Model Penentuan Ukuran Batch Produksi dan Bufferstock untuk Sistem Produksi Mengalami Penurunan Kinerja dengan Mempertimbangkan Perubahan Order Awal

Ivan D Wangsa    (Departemen Logistik, PT. Galangan Kalimas, Balikpapan - Indonesia)

 ) Corresponding Author
Copyright (c) 2016 Ivan D Wangsa
This study develops a model that involves information the preliminary order. At first, the manufacturer provides the preliminary order for the coming week (five days) varies from day to day and is received on Friday. Change in the preliminary order for a given day is announced one day before and this is viewed as it occurs randomly. Moreover, production systems experience performance degradation (deterioration). Status of the production process shifts from in control to out of control that is identified by the last inspection. Inspection is done by sampling. At the time of the status of out of control the probability of producing non-conforming system component that is charged to the restoration cost and warranty costs.This paper is looking for a solution for determining the production batch size and the buffer stock to reduce total cost. The decision variables are production run period (T) and buffer factor (m). Having obtained the variables T and m, then the variable production batch size (QT) and the buffer stock (BT) can be determined sequentially. Heuristic methods used are Silver-Meal (SM) and Least Unit Cost (LUC) to obtain a solution for each model. Numerical examples are given to demonstrate the performance of the models. From the numerical results, it appears that LUC method is better than SM method.
Perubahan order awal; ukuran batch produksi; buffer stock; metoda heuristik (SM dan LUC); inspeksi sampling
  Click to Read the Full Text

[1] I. Djamaludin, D.N.P. Murthy dan R.J. Wilson. “Quality Control Through Lot Sizing for Item Sold with Warranty”, International Journal of Production Economic, Vol. 33, pp. 97–107.1994

[2] H. L. Lee dan S. Whang.“Information Sharing in a Supply Chain”, Research Paper No. 1549, Research Paper Series, Graduate School ofBusiness, Stanford University.1998

[3] E.L. Porteus.(1986).“Optimal Lot Sizing, Process Quality Improvement and Setup Reduction”, Operation Research, Jan-Feb, pp. 137–144.1998

[4] H. Prasetyo. Model Ukuran Lot Untuk Proses Produksi yang Mengalami Penurunan Kinerja dengan Pola Permintaan Berfluktuasi, Tesis Magister, Bidang Khusus Rekayasa Sistem Manufaktur, Program Studi Teknik dan Manajemen Industri, Institut Teknologi Bandung.2004

[5] I. N. Pujawan. “Schedule Nervousness in A Manufacturing System: A Case Study”, Production Planning & Control-Taylor & Francis, Vol. 15, No. 5, pp. 515–524.2004

[6] I. N. Pujawan.“The Effect of Lot Sizing Rules on Order Variability”, European Journal of Operational Research, No. 159, pp. 617–635.2004

[7] I. N. Pujawan.“Supply Chain Management”, Surabaya: Guna Widy.2005

[8] I. N. Pujawan dan E. A. Silver.. “Augmenting the Lot Sizing Order Quantity When Demand is Probabilistic”, European Journal of Operational Research, Vol. 188, pp. 705–722.2008

[9] M. J. Rosenblatt dan H. L. Lee. “Economic Production Cycle with Imperfect Production Process”, IIE Transaction, Maret, pp. 48–5.1986

[10] M. K. Salameh dan M. Y. Jaber. “Economic Production Quantity Model for Item with Imperfect Quality”, Int. Journal of Production Quantity, No. 64, pp. 59–64.2000

[11] D. Saraswati, A. R. Cakravastia, B. I. Iskandar, dan A. H. Halim. “Model Penentuan Ukuran Lot Produksi Dengan Pola Permintaan Berfluktuasi”, Jurnal Teknik Industri, Vol. 11, No. 2, pp. 122–133.2009

[12] E. A. Silver, D. F. Pyke, dan R. Peterson.Inventory Management and Production Planning and Schedulling 3rd ed., New York:John Willey & Sons.1998

[13] R. J. Tersine.Principles of Inventory and Materials Management, New York: North Holland.1994

[14] C. H. Wang dan Sheu. “The Effect of the Warranty Cost on the Imperfect EMQ Model with General Discrete Shift Distribution”, Production Planning and Control, Vol. 12, No. 6, pp. 621–628.2001

[15] I. D. Wangsa. “Penentuan Ukuran Batch dan Buffer Stock Dengan Mempertimbangkan Perubahan Order Awal”, Tesis Magister, Bidang Khusus Rekayasa Sistem Manufaktur, Program Studi Teknik dan Manajemen Industri, Institut Teknologi Bandung.2012

[16] I. D. Wangsa dan B. P. Iskandar.“Pengembangan Model Consignment Stock pada Sistem Rantai Pasok Dua Eselon dengan Permintaan Berfluktuasi dan Perubahan Order Awal”, Jurnal Teknik Industri, Vol. 15, No. 1, pp. 1–1.2013

[17] I. D. Wangsa dan B. P. Iskandar. “Model Penentuan Ukuran Batch dan Buffer Stock Dengan Mempertimbangkan Perubahan Order Awal”, Malikussaleh Industrial Engineering Journal, Vol. 3, No. 1, pp. 18–24.2014

[18] R. H. Yeh, W.T. Ho, dan S.T. Tseng. “Optimal Production Length for Product Sold with Warranty”, European Journal of Operational Research, No. 120, pp. 575–585.2000

StatisticsArticle Metrics

This article has been read : 1344 times
PDF file viewed/downloaded : 600 times

This article can be traced from

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.