We present a model for an arm movement with six degrees
of freedom. Typically, the shoulder joint is modeled as a balland-
socket joint with three DOFs. However, for the purpose of
quantifying the performance of our algorithm, we model the
shoulder with only two DOFs to match those of the industrial
robot used in this study for comparison. Fig. 1 shows the arm
model with static base reference frame 0 at the center of the
shoulder joint. Frame 1 represents shoulder internal/external
rotation, and frame 2 represents shoulder flexion/extension. The
elbow joint is a hinge joint that allows movement in one plane,
flexion/extension, represented by frame 3. The fourth joint is
a pivot joint that allows for the forearm pronation/supination,
and is represented by frame 4. Frames 5 and 6 represent wrist
flexion/extension, and twist respectively. Table I shows the D-H
parameters of the arm model, where lu is the length of the upper
arm, lf is the length of the forearm, and θi is the ith angle of
rotation.
We present a model for an arm movement with six degreesof freedom. Typically, the shoulder joint is modeled as a balland-socket joint with three DOFs. However, for the purpose ofquantifying the performance of our algorithm, we model theshoulder with only two DOFs to match those of the industrialrobot used in this study for comparison. Fig. 1 shows the armmodel with static base reference frame 0 at the center of theshoulder joint. Frame 1 represents shoulder internal/externalrotation, and frame 2 represents shoulder flexion/extension. Theelbow joint is a hinge joint that allows movement in one plane,flexion/extension, represented by frame 3. The fourth joint isa pivot joint that allows for the forearm pronation/supination,and is represented by frame 4. Frames 5 and 6 represent wristflexion/extension, and twist respectively. Table I shows the D-Hparameters of the arm model, where lu is the length of the upperarm, lf is the length of the forearm, and θi is the ith angle ofrotation.
การแปล กรุณารอสักครู่..
