessed 29 October 2018)."},{"key":"bibr21-0037549718815338","doi-asserted-by":"crossref","unstructured":"Cellier FE, Greifeneder J. Modeling chemical reactions in Modelica by use of chemo-bonds. In: Casella F (eds.) proceedings of the 7th international Modelica conference, Como, 20\u201322 September 2009, pp.142\u2013150. 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