Lab 4 Assembly Line Balancing - School of Informatics and Engineering Manufacturing Quality Lab 4 Assembly Line Balancing Part 1 The following assembly

# Lab 4 Assembly Line Balancing - School of Informatics and...

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Manfacturing Systems Lab3 - Page 1 of 3 Assembly Line Balancing Part 1: The following assembly tasks (with performance time and task precedence) are to be configured into a balanced assembly line layout for a bottling plant. There are 5 hours per day, 5 days a week scheduled production time for this particular product, also there is an estimated demand of 3,000 bottles per week. Given this information for this product complete a line balancing calculation on the tasks based on the Ranked positional weight decision rule. What is the efficiency of the process? TASK PERFORMANCE TIME (minutes) TASK PRECEDENCE A 0.1 - B 0.1 A C 0.1 B D 0.2 B E 0.1 B F 0.2 C, D, E G 0.1 A H 0.1 G I 0.2 H J 0.1 I K 0.2 F L 0.2 J, K M 0.1 L Solution Outline: Total Performance Time = 1.8 minutes Cycle Time (in minutes) = 5 hours x 5 days x 60 minutes/hour 3,000 bottles = 0.5 minutes / bottle Min. number of workstations = 1.8(total task time) / 0.5 (cycle time) = 3.6 or 4 stations RPW task E = 0.1(E) + 0.2(F) + 0.2(K) +0.2(L) +0.1(M) = 0.8 RPW task D= 0.2(D) + 0.2(F) + 0.2(K) +0.2(L) +0.1(M) = 0.9 => choose task D RPW task C = 0.1(C) + 0.2(F) + 0.2(K) +0.2(L) +0.1(M) = 0.8 (RPW ORDER = A B D C E G F H I K J L M) School of Informatics and Engineering Manufacturing & Quality – Lab 4