Title
Kinematics for combined quasi-static force and motion control in multi-limbed robots
Abstract
This paper considers how a multi-limbed robot can carry out manipulation tasks involving simultaneous and compatible end-effector velocity and force goals, while also maintaining quasi-static stance stability. The formulation marries a local optimization process with an assumption of a compliant model of the environment. For purposes of illustration, we first develop the formulation for a single fixed based manipulator arm. Some of the basic kinematic variables we previously introduced for multi-limbed robot mechanism analysis in [1] are extended to accomodate this new formulation. Using these extensions, we provide a novel definition for static equilibrium of multi-limbed robot with actuator limits, and provide general conditions that guarantee the ability to apply arbitrary end-effector forces. Using these extended definitions, we present the local optimization problem and its solution for combined manipulation and stance. We also develop, using the theory of strong alternatives, a new definition and a computable test for quasi-static stance feasibility in the presence of manipulation forces. Simulations illustrate the concepts and method.
Year
DOI
Venue
2015
10.1109/ICRA.2015.7139830
IEEE International Conference on Robotics and Automation
Keywords
Field
DocType
end effectors,force control,manipulator kinematics,mobile robots,motion control,stability,actuator limits,end-effector force,end-effector velocity,kinematics,local optimization process,motion control,multilimbed robot,quasistatic force control,quasistatic stance stability,single fixed based manipulator arm,static equilibrium
Mechanical equilibrium,Motion control,Kinematics,Inverse kinematics,Control theory,Robot kinematics,Control engineering,Local search (optimization),Engineering,Robot,Actuator
Conference
Volume
Issue
ISSN
2015
1
1050-4729
Citations 
PageRank 
References 
0
0.34
14
Authors
2
Name
Order
Citations
PageRank
Krishna Shankar1263.56
Burdick, J.W.22988516.87