Question 2. (125 marks) (a) An overhead trolley conveyor is configured as a continuous closed loop. The delivery loop has a length of 120 m and the return loop = 80 m. All parts loaded at the load station are unloaded at the unload station. Each hook on the conveyor can hold one part and the hooks are separated by 4 m. Conveyor speed = 1.25 m/s. Determine: (i) maximum number of parts in the conveyor system, (ii) parts flow rate; and (iii) maximum loading and unloading times that are compatible with the operation of the conveyor system? (b) Compute the cycle time and production rate for a single-machine robotic cell for an 8- hour shift if the system availability is 90%. Also determine the percent utilization of machine and robot. On average, the machine takes 30 s to process part. The other robot operation times as follows: Robot picks up a part from the conveyor 3.0 s Robot moves the part to the machine 1.3 s Robot loads the part onto the machine 1.0 s Robot unloads the part to the machine 0.7 s
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