Improving production planning through finite-capacity MRP

Materials Requirement Planning (MRP) technique is widely employed by most manufacturing companies, even though field applications point out some weaknesses, including ignored production capacity constraints and fixed lead-times. These weaknesses often lead to infeasible production schedules, which trigger fluctuating workloads over time, significant adjustment effort and eventually unpredictably long lead times. This paper introduces a capacity-oriented MRP procedure that combines the traditional MRP procedure with an approach based on linear programming: in this way, requirement of lead times pre-determined a priori outside the MRP procedure is overcome. The new procedure is then applied to a real-life company and results highlight that feasible plans of orders are generated without requiring lead-times as input and without relevant computational burden.

[1]  J. Miltenburg,et al.  Computational complexity of algorithms for MRP and JIT production planning problems in enterprise resource planning systems , 2001 .

[2]  Thom J. Hodgson,et al.  A simulation-based finite capacity scheduling system , 1997, WSC '97.

[3]  Richard F. Hartl,et al.  Simulation-based optimization methods for setting production planning parameters , 2014 .

[4]  Michael P. Wellman,et al.  Planning and Control , 1991 .

[5]  Rakesh Nagi,et al.  Cycle time reduction by improved MRP-based production planning , 2000 .

[6]  Oliver Wight.  The Executive's Guide to Successful MRP II , 1982 .

[7]  P. C. Pandey,et al.  A finite capacity material requirements planning system , 2000 .

[8]  Tommaso Rossi,et al.  A simulation-based finite capacity MRP procedure not depending on lead time estimation , 2011 .

[9]  Anders Segerstedt.  Formulas of MRP , 1996 .

[10]  Fabrizio Dallari,et al.  Applying an integrated logistics network design and optimisation model: the Pirelli Tyre case , 2012 .

[11]  Teeradej Wuttipornpun,et al.  Development of finite capacity material requirement planning system for assembly operations , 2004 .

[12]  S. Reiter.  A System for Managing Job-Shop Production , 1966 .

[13]  Fabrizio Dallari,et al.  An integrated model for designing and optimising an international logistics network , 2012 .

[14]  R. John Milne,et al.  Optimizing planned lead times for enhancing performance of MRP systems , 2015 .

[15]  Li Sun,et al.  Comparing dynamic risk-based scheduling methods with MRP via simulation , 2012 .

[16]  Reha Uzsoy,et al.  A comparison of multiple linear regression approaches for fitting clearing functions to empirical data , 2014 .

[17]  George Ioannou,et al.  Lead time estimation in MRP/ERP for make-to-order manufacturing systems , 2012 .

[18]  Patrik Jonsson,et al.  A longitudinal study of material planning applications in manufacturing companies , 2006 .

[19]  John J. Kanet,et al.  Integrating production planning and control: towards a simple model for Capacitated ERP , 2010 .

[20]  Jan Olhager,et al.  The effect of MRP lot sizing on actual cumulative lead times in multi-level systems , 1998 .

[21]  Richard B. Chase,et al.  Production and operations management : manufacturing and services , 1995 .

[22]  Reha Uzsoy,et al.  Zero-order production planning models with stochastic demand and workload-dependent lead times , 2015 .

[23]  Herbert Jodlbauer,et al.  Material and capacity requirements planning with dynamic lead times , 2012 .

[24]  Alexandre Dolgui,et al.  A State of the Art on Supply Planning and Inventory Control under Lead Time Uncertainty , 2013 .

[25]  Martin Taal,et al.  Integrating MRP and finite capacity planning , 1997 .

[26]  Jinwoo Park,et al.  A high performance finite capacitated MRP process using a computational grid , 2009 .

[27]  S. T. Enns.  MRP performance effects due to lot size and planned lead time settings , 2001 .

[28]  Tommaso Rossi,et al.  Evaluating supply chain integration: a case study using fuzzy logic , 2008 .

[29]  N. Raghavan,et al.  Finite-capacity production planning algorithms for a semiconductor wafer fabrication facility , 2001 .

[30]  R. R. P. Jackson,et al.  Production Planning and Control , 1965 .

[31]  Cemalettin Öztürk,et al.  A MIP based heuristic for capacitated MRP systems , 2012, Computers & industrial engineering.

[32]  Ping Ji,et al.  A mixed integer programming model for advanced planning and scheduling (APS) , 2007, Eur. J. Oper. Res..

[33]  Arslan M. Ornek,et al.  Capacitated lot sizing with alternative routings and overtime decisions , 2006 .

[34]  J. Little.  A Proof for the Queuing Formula: L = λW , 1961 .

[35]  Raul Poler Escoto,et al.  MRP with flexible constraints: A fuzzy mathematical programming approach , 2006, Fuzzy Sets Syst..

[36]  S. K. Das,et al.  Finite capacity scheduling method for MRP with lot size restrictions , 2001 .

[37]  Kenneth Fordyce,et al.  Optimized material requirements planning for semiconductor manufacturing , 2012, J. Oper. Res. Soc..

[38]  John O. McClain,et al.  Mathematical Programming Approaches to Capacity-Constrained MRP Systems: Review, Formulation and Problem Reduction , 1983 .