1. Report #1: Product Description 7
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The statistics of this assembly operation is as follow. screwd7 Taylor II Element report Date: 29-11-1999 Time: 19:55 ======================================================================== Cluster Elnr Elname Produced AvgQueue Util Down -------- ---- -------- -------- -------- ------ ------ 0 1 Inou_1 320 1.00 53.33 10.02 0 2 Inou_2 320 1.00 29.57 9.82 0 3 Buff_3 307 8.77 0 4 Buff_4 313 10.84 0 5 Mach_5 102 0.86 76.62 9.11 0 6 Mach_6 102 0.84 77.94 6.48 0 7 Mach_7 100 0.85 75.54 9.37 0 8 Mach_8 312 0.98 75.12 9.06 0 9 Buff_9 302 1.55 0 10 Buff_10 9.37 0 11 Mach_11 301 0.85 74.94 9.33 0 12 Buff_12 305 0.21 0 13 Mach_13 304 0.82 72.85 9.01 0 14 Buff_14 5 0.08 0 15 Mach_15 4 0.28 20.00 10.17 In general, the utilization of the stations (around 75%) are considered appropriate for the assembly workers. The Input stations (Inou_1 and Inou_2) and the repair station (Mach_15) total utilization is about 100% (53.33% + 29.57% + 20%). These three tasks are performed by 2 people instead of 3 people. That is, Inou_2 and repair are done by the same person. A low utilization value of 50% is considered appropriate for these tasks as these people need to walk around in between jobs to transfer the raw materials. 1 For all these manual operations, failure is the scheduled (allowed) break at about every 2 hours. 2 Repair means the length of allowable break for about 15 minutes. Log-normal distribution is assumed because people tend to take a longer than a shorter break than allowed. 3 For all these manual operations, failure is the scheduled (allowed) break at every 2 hours. 4 Repair means the length of allowable break for about 15 minutes. Log-normal distribution is assumed because people tend to take a longer than a shorter break than allowed. _________________________________________________________________________________________________________ Originators: Sudjianto/Clark/Oak/Shukla/Tanabe Page of Date Initiated: September 29, 1999 fInal_report.doc Date Revised: December 5, 1999 |
