Please guide for below mention problem. I'll very helpful for your co-operation and refer to my friend for this usefull site.
(1) The demand and capacities for production of company is given below. Demand for January, February and March are 900, 300 and 700 respectively. The production capacities for each of the month are given below.
January February March
Regular time 600 300 200
Over time 300 300 300
Sub contracted 500 500 500
The production cost per unit during regular time is Rs 60, during over time is Rs 70, and the sub contracted cost is Rs 72. The cost of carrying inventory is Rs 5 per unit per month. The cost of unused regular time capacity is Rs 15. Find the optimum production plan using transportation model.
2) A company is setting up an assembly line to produce 192 units per eight-hour shift. The following table identifies the work elements, items, and immediate predecessors.
Work element
Time (seconds)
Immediate predecessor(s)
A
40
None
B
80
A
C
30
D, E, F
D
25
B
E
20
B
F
15
B
G
120
A
H
145
G
I
130
H
J
115
C, I
Total
720
Questions:
a) What is the desired cycle time?
b) What is the theoretical minimum number of work stations?
c) Use the largest work element time rule to work out a solution.
d) What are the idle time, efficiency and balance delay for the solution?
Please guide for below mention problem. I'll very helpful for your co-operation and refer to my friend for this usefull site.
(1) The demand and capacities for production of company is given below. Demand for January, February and March are 900, 300 and 700 respectively. The production capacities for each of the month are given below.
January February March
Regular time 600 300 200
Over time 300 300 300
Sub contracted 500 500 500
The production cost per unit during regular time is Rs 60, during over time is Rs 70, and the sub contracted cost is Rs 72. The cost of carrying inventory is Rs 5 per unit per month. The cost of unused regular time capacity is Rs 15. Find the optimum production plan using transportation model.
2) A company is setting up an assembly line to produce 192 units per eight-hour shift. The following table identifies the work elements, items, and immediate predecessors.
|
Work element |
Time (seconds) |
Immediate predecessor(s) |
|
A |
40 |
None |
|
B |
80 |
A |
|
C |
30 |
D, E, F |
|
D |
25 |
B |
|
E |
20 |
B |
|
F |
15 |
B |
|
G |
120 |
A |
|
H |
145 |
G |
|
I |
130 |
H |
|
J |
115 |
C, I |
|
Total |
720 |
|
Questions:
a) What is the desired cycle time?
b) What is the theoretical minimum number of work stations?
c) Use the largest work element time rule to work out a solution.
d) What are the idle time, efficiency and balance delay for the solution?
