An efficient scaling methodology for dynamic models using dimensional and activity analyses

Burit Kittirungsi, Hosam Kadry Fathy, Jeffrey L. Stein

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Previous work in the literature developed similitude-based design scaling techniques that make it possible to take a proven system design and scale it to meet new desired dynamic characteristics. However, such similitude-based scaling is often too restrictive because it may not be feasible to satisfy all of the resulting scaling laws exactly. This paper uses a novel combination of activity-based model reduction and dimensional analysis to scale only the important components of a given dynamic system, thereby providing more freedom than pure similitude-based scaling. The viability of this proposed method is highlighted by two examples. The first example demonstrates the proposed efficient scaling methodology on a simple two-degree-of-freedom mass-spring-damper system. The second example uses the developed methodology to scale a fuel cell stack's air supply system design for a new set of fuel cell system power requirements. The examples highlight the flexibility that activity analysis adds to similitude-based scaling methods.

Original languageEnglish (US)
Title of host publicationProceedings of 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 - Dynamic Systems and Control Division
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Print)0791837904, 9780791837900
DOIs
StatePublished - Jan 1 2006
Event2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 - Chicago, IL, United States
Duration: Nov 5 2006Nov 10 2006

Publication series

NameAmerican Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC
ISSN (Print)1071-6947

Other

Other2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006
CountryUnited States
CityChicago, IL
Period11/5/0611/10/06

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Software

Fingerprint Dive into the research topics of 'An efficient scaling methodology for dynamic models using dimensional and activity analyses'. Together they form a unique fingerprint.

  • Cite this

    Kittirungsi, B., Fathy, H. K., & Stein, J. L. (2006). An efficient scaling methodology for dynamic models using dimensional and activity analyses. In Proceedings of 2006 ASME International Mechanical Engineering Congress and Exposition, IMECE2006 - Dynamic Systems and Control Division (American Society of Mechanical Engineers, Dynamic Systems and Control Division (Publication) DSC). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2006-14587