Assembly Line Design Problems (Solutions)

May 15th, 2015
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The following tables give the tasks, task times, and predecessors that are to be performed on an assembly line. Consider the scenarios and answer the corresponding questions for each. 1. Scenario One:

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Assembly Line DesignBADM 615Assembly Line DesignProblems (Solutions)Assembly Line Design Problems (Solutions)The following tables give the tasks, task times, and predecessors that are to be performed on an assembly line. Consider the scenarios and answer the corresponding questions for each. 1. Scenario One:TaskABCDEFGHSeconds20720221510168Preceding TasksABBCDE, FGThe workday is seven hours long; and the demand for completed products is 750 per day. a. Find the takt time (workstation cycle time).b. What is the theoretical minimum number of workstations?c. Draw the precedence diagram.CE2015ABGH207168DF22101BADM 615Assembly Line DesignProblems (Solutions)d. Balance the line.StationCandidate(s)ChoiceAWork-ElementTime (seconds)20CumulativeTime (seconds)20Idle Time(seconds)13.61A, BBB7276.6C, D, E, FD222211.6C, E, FF10321.63C, EC202013.64EE151518.6GG16312.6HH8825.625e. What is the efficiency of the line balance?2. Scenario Two:TaskABCDEFGHIMinutes112131121Preceding TasksABBC, DAFGE, Ha. Draw the precedence diagram.C2BE13DA1I11FGH1122BADM 615Assembly Line DesignProblems (Solutions)b. Given a takt time of four minutes, develop two alternative layouts for balancing. Layout #1:StationCandidate(s)ChoiceAWork-E

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