Question

Suppose a 20-station automatic assembly line with no storage or slack between stations is being planned for a major automation thrust in the manufacturing plant where you are employed as the automation engineer. A cycle time objective has been set at 10 seconds in order to meet production quotas of 2000 units per eight-hour shift.

a) Assuming no station jamming at all, what is the ideal production rate of this line? Can the production quota of 2000 units per eight-hour shift be met? What is the throughput time?

b) Assuming ideal component quality and considering station malfunction. The station malfunction rate will be fifty out of 10,000 cycles. The repair time for station malfunction is 12 minutes. What is the production rate? Can the production quota of 2000 units per eight-hour shift be met? What is the percent downtime? What is the efficiency of this line? What is the throughput time?

Answer 1

no. of (station a。 stime auaikbuhour/shift riguered prvelaetion 200o umit /shif.t a) asuminy no station jamming at al tim availa ble for prcliesto tine for faredueiog ayg w eycte chime) 0x3600 lo ideal prduuchio 28 umit bate Throughput time total amount of work done a umit time. un gx3600 2ooo time

2 b) No of tailure in (oooo cycl 5 in ieldに-So z lo fasidiez ニチ200 sec Readluution cueution time 72oo sec = 2し600 sec 2 Ii) Downtime 120o Aec /. Down time Xloo me avdy total time 8x3600 リ]