A Case Study on the Analysis of Man/Multi-Machine System Using Simulation

시뮬레이션을 이용한 작업자/복수기계 가동분석에 대한 사례연구

  • 문덕희 (창원대학교 산업시스템공학과) ;
  • 송성 (창원대학교 산업시스템공학과) ;
  • 최미진 ((주)NewIT ERP사업부) ;
  • 정종윤 (창원대학교 산업시스템공학과)
  • Published : 2003.03.01

Abstract

This paper deals with a case study of workload analysis of an operator in an automatic line for machining the race of ball bearing. Eleven machines and three hoppers are installed in the line which is operated by an operator. The elements of operation are separated into machine controlled elements, operator controlled elements and machine/operator controlled elements. In order to analyze the system, time and motion studies are used for gathering input data for the simulation model. The first objective of this study is to evaluate whether the workload of operator is reasonable or not. The second objective is to increase throughput by reducing tact time and the last one is to increase frequencies of inspection by reducing interval. Thus we suggest some ideas for improvement, and as a result, the throughput is improved about 9%. In spite of the increasing of throughput, the allowance of operator is also increased about 4%.

Keywords

References

  1. Journal of the Royal Statistical Society B v.12 The Productivity of Several Machines under the Care of One Operator Ashcroft,H.
  2. The Journal of Industrial Engineering v.13 no.2 On the Cyclic Servicing of semiautomatic Machines Conway,R.W.;Maxwell,W.L.;Sampson,M.W.
  3. Performance Evaluation v.29 no.3 Machine Interference Problem with Warm Spares, Server Vaction and Exhaustiv Service Gupta,S.M.
  4. Operations Research v.15 no.2 Nonpreemptive Priorities in Machine Interference Hodgson,V.;Hebble,T.L.
  5. Simulation with Arena Kelton,W.D.;Sadowski,R.P.;Sadowski,d.A.
  6. Journal of the Royal Statistical Society B v.19 no.1 The Efficiency of N Machines Uni0directionally Patrolled by One Operator When Walking times and Repair Times are Constants Mack,C.;Murphy,T.;Webb,N.L.
  7. The Journal of Industrial Engineering v.9 no.1 The Assignment of workers in Servicing Automatic Machines Palm,D.C.
  8. Handbook of industrial engineering Salvendy,G.
  9. International Journal of production Research v.23 no.1 Review of Operator/machine Interference Models Stecke,K.E.;Aronson,J.E.
  10. Queueing Systems v.39 no.4 Queue Length Distribution in a FIFO Single-Server Queue with Multiple Arrival Streams Having Different Service Time Distribution Takine,T.
  11. 한국시뮬레이션학회논문지 v.9 no.1 시뮬레이션을 사용한 엔진생산라인의 설계개선 오필범;임석철;한혀상