- Analyze and evaluate the robot by
- Solving Inverse Kinematics,
- Calculating the Torque working on each Joint, and
- Calculating the Manipulability of Robot being designed.
Demonstration
The handling robot in the following "handling robot design support system"
demonstrations is a robot with 3 joints and 3 arms.
1) Forward Kinematics
Deducing the position of the end-effector (Px,Py,Pz) in terms of
the length of each arm (l1,l2,l3) and the rotation angle of each joint
(
1,
2,
3).
2) Inverse Kinematics
Calculating the desired joint rotation angles (
1,
2,
3) to move the
end-effector to a given position (Px,Py,Pz). Since this problem
have more than two solutions, filtering to reduce the number of
solutions is demonstrated by restricting the rotation angle of a
certain joint.
3) Calculation of Torque and Evaluation of Manipulability
By using the forward kinematics results (Px,Py,Pz) and giving the
force working on the end effector (Fx,Fy,Fz), equations to calcu-
late the torque working on each joint (T1,T2,T3) and the manipu-
lability (D) are deduced. Then, by placing constraints on moving
the end-effector, the equations for torques and manipulability are
simplified.
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