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← TechnologyWhich instability arises when a robot's inverse kinematics solver commands excessive joint accelerations?
A)Singularity avoidance instability
B)Cartesian impedance control instability
C)Chattering in PID control loop✓
D)Excessive regenerative braking torque
💡 Explanation
Chattering occurs because aggressive acceleration profiles demanded by inverse kinematics excite unmodeled high-frequency dynamics. This leads to rapid oscillations; therefore, chattering, rather than smooth motion, emerges due to controller overshoot and delays rather than direct physical limits being reached.
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