Abstract:
:Limitations in actuation, sensing, and computation have forced small legged robots to rely on carefully tuned, mechanically mediated leg trajectories for effective locomotion. Recent advances in manufacturing, however, have enabled in such robots the ability for operation at multiple stride frequencies using multi-degree-of-freedom leg trajectories. Proprioceptive sensing and control is key to extending the capabilities of these robots to a broad range of operating conditions. In this work, we use concomitant sensing for piezoelectric actuation with a computationally efficient framework for estimation and control of leg trajectories on a quadrupedal microrobot. We demonstrate accurate position estimation (<16[Formula: see text] root-mean-square error) and control (<16[Formula: see text] root-mean-square tracking error) during locomotion across a wide range of stride frequencies (10 Hz-50 Hz). This capability enables the exploration of two bioinspired parametric leg trajectories designed to reduce leg slip and increase locomotion performance (e.g. speed, cost-of-transport (COT), etc). Using this approach, we demonstrate high performance locomotion at stride frequencies (10 Hz-30 Hz) where the robot's natural dynamics result in poor open-loop locomotion. Furthermore, we validate the biological hypotheses that inspired the trajectories and identify regions of highly dynamic locomotion, low COT (3.33), and minimal leg slippage (<10%).
journal_name
Bioinspir Biomimjournal_title
Bioinspiration & biomimeticsauthors
Doshi N,Jayaram K,Castellanos S,Kuindersma S,Wood RJdoi
10.1088/1748-3190/ab295bsubject
Has Abstractpub_date
2019-07-01 00:00:00pages
056001issue
5eissn
1748-3182issn
1748-3190journal_volume
14pub_type
杂志文章abstract::Numerical simulations are conducted to investigate the influences of a solid wall on the self-propelled swimming of a flexible plunging foil. It is found that the presence of a solid wall enhances the cruising speed, with the cost of increasing input power. Rigid foil can achieve high percentage increase in cruising s...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/11/4/046005
更新日期:2016-07-05 00:00:00
abstract::Unidirectional composites inspired from biological materials such as nacre are composed of stiff platelets arranged in a staggered manner within a soft matrix. Elaborate analyses have been conducted on the aforementioned composites and they are found to have excellent mechanical properties like stiffness, strength and...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aa9945
更新日期:2017-12-22 00:00:00
abstract::Films of conducting polymers when used as electrodes in an electrolytic solution oxidize and reduce under the flow of anodic and cathodic currents, respectively. The electrochemical reactions induce conformational movements of the chains, generation or destruction of free volume and interchange of ions and solvent wit...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/3/3/035004
更新日期:2008-09-01 00:00:00
abstract::Birds demonstrate that flapping-wing flight (FWF) is a versatile flight mode, compatible with hovering, forward flight and gliding to save energy. This extended flight domain would be especially useful on mini-UAVs. However, design is challenging because aerodynamic efficiency is conditioned by complex movements of th...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/2/4/002
更新日期:2007-12-01 00:00:00
abstract::Research on quadrupedal robots inspired by canids or felids have been widely reported and demonstrated. However, none of these legged robots can deal with difficult environments that include water, such as small lakes, streams, rain, mud, flooded terrain, etc. In this paper, we present for the first time a kinematic a...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab3d05
更新日期:2019-09-13 00:00:00
abstract::Passive dynamic walking is a model that walks down a shallow slope without any control or input. This model has been widely used to investigate how humans walk with low energy consumption and provides design principles for energy-efficient biped robots. However, the basin of attraction is very small and thin and has a...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab9283
更新日期:2020-07-15 00:00:00
abstract::Natural fish have evolved with an excellent swimming performance after millions of years. Based on the flexible features of the pectoral fin, this paper focuses on the kinematics and hydrodynamics of the fin when fish are swimming stably in still water in labriform mode. The locomotion mechanism based on the morpholog...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab550e
更新日期:2019-12-04 00:00:00
abstract::Burst-and-coast swimming is an intermittent mode of locomotion used by various fish species. The intermittent gait has been associated with certain advantages such as stabilizing the visual field, improved sensing ability, and reduced energy expenditure. We investigate burst-coast swimming in rummy nose tetra fish (He...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/abb521
更新日期:2020-11-07 00:00:00
abstract::In a lower extremity musculoskeletal leg, the actuation kinematics define the interaction of the actuators with each other and the environment. Design of such a kinematic chain is challenging due to the existence of the redundant biarticular actuators which simultaneously act on two joints, generating a parallel mecha...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab3896
更新日期:2019-09-06 00:00:00
abstract::Polymer nanocomposites render a range of outstanding materials from natural products such as silk, sea shells and bones, to synthesized nanoclay or carbon nanotube reinforced polymer systems. In contrast to the fast expanding interest in this type of material, the fundamental mechanisms of their mixing, phase behavior...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/11/5/055008
更新日期:2016-09-13 00:00:00
abstract::Aiming to produce bioinspired impact and puncture resistant materials, the mesocarp of the Brazil nut (Bertholletia excelsa) was characterized. The mesocarp composition was investigated by chemical extraction and its microstructure was analyzed by optical microscopy and microtomography (microCT). A compression test ev...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab2298
更新日期:2019-07-03 00:00:00
abstract::The formation aspects of a polycrystalline self-assembled bioceramic leading to the nucleation of hard-tissue mineral from a supersaturated solution are discussed. Scanning electron imaging and surface-sensitive interrogations of the nucleated mineral indicated the presence of an intermediate amorphous layer encompass...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/1/1/002
更新日期:2006-03-01 00:00:00
abstract::In this paper, the effect of torso flexibility on the energetics of quadrupedal bounding is examined in a template setting. Two reductive sagittal-plane models, one with a rigid, non-deformable torso and one with a flexible, unactuated torso are proposed. Both models feature non-trivial leg mass and inertia to capture...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/10/5/056008
