Homework: Chapter 14 homework Score: 0 af 1 pt HW Score: 30%, 3 ot 10 pt Questio
ID: 409839 • Letter: H
Question
Homework: Chapter 14 homework Score: 0 af 1 pt HW Score: 30%, 3 ot 10 pt Question Help Problem 14.9 X F nally ach mil oro equires 2 nits vand 2 rits t ne n man taclues all it s i The demand tor subassemo y S s 100 units r week 7 xt un o requ res 2 unts of T and i un oru Each unt tit req es 1 ur of V 1 n ow and 2 tons to riake S. 1 wees to make 1,2 weeks to make U. 2 wooks to make V. 3 wseks in makc W, 1 weex tu ma vieks ta mahc Y and 1 wrck lo mak7 es s Click the icon to view the prodluc:l siru ture and the timme-phased product structute Click the iron lovew the on hand inventory Suppose that in addtion to 100 unit: of S, there is also a demand for 30 units af U, which is à component er s The- 30 unts of U are needed tor mainterance purairses. These units are rerded in week 6 llodify the net material revzuiremiernis plan to reflect thes change Consiruct a new mel materisl requirements plan fonter youw responses s whole nurs Lead Tima More info 7(weeks hand 20 On-Hand tem Inventory RO 40 80 20 er recept 063 re The product structuro The trnephased prodiux:i siructunc Nat ron Cicten seceipt Tlme In weeksExplanation / Answer
STEP 1
We need 100 S
On hand inventory= 20
So, net requirement =gross requirements- on hand inventory=100-20=80
Planned order receipt=80
Gross requirements are on 7th week. Lead time = 2 weeks
Planned order release time = week at which we need the gross requirements amount – lead time= 7-2 = 5th week
Planned order release amount= Planned order receipt=80
Planned order release is at the start of 5th week, production is started immediately and we get planned receipts by 7th week start.
STEP 2
To produce 80 units of S we need 80 units of U and 160 units of T (2 units of T are required for 1 unit of S)
We need 80 units of U as gross requirements in 5th week start to initiate production.
Also we need 30 units of U in 6th week
For 5th week,
On hand inventory= 40
So, net requirement =gross requirements- on hand inventory=80-40=40
Planned order receipt=40
Planned order release amount= Planned order receipt=40
Gross requirements are on 5th week. Lead time = 2 weeks
Planned order release time = week at which we need the gross requirements amount – lead time= 5-2 = 3rd week
For 6th week,
On hand inventory= 0
So, net requirement =gross requirements- on hand inventory=30-0=30
Planned order receipt=30
Planned order release amount= Planned order receipt=30
Gross requirements are on 6th week. Lead time = 2 weeks
Planned order release time = week at which we need the gross requirements amount – lead time= 5-2 = 3rd week
Similarly we continue for other units T,V,W.,X,Y,&Z
S
lead time-2 weeks
1
2
3
4
5
6
7
8
Gross requirements
100
Scheduled receipts
projected on hand
20
20
20
20
20
20
20
net requirements
80
planned order receipt
80
planned order release
80
T
lead time-1 weeks
1
2
3
4
5
6
7
8
Gross requirements
160
Scheduled receipts
projected on hand
20
20
20
20
20
net requirements
140
planned order receipt
140
planned order release
140
U
lead time-2 weeks
1
2
3
4
5
6
7
8
Gross requirements
80
30
Scheduled receipts
projected on hand
40
40
40
40
40
net requirements
40
30
planned order receipt
40
30
planned order release
40
30
V
lead time-2 weeks
1
2
3
4
5
6
7
8
Gross requirements
140
Scheduled receipts
projected on hand
20
20
20
20
net requirements
120
planned order receipt
120
planned order release
120
W
lead time-3 weeks
1
2
3
4
5
6
7
8
Gross requirements
140
Scheduled receipts
projected on hand
25
25
25
25
net requirements
115
planned order receipt
115
planned order release
115
X
lead time-1 weeks
1
2
3
4
5
6
7
8
Gross requirements
280
Scheduled receipts
projected on hand
25
25
25
25
net requirements
255
planned order receipt
255
planned order release
255
Y
lead time-2 weeks
1
2
3
4
5
6
7
8
Gross requirements
80
60
Scheduled receipts
projected on hand
80
80
80
net requirements
0
60
planned order receipt
60
planned order release
60
Z
lead time-1 weeks
1
2
3
4
5
6
7
8
Gross requirements
80
60
Scheduled receipts
projected on hand
40
40
40
net requirements
40
60
planned order receipt
40
60
planned order release
40
60
S
lead time-2 weeks
1
2
3
4
5
6
7
8
Gross requirements
100
Scheduled receipts
projected on hand
20
20
20
20
20
20
20
net requirements
80
planned order receipt
80
planned order release
80
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