d e d 1 Initially, assume that Phil wants to minimize his in ventory requirements. Assume that each order will be only for what is required for a single period. Using the following forms, calculate the net requirements and planned order releases for the gear boxes and input shafts. Assume that lot sizing is done using lot-for-lot (LAL). 2 Phil would like to consider the costs that his accoun- tants are currently using for inventory carrying and setup for the gear boxes and input shafts. These costs are as follows: - e d ar PART COST I Gear Box y Setup = $90/order Inventory carrying cost = $2/unit/week Setup = $45/order Inventory carrying cost = $1/unit/week Input Shaft e Model 1000 de vu We 2 3 D 5 6 7 * 9 10 II 12 Dem 15 5 7 10 15 20 10 8 2 16 YA Model 1000 product tracture Engine sembly I Crankcase Gearbox Lead time 2 weeks Usod: I per engine Input shalt Lead time - 3 weeks Used: 2 per gearbox MATERIAL REQUIREMENTS PLANNING chapter 27 585 Given the cost structure. evaluate the cost of the schedule from question 1. Assume inventory is val- ucd at the end of each weck. 3. Find a better schedule by reducing the number of orders and carrying some inventory. What are the savings with this new schedule? Given the cost structure, evaluate the cost of the schedule from question 1. Assume inventory is val- ued at the end of each week. 3 Find a better schedule by reducing the number o orders and carrying some inventory. What are the savings with this new schedule? Engine assembly master schedule Weck 2 3 4 5 6 7 8 9 10 Quantity 11 12 Gear box requirements 2 3 4 5 6 7 8 9 10 11 12 Week Gross requirements Scheduled receipts Projected available balance Net requirements Planned order release Input shaft requirements 1 2 3 4 5 6 7 8 9 2 Weck Gross requirements Scheduled receipts Projected available balance Net requirements Planned order release