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Zeno chattering of rigid bodies with multiple point contacts
- Publication Year :
- 2017
-
Abstract
- Ideally rigid objects establish sustained contact with one another via complete chatter (a.k.a. Zeno behavior), i.e. an infinite sequence of collisions accumulating in finite time. Alternatively, such systems may also exhibit a finite sequence of collisions followed by separation (sometimes called incomplete chatter). Earlier works concerning the chattering of slender rods in two dimensions determined the exact range of model parameters, where complete chatter is possible. We revisit and slightly extend these results. Then the bulk of the paper examines the chattering of three-dimensional objects with multiple points hitting an immobile plane almost simultaneously. In contrast to rods, the motion of these systems is complex, nonlinear, and sensitive to initial conditions and model parameters due to the possibility of various impact sequences. These difficulties explain why we model this phenomenon as a nondeterministic discrete dynamical system. We simplify the analysis by assuming linearized kinematics, frictionless interaction, by neglecting the effect of external forces, and by investigating objects with rotational symmetry. Application and extension of the theory of common invariant cones of multiple linear operators enable us to find sufficient conditions of the existence of initial conditions, which give rise to complete chatter. Additional analytical and numerical investigations predict that our sufficient conditions are indeed exact, moreover solving a simple eigenvalue problem appears to be enough to judge the possibility of complete chatter. \keywords{contact dynamics \and chattering \and Zeno behavior \and common invariant cone<br />Comment: 10 figures, some of them with subfigures
- Subjects :
- Physics
0209 industrial biotechnology
Plane (geometry)
Applied Mathematics
Mechanical Engineering
Mathematical analysis
Rotational symmetry
Aerospace Engineering
Motion (geometry)
Ocean Engineering
02 engineering and technology
Kinematics
Physics - Classical Physics
01 natural sciences
Nonlinear system
Range (mathematics)
020901 industrial engineering & automation
Control and Systems Engineering
0103 physical sciences
Electrical and Electronic Engineering
Invariant (mathematics)
Zeno's paradoxes
010301 acoustics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....eef8e2b378e04fae76bb7aada3a33bbc