Bio-inspired, Flexible Structures and Materials - Biotechnologies and Biomimetics for Civil Engineering - page 282

0°

0°

0°

30°

90°

Fig. 12.2 The elastic deformation in the Strelitzia reginae flower. Adapted from Lienhard et al.

( 2011 )

Fig. 12.3 Abstraction of the Flectofin mechanism via a reduction principle. Adapted from
Lienhard et al. ( 2009 )

Fig. 12.4 Abstraction of the deformation principle in the flower of S. reginae, realised with a
simple physical model. Adapted from Lienhard et al. ( 2011 )

12.4.1.2 Optimisation of the Basic Flectofin Principle

Further optimisation of the basic Flectofin principle was aimed at folding two fins
outward from one common element and thereby doubling the shaded area per
element while hardly affecting the view. In contrast to the S. reginae the elastic