The Atlantic razor clam, Ensis directus, burrows underwater by expanding and contracting its valves to fluidize the surrounding soil. Its digging method uses an order of magnitude less energy than would be needed to push the clam directly into soil, which could be useful in applications such as anchoring and sensor placement. This paper presents the theoretical basis for the timescales necessary to achieve such efficient digging and gives design parameters for a device to move at these timescales. It then uses RoboClam, a robot designed to imitate the razor clam's movements, to test the design rules. It was found that the minimum contraction time is the most critical timescale for efficient digging and that efficient expansion times vary more widely. The results of this paper can be used as design rules for other robot architectures for efficient digging, optimized for the size scale and soil type of the application.
Issue Section:
Design Innovation Paper
References
1.
Winter
, V, A. G.
, Deits
, R.
, and Hosoi
, A. E.
, 2012
, “Localized Fluidization Burrowing Mechanics of Ensis Directus
,” J. Exp. Biol.
, 215
(12
), pp. 2072
–2080
.2.
Terzaghi
, K.
, Peck
, R.
, and Mesri
, G.
, 1996
, Soil Mechanics in Engineering Practice
, 3rd, ed., Wiley
, New York
.3.
Robertson
, P. K.
, and Campanella
, R. G.
, 1983
, “Interpretation of Cone Penetration Tests. Part I: Sand
,” Can. Geotech. J.
, 20
(4
), pp. 718
–733
.4.
Trueman
, E.
, 1975
, The Locomotion of Soft-Bodied Animals
, Edward Arnold
, London
.5.
Rosenberg
, R.
, and Ringdahl
, K.
, 2005
, “Quantification of Biogenic 3-D Structures in Marine Sediments
,” J. Exp. Mar. Biol. Ecol.
, 326
(1
), pp. 67
–76
.6.
Trueman
, E.
, 1966
, “The Dynamics of Burrowing of Some Common Littoral Bivalves
,” J. Exp. Biol.
, 44
, pp. 469
–492
.7.
Dorgan
, K. M.
, Jumars
, P. A.
, Johnson
, B.
, Boudreau
, B. P.
, and Landis
, E.
, 2005
, “Burrowing Mechanics: Burrow Extension by Crack Propagation
,” Nature
, 433
(7025
), pp. 475
–475
.8.
Aoyama
, J.
, Shinoda
, A.
, Sasai
, S.
, Miller
, M. J.
, and Tsukamoto
, K.
, 2005
, “First Observations of the Burrows of Anguilla Japonica
,” J. Fish Biol.
, 67
(6
), pp. 1534
–1543
.9.
Atkinson
, R. J. A.
, Pelster
, B.
, Bridges
, C. R.
, Taylor
, A. C.
, and Morris
, S.
, 1987
, “Behavioral and Physiological Adaptations to a Burrowing Lifestyle in the Snake Blenny, Lumpenus Lampretaeformis, and the Red Band-Fish, Cepola Rubescens
,” J. Fish Biol.
, 31
(5
), pp. 639
–659
.10.
Wallace
, H. R.
, 1968
, “The Dynamics of Nematode Movement
,” Ann. Rev. Pathol.
, 6
, pp. 91
–114
.11.
Jung
, S.
, 2010
, “Caenorhabditis Elegans Swimming in a Saturated Particulate System
,” Phys. Fluids
, 22
, p. 031903.12.
Winter
, V, A. G.
, Deits
, R.
, and Dorsch
, D.
, 2013
, “Critical Timescales for Burrowing in Undersea Substrates Via Localized Fluidization, Demonstrated by RoboClam: A Robot Inspired by Atlantic Razor Clams
,” ASME
Paper No. DETC2013-12798, pp. V06AT07A007.13.
Trueman
, E. R.
, 1966
, “Bivalve Mollusks: Fluid Dynamics of Burrowing
,” Science
, 152
(3721
), pp. 523
–525
.14.
Trueman
, E. R.
, 1967
, “The Dynamics of Burrowing in Ensis (bivalvia)
,” Proc. R. Soc. London B Biol. Sci.
, 166
(1005
), pp. 459
–476
.15.
Winter
, V, A. G.
, Deits
, R.
, Dorsch
, D.
, Slocum
, A.
, and Hosoi
, A. E.
, 2014
, “Razor Clam to RoboClam: Burrowing Drag Reduction Mechanisms and Their Robotic Adaptation
,” Bioinspiration Biomimetics
, 9
(3
), pp. 4
–5
.16.
Holland
, A. F.
, and Dean
, J. M.
, 1977
, “The Biology of the Stout Razor Clamtagelus Plebeius: I. Animal-Sediment Relationships, Feeding Mechanism, and Community Biology
,” Chesapeake Sci.
, 18
(1
), pp. 58
–66
.17.
Energizer Battery Company
, 2009
, “Energizer E91 AA Battery Product Datasheet
,” Energizer Holdings, Inc., St. Louis, MO.18.
Winter
, V, A. G.
, 2008
, “Drag Reduction Mechanisms Employed by Burrowing Razor Clams (Ensis Directus)
,” 61st Annual Meeting of the American Physical Society Division of Fluid Dynamics, San Antonio, TX, Nov. 23, 2008.19.
Winter
, V, A. G.
, and Hosoi
, A. E.
, 2011
, “Identification and Evaluation of the Atlantic Razor Clam (Ensis Directus)
,” Integr. Comp. Biol.
, 51
(1
), pp. 151
–157
.20.
Kundu
, P.
, and Cohen
, I.
, 2004
, Fluid Mechanics
, 3rd, ed., Elsevier Academic Press
, San Diego, CA
.21.
Lambe
, T.
, and Whitman
, R.
, 1969
, Soil Mechanics
, Wiley
, New York
.22.
Slocum
, A.
, 1992
, Precision Machine Design
, Society of Manufacturing Engineers
, Dearborn, MI.23.
Avallone
, E. A.
, and Baumeister
, T.
, III, 1996
, Marks' Standard Handbook for Mechanical Engineers
, 10th, ed., McGraw-Hill
, New York
.24.
Winter
, V, A. G.
, Hosoi
, A. E.
, Slocum
, A.
, and Dorsch
, D.
, 2009
, “The Design and Testing of RoboClam A Machine Used to Investigate and Optimize Razor Clam-Inspired Burrowing Mechanisms for Engineering Applications
,” ASME
Paper No. DETC2009-86808, pp. 721–726.25.
Richardson
, J.
, and Zaki
, W.
, 1954
, “Sedimentation and Fluidization: Part I
,” Chem. Eng. Res. Des.
, 32
(a
), pp. 35
–53
.26.
Khan
, A.
, and Richardson
, J.
, 1989
, “Fluid-Particle Interactions and Flow Characteristics of Fluidized Beds and Settling Suspensions of Spherical Particles
,” Chem. Eng. Commun.
, 78
(1
), pp. 111
–130
.27.
Wen
, C.
, and Yu
, Y.
, 1966
, “Mechanics of Fluidization
,” Chem. Eng. Prog. Symp. Ser.
, 62
, pp. 100
–111
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