HW9+Solution

HW9+Solution - IOE 543 Winter 2010 Homework 9 Solution...

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Unformatted text preview: IOE 543 Winter 2010 Homework 9 Solution Problem 1 The sequence should be: Machine 1 7 4 5 Machine 2 2 1 3 Machine 3 8 9 6 Objective value=40.58 Please see the attached excel file for problem setup and analysis. Problem 2 Job 1 5 4 1 NA 2 8 3 5 NA 3 2 6 ‐4 NA 4 7 9 NA 2 5 11 7 NA ‐4 6 8 2 NA ‐6 J1,2={1, 2, 3} J2,1={4, 5, 6} At time 0, Job 2 is put on M1 and Job 4 is put on M2 At time 1/9=0.111, M2 is freed. Job 5 is put on M2 At time 1/8=0.125, M1 is freed. Job 1 is put on M1 At time 1/9+1/7=0.254, M2 is freed. Job 6 is put on M2 At time 1/8+1/5=0.325, M1 is freed. Job 3 is put on M1 M1: 2‐1‐3‐4‐5‐6 E(Cmax1)=1.184 M2: 4‐5‐6‐2‐1‐3 E(Cmax2)=1.504 So E(Cmax)=1.504 Problem 3 (a) Schedule Variance= Earned value – Planned Value = 18M – 23M = ‐5M Cost Variance = Earned Value – Actual Cost = 18M – 16M = 2M (b) The project is behind schedule (c) The project is under budget ...
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