Flends: Generalized fillets via b-splines

Zachary D. Eager, John F. Dannenhoffer

Research output: Chapter in Book/Entry/PoemConference contribution


The methods for creating transition surfaces (e.g. fillets, chamfers, etc.), as implemented in many solid modelers, are restrictive and fragile. For example, the extent of a fillet on the two surfaces are linked and cannot be specified separately. Also, both fillets and chamfers yield curvature discontinuities where they meet the original surfaces, which is known to be sub-optimal aerodynamically. In this paper, we present more robust and flexible methods for creating transition surfaces using B-spline surfaces. These methods are solid modeler agnostic, however we’ve implemented them using the Engineering Sketch Pad (ESP).

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
StatePublished - Jan 1 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: Jan 7 2019Jan 11 2019

Publication series

NameAIAA Scitech 2019 Forum


ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego

ASJC Scopus subject areas

  • Aerospace Engineering


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