《流水生產(chǎn)組織》ppt課件-文庫(kù)吧
2025-04-16 06:49 本頁(yè)面
【正文】 ? Answer: T h e o r e t i c a l M i n . N u m b e r o f Wo r k s t a t i o n s , NN = S u m o f t a s k t i m e s ( T )C y c l e t i m e ( C )ttN = 1 1 . 3 5 m i n s / u n i t4 . 2 m i n s / u n i t = 2 . 7 0 2 , o r 3tExample of Line Balancing: Rules To Follow for Loading Workstations ? Primary: Assign tasks in order of the largest number of following tasks. ? Secondary (tiebreaking): Assign tasks in order of the longest operating time A C B D E F G H 2 1 .5 1 1 Station 1 Station 2 Station 3 Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A C B D E F G H 2 1 .5 1 1 Station 1 Station 2 Station 3 A (=) Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A C B D E F G H 2 1 .5 1 1 A (=) B (=) Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 Station 1 Station 2 Station 3 A C B D E F G H 2 1 .5 1 1 A (=) B (=) G (= .2) Idle= .2 Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 Station 1 Station 2 Station 3 A C B D E F G H 2 1 .5 1 1 C ()=.95 Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A (=) B (=) G (= .2) Idle= .2 Station 1 Station 2 Station 3 C ()=.95 Idle = .95 A C B D E F G H 2 1 .5 1 1 Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A (=) B (=) G (= .2) Idle= .2 Station 1 Station 2 Station 3 C ()=.95 Idle = .95 A C B D E F G H 2 1 .5 1 1 D ()=3 Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A (=) B (=) G (= .2) Idle= .2 Station 1 Station 2 Station 3 A C B D E F G H 2 1 .5 1 1 C ()=.95 Idle = .95 D ()=3 E ()= Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A (=) B (=) G (= .2) Idle= .2 Station 1 Station 2 Station 3 A C B D E F G H 2 1 .5 1 1 C ()=.95 Idle = .95 D ()=3 E ()= F ()= Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A (=) B (=) G (= .2) Idle= .2 Station 1 Station 2 Station 3 Which station is the bottleneck? What is the effective cycle time? A C B D E F G H 2 1 .5 1 1 C ()=.95 Idle = .95 D ()=3 E ()= F ()= H ()=.1 Idle = .1 Task Followers Time (Mins) A 6 2 C 4 D 3 B 2 1 E 2 F 1 1 G 1 1 H 0 A (=) B (=) G (= .2) Idle= .2 Station 1 Station 2 Station 3 Example of Line Balancing: Determine the Efficiency of the Assembly Line E f f i c i e n c y = S u m o f t a s k t i m e s ( T )A c t u a l n u m b e r o f w o r k s t a t i o n s ( N a ) x C y c l e t i m e ( C )E f f i c i e n c y = 1 1 . 3 5 m i n s / u n i t( 3 ) ( 4 . 2 m i n s / u n i t ) =. 901? 組織工序同期化的方法 ? 例：某產(chǎn)品的生產(chǎn)節(jié)拍為 10分鐘，各工步的時(shí)間定額和工步順序如下圖示： 1 2
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