Study-unit MANAGEMENT OF PRODUCTION SYSTEMS
Course name | Mechanical engineering |
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Study-unit Code | 70098706 |
Curriculum | Gestionale |
Lecturer | Lorenzo Tiacci |
Lecturers |
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Hours |
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CFU | 8 |
Course Regulation | Coorte 2021 |
Supplied | 2023/24 |
Supplied other course regulation | |
Learning activities | Caratterizzante |
Area | Ingegneria gestionale |
Sector | ING-IND/17 |
Type of study-unit | Obbligatorio (Required) |
Type of learning activities | Attività formativa monodisciplinare |
Language of instruction | Italian |
Contents | Introduction to production systems Basic concepts for the management of production systems Managing items with stationary and independent demand Managing items with dependent demand Just-in-time, Lean Production and Six Sigma. |
Reference texts | ADOPTED: Tiacci, L., "Gestione delle Scorte - Modelli matematici e loro applicazione - 2A EDIZIONE", Lulu, 2021. (acquistabile al link: http://www.lulu.com/spotlight/LorenzoTiacci) Sianesi, A., "La Gestione del Sistema di Produzione", ETAS, 2011. SUGGESTED: Nahmias, S., "Production and Operations Analysis" - Sixth Ed. - McGrawHill, 2013 Silver, E.A., Pyke, D.F., Thoms, D.J., "Inventory and Production Management in Supply Chains" - Fourth Ed. - CRC Press 2017. Silver, E.A., Pyke, D.F., Peterson, R., "Inventory Management and Production Planning and Scheduling" - Third Ed. - WILEY 1998. Schiraldi, M., "La gestione delle scorte", Esselibri, 2007. Chopra, S. , Meindl, P., "Supply Chain Management", Pearson, 2007. |
Educational objectives | The course objective is to provide basic knowledge for the management of a production system as a whole, in order to optimize its performance in terms of cost reduction and service level fulfillment. The main knowledge gained will be: definitions and classifications of production processes and production systems knowledge related to productivity and efficiency measures theoretical knowledge on materials management, such as inventory control policies for items with independent demand theoretical knowledge related to material with dependent demand, such as heuristic for lot sizing, forecasting, and basic concepts of Material Requirement Planning Basic knowledge of Just in Time and Lean Production The main skills are: application of forecasting techniques on historical data for the calculation of future requirements Ability of develop the Sales and Operations Plan (S & OP) Ability to develop Master Production Schedule (MPS) Ability to optimize order quantities and reorder points Ability to optimize the time interval between orders and the order-up-to levels |
Prerequisites | In order to understand and to apply most of the techniques described in the course it is essential the knowledge of the following topics: - Integral, indefinite integrals, multi-variable functions, maximum and minimum bounded - Probability density functions, basic concepts of statistics. It is also important to have succesfully taken an exam about Facilities Planning. |
Teaching methods | The course is organized as follows: - Theoretical lessons on all topics of the program - Classroom exercises consisiting in solving practical problems The exercises are held during class time, and immediately follow the theoretical lesson to which they refer |
Other information | Attendance is not comulsory but strongly adviced. |
Learning verification modality | The exam consists of a written exam and an oral exam. The written exam consists in an exercise in which the student has to solve a problem related to subject as demand forecasting, inventory control, MRP. The exercise aim is to determine the ability to correctly apply the theoretical knowledge, the understanding of the issues proposed, and the concentration ability needed to perform correctly the calculation needed to solve the problem. The test duration is approximately 1h 30m The oral exam consists of 3 questions designed to ascertain the level of knowledge and understanding of the issues on theoretical and methodological aspects of the program. The duration of the test is about 30 min. |
Extended program | Introduction to production systems Definition of production system and production process The classification of manufacturing processes and production systems Classification of "products" Classified according to the management methods Push and pull approaches (par. 3.4) Classification by technological processes Classification by work organization Classification by lay out The hybrid classifications Basic concepts for the management of production systems Introduction Performance measurement and operational conditions The measurement of operating conditions The operating states of a resource The availability of a productive resource the production capacity The measure of internal performances The OEE measure Costs for decisions Production costs Inventory carrying costs Setup costs Stock-out costs of Managing items with stationary and independent demand General concepts regarding stocks Classification of stocks based on the state of transformation Classification of stocks based on their function Materials management The objectives of materials management The criteria for materials management Managing items with stationary demands assumptions The objectives, costs, decisions and management models The EOQ-ROP model Order quantity with deterministic and constant demand The economic order quantity (EOQ) Quantiities discounts The economic production quantity (EPQ) Deterministic lead times Items with probabilistic demand Policy (s, Q) (order point, order quantity) - Continuous Review Choice of the safety factor for the determination of safety stocks Minimization of the total costs as a function of a fixed cost per Stock-out event. Minimization of the total costs as a function of a cost per stock-out unit. Decision rule for a given probability not to go to Stock-out during a supply cycle (cycle service level) Decision rule for a given percentage of demand fulfilled directly from the shelf (fill rate) Decision rule for a given average time between stock out occasions (TBS = Time Between Stockout Occasion) The model with fixed reorder interval Policy (R, S) (review period, order up to level) - Periodic Review Variability of lead time Aggregation in the Multi-Item case Allocation of a total value of safety stocks for minimizing the total expected number of stock-out incidents in a year Allocation of a total amount of safety stock for the minimization of the expected total value of stock-outs in a year measuring the efficiency Managing items with dependent demand The general framework From independent to dependent demand items General concepts related to dependent demand items Demand forecasting static method self-adaptive methods: moving averages, exponential smoothing, Holt and Winters models error measures aggregate sales planning and capacity management Materials Requirements Planning (MRP) Just-in-time and Lean Production Introduction to quality management The Toyota production System Techniques to accomplish the TPS The Six Sigma |