A multilegged modular robot that meanders: Investigation of turning maneuvers using its inherent dynamic characteristics

被引:22
作者
Aoi, Shinya [1 ]
Sasaki, Hitoshi [1 ]
Tsuchiya, Kazuo [1 ]
机构
[1] Kyoto Univ, Grad Sch Engn, Dept Aeronaut & Astronaut, Sakyo Ku, Kyoto 606, Japan
关键词
multilegged modular robot; turning maneuvers; meandering walk; maneuverability; Hopf bifurcation; Floquet analysis;
D O I
10.1137/060664756
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper deals with the motion of a multilegged modular robot. The robot consists of a set of homogenous modules, each of which has a body and two legs and is connected to the others through a three-degree-of-freedom rotary joint. The leg joints are manipulated to follow periodic desired trajectories, and the joints between the modules act like a passive spring with a damper. This robot has characteristic dynamic properties. Specifically, a straight walk naturally turns into a meandering walk by changing the compliance of the joints between the modules without incorporation of any oscillatory inputs. We. rst show that this transition is excited due to a Hopf bifurcation, based on a numerical simulation and Floquet analysis. Following that, we examine whether the maneuverability and agility of the robot increase by utilizing the dynamic characteristics inherent in the robot. In particular, we conduct an experiment in which the robot pursues a target moving across the floor. We propose a simple controller to accomplish the task and achieve high maneuverability and agility by making the most of the robot's dynamic features.
引用
收藏
页码:348 / 377
页数:30
相关论文
共 82 条
[61]   Dynamics and stability of legged locomotion in the horizontal plane: a test case using insects [J].
Schmitt, J ;
Garcia, M ;
Razo, RC ;
Holmes, P ;
Full, RJ .
BIOLOGICAL CYBERNETICS, 2002, 86 (05) :343-353
[62]   Mechanical models for insect locomotion: stability and parameter studies [J].
Schmitt, J ;
Holmes, P .
PHYSICA D, 2001, 156 (1-2) :139-168
[63]   Mechanical models for insect locomotion: dynamics and stability in the horizontal plane I. Theory [J].
Schmitt, J ;
Holmes, P .
BIOLOGICAL CYBERNETICS, 2000, 83 (06) :501-515
[64]   Mechanical models for insect locomotion: dynamics and stability in the horizontal plane - II. Application [J].
Schmitt, J ;
Holmes, P .
BIOLOGICAL CYBERNETICS, 2000, 83 (06) :517-527
[65]   Controlled symmetries and passive walking [J].
Spong, MW ;
Bullo, F .
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 2005, 50 (07) :1025-1031
[66]  
Staritz PJ, 2001, IEEE INT CONF ROBOT, P4180, DOI 10.1109/ROBOT.2001.933271
[67]  
Sugimoto Y, 2002, CLIMBING AND WALKING ROBOTS, P123
[68]  
TAGA G, 1995, BIOL CYBERN, V73, P113, DOI 10.1007/BF00204049
[69]   A MODEL OF THE NEURO-MUSCULO-SKELETAL SYSTEM FOR HUMAN LOCOMOTION .1. EMERGENCE OF BASIC GAIT [J].
TAGA, G .
BIOLOGICAL CYBERNETICS, 1995, 73 (02) :97-111
[70]   SELF-ORGANIZED CONTROL OF BIPEDAL LOCOMOTION BY NEURAL OSCILLATORS IN UNPREDICTABLE ENVIRONMENT [J].
TAGA, G ;
YAMAGUCHI, Y ;
SHIMIZU, H .
BIOLOGICAL CYBERNETICS, 1991, 65 (03) :147-159