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Hopsan

ssimulation environment for fluid and mechatronic systems

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 4, 2026
Entity authorityQ5901303
Source-derived summary

Hopsan is a free simulation environment for fluid and mechatronic systems, developed at Linköping University. Although originally developed for simulation of fluid power systems, it has also been adopted for other domains such as electric power, flight dynamics, and vehicle dynamics. It uses bi-directional delay lines (or transmission line elements) to connect different components.

History

The development on Hopsan first began in 1977 at the Division of Hydraulics and Pneumatics at Linköping University. The first version was written in FORTRAN, with a drag-and-drop graphical user interface written in Visual Basic. In addition to the simulation capability it also had features for simulation based optimization. This used the COMPLEX direct search optimization method or a generic algorithm (GA). It also had features for frequency analysis and transfer function analysis, on simulated results. It also supported co-simulation under Simulink. Component models were written as FORTRAN subroutines.

Editorial summary

This brief starts where responsible research should: with the source description of “Hopsan” as ssimulation environment for fluid and mechatronic systems. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1977—that can be checked directly. The linked authority record independently contributes the date 2011. The account is most persuasive where Hopsan, ssimulation and environment can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as ssimulation environment for fluid and mechatronic systems. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 4, 2026. The linked authority identifier is Q5901303. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1977.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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Source & attribution

This entry incorporates text from Hopsan” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.