A mechanical analysis of woodpecker drumming and its application to shock-absorbing systems
@article{Yoon2011AMA, title={A mechanical analysis of woodpecker drumming and its application to shock-absorbing systems}, author={Sang‐Hee Yoon and Sungmin Park}, journal={Bioinspiration \& Biomimetics}, year={2011}, volume={6}, pages={016003} }
A woodpecker is known to drum the hard woody surface of a tree at a rate of 18 to 22 times per second with a deceleration of 1200 g, yet with no sign of blackout or brain damage. As a model in nature, a woodpecker is studied to find clues to develop a shock-absorbing system for micromachined devices. Its advanced shock-absorbing mechanism, which cannot be explained merely by allometric scaling, is analyzed in terms of endoskeletal structures. In this analysis, the head structures (beak, hyoid…
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References
SHOWING 1-10 OF 39 REFERENCES
Mechanical Evaluation of the Skeletal Structure and Tissue of the Woodpecker and Its Shock Absorbing System
- Biology
- 2006
It is considered that woodpecker has the advanced impact-proof system relating with not only the head part but also with the whole body, as the unique states of hyoid bone, skull, tissue and brain.
Woodpecker-inspired shock isolation by microgranular bed
- Engineering
- 2009
This paper presents a woodpecker-inspired shock isolation (SI) using a microgranular bed to protect micromachined electronic devices (MEDs) for high-g military applications where mechanical…
Structure and mechanical behavior of a toucan beak
- Engineering, Materials Science
- 2005
Woodpecker pecking: how woodpeckers avoid brain injury
- Biology
- 2006
There are three keys to woodpeckers' ability to withstand high decelerations: their small size, which reduces the stress on the brain for a given acceleration; the short duration of the impact, which increases the tolerable acceleration; and the orientation of the brain within the skull,Which increases the area of contact between the brain and the skull.
A Quantitative Analysis of Woodpecker Drumming
- Environmental Science
- 1998
Modulation of the drum in sapsucker species could minimize signal equivocation between syntopic woodpecker species with a matching introductory cadence, postulated as a possible selective pressure favoring the diagnostic long call prevalent in the species, rather than drumming.
Measurement of stress-strain and vibrational properties of tendons
- Engineering
- 2003
The authors present a new non-intrusive experimental procedure based on laser techniques for the measurement of mechanical properties of tendons. The procedure is based on the measurement of the…
Passive low pass filtering effect of mechanical vibrations by a granular bed composed of microglass beads
- Engineering, Physics
- 2006
Passive low pass filtering characteristics of a granular bed composed of microglass beads (MGBs) are investigated for military applications to a shock isolator. The granular bed attenuates the…
Viscoelastic properties of cartilage-subchondral bone complex in osteoarthritis
- MedicineJournal of medical engineering & technology
- 2004
The ‘unaffected’ (lateral) tibial condyles in medial compartment osteoarthritic knees seem to preserve their viscoelastic properties; it is worth considering a hemiarthroplasty.
A woodpecker hammer
- Physics
- 2007
Abstract Woodpecker can be modelled as a low-inertia hammer. It uses the angular momentum of its body, generated by contraction of its leg muscles, to accelerate its head towards the tree, which it…
Natural sway frequencies and damping ratios of trees: concepts, review and synthesis of previous studies
- Environmental ScienceTrees
- 2003
Previous studies that measured the natural frequencies and damping ratios of conifer trees were reviewed and results synthesized. Analysis of natural frequency measurements from 602 trees, belonging…