更新日期:2015-09-03 00:00:00
abstract::The axonemal micro-machinery, the axial skeleton and actuator of cilia and flagella of eukaryotic cells, is able to bend and twist and generates wave trains. We already demonstrated that it can be the template to construct an active trunk robot (Cibert 2013 Bioinspir. Biomim. 8 026006). The work presented in this pape...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/11/5/056019
更新日期:2016-09-29 00:00:00
abstract::In addition to their visual sense, weakly electric fish use active electrolocation to detect and analyse objects in their nearby environment. Their ability to generate and sense electric fields combined with scanning-like swimming movements are intended to extract further parameters like the size, shape and material p...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aae23f
更新日期:2018-10-16 00:00:00
abstract::Birds fly in dynamic flight conditions while maintaining aerodynamic efficiency. This agility is in part due to specialized feather systems that function as flow control devices during adverse conditions such as high-angle of attack maneuvers. In this paper, we present an engineered three-dimensional leading-edge devi...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab36ad
更新日期:2019-08-29 00:00:00
abstract::While insect grooming has been observed and documented for over one hundred years, we present the first quantitative analysis of this highly dynamic process. Pollinating insects, like honey bees, purposely cover themselves with millions of pollen particles that, if left ungroomed, would make sensing and controlled fli...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aa5c6e
更新日期:2017-03-23 00:00:00
abstract::In the field of human motor control, the motor synergy hypothesis explains how humans simplify body control dimensionality by coordinating groups of muscles, called motor synergies, instead of controlling muscles independently. In most applications of motor synergies to low-dimensional control in robotics, motor syner...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/10/5/056016
更新日期:2015-10-08 00:00:00
abstract::The propulsive dynamics of a flexible undulating foil in a self-propelled swimming configuration near a wall is studied experimentally. Measurements of the swimming speed and the propulsive force are presented, together with image acquisition of the kinematics of the foil and particle image velocimetry (PIV) in its wa...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/10/1/016003
更新日期:2015-01-05 00:00:00
abstract::This paper provides an update on the neural control of bipedal walking in relation to bioinspired models and robots. It is argued that most current models or robots are based on the construct of a symmetrical central pattern generator (CPG). However, new evidence suggests that CPG functioning is basically asymmetrical...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aada54
更新日期:2018-09-04 00:00:00
abstract::Leading-edge tubercles on a humpback whale flipper are known to enhance its hydrodynamic performance at post-stall angles of attack (Miklosovic et al 2004 Phys. Fluids 16 39-42). We investigate vortical structures above a three-dimensional wing with tubercles using surface-oil-flow visualization and particle image vel...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aae6fc
更新日期:2018-10-26 00:00:00
abstract::This paper introduces a novel, bioinspired manipulator for minimally invasive surgery (MIS). The manipulator is entirely composed of soft materials, and it has been designed to provide similar motion capabilities as the octopus's arm in order to reach the surgical target while exploiting its whole length to actively i...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/10/3/035008
更新日期:2015-05-13 00:00:00
abstract::Bioinspiration-using insights into the function of biological systems for the development of new engineering concepts-is already a successful and rapidly growing field. However, only a small portion of the world's biodiversity has thus far been considered as a potential source for engineering inspiration. This means t...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aac96a
更新日期:2018-07-03 00:00:00
abstract::Biologically inspired robots with inherent softness and body compliance increasingly attract attention in the field of robotics. Aimed at solving existing problems with soft robots, regarding actuation technology and biological principles, this paper presents a soft bio-inspired annelid robot driven by dielectric elas...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aa50a5
更新日期:2017-01-31 00:00:00
abstract::In this paper, we study the behavioral response of rats to a robotic rat during multi-rat interaction. Experiments are conducted in an open-field where a robotic rat called WR-5 is put together with three laboratory rats. WR-5 is following one rat (target), while avoiding the other two rats (outside observers) during ...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/10/5/056011
更新日期:2015-09-28 00:00:00
abstract::In this paper, we describe the first steps in the design of a synthetic biological system based on the use of genetically modified bacteria to detect elevated pressures in soils and respond by cementing soil particles. Such a system might, for example, enable a self- constructed foundation to form in response to load ...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aabe15
更新日期:2018-05-25 00:00:00
abstract::We propose to design a small-size transmission-coupled antenna array, and corresponding radiation pattern, having high performance inspired by the female Ormia ochracea's coupled ears. For reproduction purposes, the female Ormia is able to locate male crickets' call accurately despite the small distance between its ea...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3182/5/4/046003
更新日期:2010-12-01 00:00:00
abstract::It is of interest to exploit the insight from the lateral line system of fish for flow sensing applications. In this paper, a novel fish canal lateral line-inspired pressure difference sensor is proposed by embedding an ionic polymer-metal composite (IPMC) sensor within a canal filled with viscous fluid. Such a sensor...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/ab2fa8
更新日期:2019-07-29 00:00:00
abstract::The aim of this study is the biomimetic optimisation of branched fibre-reinforced composites based on the detailed analysis of biological concept generators. The methods include analyses of the functional morphology and biomechanics of arborescent monocotyledons and columnar cacti as well as measurements and modelling...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/11/5/055005
更新日期:2016-09-07 00:00:00
abstract::Over many decades the biological surfaces of aquatic swimmers have been studied for their potential as drag reducing surfaces. The hydrodynamic benefit of riblets, or grooves embedded parallel to the flow which appear on surfaces such as shark skin, have been well documented. However the skin of dolphins is embedded w...
journal_title:Bioinspiration & biomimetics
pub_type: 杂志文章
doi:10.1088/1748-3190/aa5770
更新日期:2017-02-10 00:00:00