The design target is the A-frame LARS shown below figure with the dimension as (unit in mm)

Dynamic specification

-Max load of the system is 2000 kg, assuming to concentrate at point A

- A-frame weight is 1300 kg, and the center of mass is at G (midpoint of OA)

- Assume that the A-frame moves at the steady angular velocity of 3 deg/sec, angular acceleration is small and can be negligible.

Given the information. Calculate:

- Max and min cylinder length (the cylinder length is equal to the length between B and C)

- Cylinder speed at critical positions (Fig. a and Fig. b)

- Cylinder force and joint force at critical position (pose Fig. a)
 

A 1800.00 1000.00 B 4000.00 G 1000.00 a. Fully-retract position 1000.00 G 1600.00 1000.00 4000.00 b. Fully-extend position B