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IE383_Assignment11_Sol

IE383_Assignment11_Sol - b Draw your balanced line with...

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A B C D E G F H I J K Station 1 Task: A,C,B Time: 19 mins Station 2 Task: D,G,F Time: 19 mins Station 3 Task: E,H,J Time: 18 mins Station 4 Task: I,K Time: 5 mins IE 383 Assignment 11 solution The table below indicates the steps, precedence and processing time to assemble VV26. As an Industrial Engineer, you are required to design a line that produces 125 VV26 in a 40 hours shift. Using the given information and the method we learned in class determine the following: a) Draw the precedence diagram (use MS Power Point or Visio, otherwise 10 points will be deducted). b) Draw your balanced line with tasks and their processing times. c) The line’s cycle time. d) The corresponding lead time/flow time (time for producing one finish product from scratch). e) The line’s balance delay. Work element Precedence Time (min) A - 8 B A 5 C - 6 D B,C 10 E D 2 F - 4 G - 5 H F,E,G 7 I H 2 J H 9 K I,J 3 a) Draw the precedence diagram (use MS Power Point or Visio).

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Unformatted text preview: b) Draw your balanced line with processing time and task. Work element RPW Time (min) Precedence A 46 8-C 39 6-B 38 5 A D 33 10 B,C G 26 5-F 25 4-E 23 2 D H 21 7 F,E,G J 12 9 H I 5 2 H K 3 3 I,J Desired cycle time = 40*60/ 125= 19.2 min. Then assign work elements to stations in RPW order and avoid precedence constraints voilations and also keep processiong time of each station within cycle time. c) The lines cycle time. Actual cycle time = max(19,19,18,5) = 19 min d) The corresponding lead time/flow time. Flow time = 19 + 19 + 18 + 5 = 61 mins e) The lines balance delay. Balance delay = *-number of stations actual cycle time sum of * = *-processing timenumber of stations actual cycle time 4 19 * = . % 614 19 19 73...
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IE383_Assignment11_Sol - b Draw your balanced line with...

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