Geometry and Kinematics of a Convertible's Rear Side Window

Research output: Contribution to journalArticle

Abstract

The design of rear side windows of convertibles (cabriolets) and their
motion while being retracted contains interesting geometric and kinematic issues.
On the one hand, the space between the door and the rear wheel arch is limited.
On the other hand, the window pane has to move through the sealing slit with
as little friction as possible. These turn out to be two severe constraints for the
window surface and its motion.
In order to allow for the crammed conditions we rst compute a spatial motion
that assumes prescribed positions and obeys certain side conditions. Having obtained
this spatial motion we can replace the given window surface by a kinematic
surface which perfectly moves through the sealing slit. Eventually, we construct
a set of possible window surfaces. This way the engineer gets a variety of options
to choose from.
Original languageEnglish
Pages (from-to)101-114
Number of pages14
JournalJournal for geometry and graphics
Volume20
Issue number1
Publication statusPublished - Aug 2016

Keywords

  • motion interpolation; motion design; kinematic surface; car window design

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