The geometry of unfolding tree leaves

被引：139

作者：

Kobayashi, H ^{[1
]}

Kresling, B ^{[1
]}

Vincent, JFV ^{[1
]}

机构：

[1] Univ Reading, Ctr Biomimet, Reading RG6 6AT, Berks, England

来源：

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 1998年 / 265卷 / 1391期

关键词：

Miura-Ori; unfolding; leaf opening; deployable structure; solar panel;

D O I：

10.1098/rspb.1998.0276

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Leaves of hornbeam (Carpinus betulus) and beech (Fagus sylvaticus) were modelled to a first approximation as plane surfaces, with straight parallel folds, using numerical methods. In both species the lateral veins, when the leaves are outstretched, are angled at 30-50 degrees from the centre vein. A higher angle allows the leaf to be folded more compactly within the bud, but it takes longer to expand. This may allow the plant to optimize the timing of leaf deployment with ecological and physiological conditions.

引用

页码：147 / 154

页数：8

共 17 条

[1] WING FOLDING AND FREE-FLIGHT KINEMATICS IN COLEOPTERA (INSECTA) - A COMPARATIVE-STUDY [J].

BRACKENBURY, JH .

JOURNAL OF ZOOLOGY, 1994, 232 :253-283

[2] FULLER,BUCKMINSTER TENSEGRITY STRUCTURES AND MAXWELL,CLERK RULES FOR CONSTRUCTION OF STIFF FRAMES [J].

CALLADINE, CR .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1978, 14 (02) :161-172

[3]

Delarue J. M., 1991, P 2 INT S STUTTG 2, P31

[4]

Guest S. D., 1992, 1st International Seminar on Structural Morphology, P203

[5] THE FOLDING OF TRIANGULATED CYLINDERS .2. THE FOLDING PROCESS [J].

GUEST, SD ;

PELLEGRINO, S .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1994, 61 (04) :778-783

[6] THE FOLDING OF TRIANGULATED CYLINDERS .1. GEOMETRIC CONSIDERATIONS [J].

GUEST, SD ;

PELLEGRINO, S .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1994, 61 (04) :773-777

[7] The folding of triangulated cylinders .3. Experiments [J].

Guest, SD ;

Pellegrino, S .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1996, 63 (01) :77-83

[8]

Haas F., 1994, THESIS U EXETER UK

[9]

HERBIG A, 1991, P 2 INT S SFB 230 2, P109

[10]

KESEL AB, 1994, P 3 INT S SFB 230 ST, P181

← 1 2 →