Task 7: Solving the LP formulated using the parameters estimated.
Recall that the LP formulated in task 1 was:
Objective function:
Constraints:
Demand for :
Demand for :
Demand for :
Demand for :
Demand for :
Machining time constraint:
Assembly time constraint:
Finishing time constraint:
All decision variables are non-negative.
We shall use the following parameter estimates (obtained in tasks 2-6):
P1
P2
P3
P4
P5
demand (number of units required) for product .
10000
12000
9000
15000
16000
cost for producing each unit of in a regular run.
$50
$70
$38
$98
$110
cost for producing each unit of in a special run.
$80
$90
$66
$136
$140
machining time (minutes) per unit of product .
2
2
4
4
4
assembly time (minutes) per unit of product .
4
2
2
4
2
finishing time (minutes) per unit of product .
1
1
1
1
2
Use these parameter estimates to solve the above LP using any solver (such as Excel Solvers Simplex method) to obtain the optimal production plan. You may modify the LP module I have provided (under Course Content) to solve the LP. Report your results as follows:
Minimum cost attainable:
Number of units produced
P1
P2
P3
P4
P5
Regular Run
Special Run
Resources in regular run
Minutes used
Minutes available
MACHINE TIME
18000
ASSEMBLY TIME
24000
FINISH TIME
24000
Task 8. Sensitivity Analysis:
(a) By how much does the total cost change as the demand for each product type changes by 1 unit?
Increase (or decrease) the demand for the products (one product at a time) by 1 unit and see how it affects your optimal objective function value.Optimal LP Solution and Quality Control








Recent Comments