Results 251 to 260 of about 167,464,841 (288)

Classification of singular configurations for redundant manipulators

Proceedings., IEEE International Conference on Robotics and Automation, 2002
A general methodology is presented for the singularity analysis of kinematically redundant manipulators. The singular configurations are classified based on the possibility of reconfiguration into a nonsingular posture using self-motion. A procedure is presented to test for the possibility of self-motion at a singular configuration.
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Singular configurations of parallel manipulators and grassmann geometry

The International Journal of Robotics Research, 1989
Parallel manipulators have a specific mechanical architecture where all the links are connected both at the base and at the gripper of the robot. By changing the lengths of these links we are able to control the position 1 of the gripper.
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Singular configurations of structural systems

International Journal of Solids and Structures, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Enumeration of Singular Configurations for Robotic Manipulators

Journal of Mechanical Design, 1991
Kinematic singularities are important considerations in the design and control of robotic manipulators. For six degree-of-freedom manipulators, the vanishing of the determinant of the Jacobian yields the conditions for the primary singularities. Examining the vanishing of the minors of the Jacobian yields further singularities which are special cases ...
H. Lipkin, E. Pohl
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Continuous and Singular Micromagnetic Configurations

IEEE Transactions on Magnetics, 2017
Up to the present time [1965], only magnetic configurations that are continuous in the micromagnetic sense have been described in the literature. The consequences of this continuity restriction on possible types of magnetization reversal processes have received no attention. These consequences are discussed here.
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A Study of the Singular Configurations of Serial Manipulators

Journal of Mechanisms, Transmissions, and Automation in Design, 1987
A manipulator is at a singular configuration when the screws representing the instantaneous joint motions of the manipulator are linearly dependent, and the manipulator cannot be moved along an exact path with specified orientation in world coordinates.
Shih-Liang Wang, Kenneth J. Waldron
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On the infinitesimal motion of a parallel manipulator in singular configurations

Proceedings 1992 IEEE International Conference on Robotics and Automation, 2003
The author considers a specific parallel manipulator and determines the features of the infinitesimal motions associated with each of the singular configurations. It is shown that every singular configuration for a MSSM is obtained when the 6 lines associated with the links of the manipulator belong to a linear complex of lines.
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Behavior of a Pendulum with a Singular Configuration Space

Vestnik St. Petersburg University, Mathematics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Singular configurations of planar parallel manipulators

Archives of Civil and Mechanical Engineering, 2006
The paper deals with determining singular configurations for a group of 3 DOF planar parallel manipulators whose links form revolute and prismatic pairs. Relations for Jacobian matrix determinants for selected mechanisms are derived. The form of the equations differs depending on the structure of the inner part of the manipulators belonging to the ...
A. GRONOWICZ, M. PRUCNAL-WIESZTORT
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Elastic Analysis of Cylindrical Configurations With Stress Singularities

Journal of Applied Mechanics, 1972
The problem of stress analysis of a circular cylinder is considered under conditions which give rise to stress singularities. Such stresses can be produced by circular boundary discontinuities or when boundaries are subject to mixed displacement and force conditions. General solutions are obtained using transformation of the cylindrical coordinates and
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