Title
Modeling the Motion of Microrobots on Surfaces Using Nonsmooth Multibody Dynamics
Abstract
We apply nonsmooth multibody dynamics to describe the motion of a microrobot which is driven by the wireless resonant magnetic microactuator. We first analyze the robot using a simplified analytical model, which allows us to derive characteristic and nondimensional parameters that describe its dynamics. We then perform a numerical study to analyze the nonlinearities. We predict several nonintuitive phenomena, such as switching of the direction of the velocity with changing excitation frequency, and show that both erratic and controlled motions occur under specific conditions. Our numerical results are qualitatively consistent with experimental observations and indicate that previous speculations on the motion mechanism were incorrect. The modeling method is general and readily applies to other microrobots as well.
Year
DOI
Venue
2012
10.1109/TRO.2012.2199010
IEEE Transactions on Robotics
Keywords
Field
DocType
Force,Magnetomechanical effects,Mathematical model,Robots,Numerical models,Magnetic forces,Substrates
Wireless,Multibody system,Control theory,Control engineering,Numerical analysis,Robot,Mathematics,Mobile robot,Microactuator
Journal
Volume
Issue
ISSN
28
5
1552-3098
Citations 
PageRank 
References 
1
0.42
9
Authors
5
Name
Order
Citations
PageRank
Zoltán Nagy1329.87
Remco I. Leine2375.27
Dominic R. Frutiger39610.23
Christoph Glocker4284.64
Bradley J. Nelson51263202.74