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3 years ago in Robotics By Rinku

How is singularity determination different for redundant versus non-redundant manipulators?

How does manipulator redundancy fundamentally change the nature and detection of kinematic singularities?

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By Keerthi Gupta Answered 2 years ago

The core method—analyzing the Jacobian matrix for loss of rank—applies to both. For non-redundant arms, singularity occurs when det(J)=0. For redundant arms, you must additionally consider *null space* singularities. The null space consists of joint motions that produce no end-effector motion. Singularities can occur when this null space changes dimension, affecting the robot's ability to perform self-motions or optimize secondary goals.

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