2-3-10 - Click to edit Master subtitle style Facility...

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Unformatted text preview: Click to edit Master subtitle style Facility Layout BLOCPLAN • Relationship chart or From-to chart as input data • Can be used as a – construction type or – improvement type algorithm (may not be possible to capture the exact layout) • The layout cost can be determined by: – distance-based objective, or – adjacency-based objective • Continuous representation • Builds on SLP Stores Milling Turning Press Plate Assembly Warehouse – 12 6 9 1 4 – – – – – 7 2 – – 3 – – 4 – – – – – – 3 1 1 – 3 1 – – 4 3 1 – – – – – 7 – – – – – – – Stores Milling Turning Press Plate Assembly Warehouse 1. Directors conference room 2. President 3. Sales department 4. Personnel 5. Plant manager 6. Plant engineering office 7. Production supervisor 8. Controller office 9. Purchasing department I 1 O 5 U 6 O 5 A 4 I 4 U 6 I 4 I 1 U 6 I 4 O 5 A 4 O 5 O 5 U 3 O 5 O 5 O 5 O 5 E 4 O 2 U 6 O 5 O 5 O 5 U 3 U 6 E 4 O 4 U 3 I 4 I 4 U 3 O 5 U 6 1. Directors conference room 2. President 3. Sales department 4. Personnel 5. Plant manager 6. Plant engineering office 7. Production supervisor 8. Controller office 9. Purchasing department I 1 O 5 U 6 O 5 A 4 I 4 U 6 I 4 I 1 U 6 I 4 O 5 A 4 O 5 O 5 U 3 O 5 O 5 O 5 O 5 E 4 O 2 U 6 O 5 O 5 O 5 U 3 U 6 E 4 O 4 U 3 I 4 I 4 U 3 O 5 U 6 BLOCPLAN Three bands to which each of the departments are assigned 18 potential department addresses – up to one department per address Departments are rectangular in shape as all are in a “band” The building is also rectangular in shape A B D C E- L F H G I 3 bands E- R 200 300 1 3 2 4 5 6 7 8 9 BLOCPLAN Assign all the departments to the layout Calculate the width of the band by adding the area of the departments and dividing it by the building length Calculate the length of the individual departments by Building Dimensions Area 300 60,000 200 Department Area 1 8000 2 4000 3 8000 4 10000 5 2000 6 12000 7 6000 8 4000 9 6000 Total 60,000 Area Height Band 1 20000 66.67 1 8000 2 4000 3 8000 Band 2 24000 80.00 4 10000 5 2000 6 12000 Band 3 16000 53.33 7 6000 8 4000 9 6000 66.6 7 8 53.3 3 BLOCPLAN 1. Consider all the possible two way exchanges of the departments. 2. Choose the first exchange that gives an improvement (A-based or D- based). Checks exchanges in the following order: 1-2,1-3, …,1-9, 2-3, 2- 4,…,8-9. 3. Exchange dept. addresses and recalculate dimensions. 4. Repeat 1 - 3 until no further improvement. 5. Breaks Ties Randomly 1 3 2 4 5 6 7 8 9 BLOCPLAN BLOCPLAN implicitly assumes all cij’s are equal to 1.0 Input data given in the form of a relationship chart, BLOCPLAN converts it using a closeness rating of A=10, E=5, I=2, O=1, U=0, X= -10 Adjacency score is : l Not affected by U relationships l Adversely affected by X relationships – could be negative Counts corners as adjacent....
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This note was uploaded on 02/14/2010 for the course ISE 3214 taught by Professor Staff during the Spring '08 term at Virginia Tech.

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2-3-10 - Click to edit Master subtitle style Facility...

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