Results 141 to 150 of about 79,822 (189)

Dynamic singular configuration of flexible manipulators

Proceedings. 2000 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2000) (Cat. No.00CH37113), 2002
In this paper, the new concept of the dynamic singular configuration of flexible manipulators using the inverse dynamics method, we need to consider this dynamic singular configuration of flexible manipulators. Without considering it, the control around the dynamic singular configuration may become unstable.
K. Kanaoka, T. Yoshikawa
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Identification and Classification of the Singular Configurations of Mechanisms

Mechanism and Machine Theory, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
ZLATANOV, DIMITER, R. G. Fenton, B. Benhabib   +2 more
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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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Controllability issues of robots in singular configurations

Proceedings. 1991 IEEE International Conference on Robotics and Automation, 2002
Examples are given that modify some oversimplified statements usually made about the motion of robots in singular configurations. A robot may be controlled in an arbitrary direction from a singular configuration if the velocity profiles are shaped in a proper way.
L. Nielsen, C. Canudas de Wit, P. Hagander   +2 more
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Singular Assembly Configurations and Configuration Bifurcation Characteristics of the SRHGSMP

Volume 2: 32nd Mechanisms and Robotics Conference, Parts A and B, 2008
In this paper, the configuration bifurcation characteristics at the vicinities of singular points going with different input parameters are investigated. Then, with the aid of the assembly configurations at the theoretical singular points, the reasons to cause the singularities are analyzed.
Yu-Xin Wang, Yu-Tong Li, Zheng Huang, Shuang-Xia Pian   +3 more
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Singular configurations and workspace of robots

Robotics and Autonomous Systems, 1988
Abstract The purpose of this paper is to explain the set-up of a general method for finding the singular configurations of a robot. Open en closed chain manipulators made out of links with single degree of freedom joints are considered. The manipulator singular configurations corresponding to inner and outer limits of workspace are found by the study
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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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Singularities of the nodal set of segregated configurations

Calculus of Variations and Partial Differential Equations, 2015
This study is motivated by the segregating behaviour, that is \(u_{i,\kappa} u_{j,\kappa} \to 0\) as \(\kappa \to + \infty\) (\(i\neq j\)), of uniformly bounded solutions to the singularly perturbed elliptic system \( -\Delta u_i=f_i(u_i)-\kappa u_i \sum_{j\neq i}g_{ij}(u_j),\) \(u_i\geq 0\), in an open, bounded smooth domain of \(\mathbb{R}^n\) (\(n ...
Zhang, Shan, Liu, Zuhan
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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 position1 of the gripper. In general, for a given set of links lengths there is only one position for the gripper.
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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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