ME 481 - H08
Name ________________________
1) Develop a SolidWorks (SW) kinematic simulation for the four bar shown below with crank
link 2 rotating at constant 30 rpm CCW. Attach a screen shot of your mechanism. Create three
MATLAB graphs from your results. Be certain to start each plot at θ2 = 0°. Do not plot -180° ≤
θ2 ≤ 180°.
a) θ 4 [deg] as a function of θ 2 [deg] (only one full revolution)
b) θ 4 [rad/sec] as a function of θ 2 [deg] (only one full revolution)
c) θ 4 [rad/sec2] as a function of θ 2 [deg] (only one full revolution)
2) Explicitly show how you verified your kinematic results.
C
AD = 13 in
AB = 4 in
BC = 15 in
CD = 20 in
3
4
B
θ2
2
A
1
D
1
θ4
ME 481 - H08
Name ________________________
ME 481 - H08
Name ________________________
Results directly from SW
Angular Displacement1 (deg)
149
140
132
123
114
0.00
1.00
2.00
3.00
4.00 5.00 6.00
Time (sec)
7.00
8.00
9.00
10.00
0.00
1.00
2.00
3.00
4.00 5.00 6.00
Time (sec)
7.00
8.00
9.00
10.00
3.00
4.00 5.00 6.00
Time (sec)
7.00
8.00
9.00
10.00
Angular Velocity1 (deg/sec)
44
12
-20
-52
Angular Acceleration1 (deg/sec**2)
-84
302
161
19
-122
-263
0.00
1.00
2.00
ME 481 - H08
Name ________________________
H08 four bar at 30 rpm
150
145
Theta 4 [deg]
140
135
130
SW
geometric
125
120
115
110
0
50
100
150
200
250
Theta 2 [deg]
300
350
400
H08 four bar at 30 rpm
1
SW
geometric
Theta 4 dot [rad/sec]
0.5
0
-0.5
-1
-1.5
0
50
100
150
200
250
Theta 2 [deg]
300
350
400
ME 481 - H08
Name ________________________
H08 four bar at 30 rpm
6
SW
geometric
Theta 4 dot dot [rad/sec/sec]
4
2
0
-2
-4
-6
0
50
100
150
200
250
Theta 2 [deg]
300
350
400