Meeting Abstract S1-3.5  Jan. 5   Work of Detachment is Controllable in Gecko Setal Arrays GRAVISH, N*; WILKINSON, M; AUTUMN, K; Lewis & Clark College; Lewis & Clark College; Lewis & Clark College autumn@lclark.edu Gecko setae are anisotropic in adhesive function. Comprised of thousands of angled hairs, setal arrays attach strongly when dragged along their natural curvature. […]

Meeting Abstract S1-3.8  Jan. 5  Towards a realistic model of insect locomotion KUKILLAYA, R.P.*; HOLMES, P.J.; Princeton University, New Jersey; Princeton University, New Jersey rkukilla@princeton.edu We develop a hexapedal model to describe insect locomotion in the horizontal (ground) plane. The head-thorax-body is modeled as a single rigid body, and leg masses and inertias and joint dissipation are […]

Meeting Abstract S1-3.2  Jan. 5  The Relevance of Resonant Frequency in Running Cockroaches Modeled by a Spring-loaded, Inverted Pendulum DUDEK, DM*; SRINIVASAN, M; ROGALE, K; KUKILLAYA, R; HOLMES, P; FULL, RJ; Univ. of British Columbia; Princeton Univ.; Princeton Univ.; Princeton Univ.; Princeton Univ.; Univ. of California, Berkeley dudek@zoology.ubc.ca An array of morphologically diverse runners, from insects to […]

Meeting Abstract S1-3.16  Jan. 5  The Poise that refreshes: dynamics of internal food transport in a butterfly SOCHA, J.J.**; WATERS, J.S.; WESTNEAT, M.W.; LABARBERA, M.; COOK, S.; FEZZAA, K.; LEE, W.K.; Argonne National Laboratory; Arizona State University; Field Museum; University of Chicago; University of Utah; Argonne National Laboratory; Argonne National Laboratory jjsocha@midway.uchicago.edu Butterflies feed by sucking fluids […]

Meeting Abstract S1-3.6  Jan. 5  The Mechanism of Rapid Running in Weak Sand GOLDMAN, D.I.*; KORFF , W.L.; WEHNER, M.; BERNS, M.S.; FULL, R.J.; Univ. of California, Berkeley; Caltech; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley digoldma@berkeley.edu Locomotion on granular media is unlike locomotion on rigid ground because during a step the […]

Meeting Abstract S1-3.11  Jan. 5  Testing Control Models In Rapid Running Insects Using Lateral Ground Translation REVZEN, Shai*; BISHOP-MOSER, Joshua; SPENCE, Andrew; FULL, Robert/J; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley shrevz@berkeley.edu Perturbation of simple passive, dynamic models of legged locomotion suggest the possibility of self-stabilization with minimal […]

Meeting Abstract S1-3.7  Jan. 5  Studies of surface drag in a fluidized bed to discover principles of locomotion on sand. KORFF, Wyatt L.*; GOLDMAN, Daniel I.; California Institute of Technology; Univ. of California, Berkeley korff@caltech.edu Terrestrial animals that live in or on sandy habitats contend with a dynamic environment that can deform and flow in response to […]

Meeting Abstract S1-3.3  Jan. 5  Similar Elastic Modulus of Setal Keratin for Two Species of Gecko PEATTIE, A M*; MAJIDI, C; CORDER, A B; FULL, R J; Univ. of California, Berkeley peattiea@socrates.berkeley.edu Typical bulk adhesives are characterized by soft, tacky materials with elastic moduli well below 1 MPa. Geckos possess subdigital adhesives composed mostly of β-keratin, a […]

Meeting Abstract S1-3.9  Jan. 5  Passive Muscle Facilitates Rapid Perturbation Recovery in an Insect Leg LIBBY, T.*; FULL, R.J.; Univ of California, Berkeley tlibby@berkeley.edu Isolated and intact legs of cockroaches begin to recover from vertically directed impulse perturbations within 5 ms and return to within 99% of their original position within the swing phase duration. This response […]

Meeting Abstract S1-3.13  Jan. 5  Insects Running on Compliant Surfaces SPENCE, Andrew J.*; REVZEN, Shai; YEATES, Kyle; MULLENS, Chris; FULL, Robert J.; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley; Univ. of California, Berkeley aspence@nature.berkeley.edu Human runners and hoppers attempt to adjust their leg stiffness to maintain similar center […]