Analysis of bullwhip effect on supply chain with Q model using Hadley-Within approach

10th International Conference Numerical Analysis in Engineering

数学;工业技术

Siregar, I.^1 ; Nasution, A.A.^2 ; Matondang, N.^1 ; Persada, M.R.^1 ; Syahputri, K.^1

Department of Industrial Engineering, Universitas Sumatera Utara, Medan, Indonesia^1

Department of Accounting, Universitas Sumatera Utara, Medan, Indonesia^2

关键词: Average percentage differences;    Bullwhip effects;    Information distortion;    Inventory control policies;    Product distribution system;    Tapioca starch;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/308/1/012006/pdf
DOI  :  10.1088/1757-899X/308/1/012006

学科分类：工业工程学

来源: IOP

【 摘 要 】

This research held on a tapioca flour industry company that uses cassava as raw material to produce tapioca starch product. Problems that occur in this company is inaccurate planning, consequently there is a shortage of variation between the number of requests with the total supply is met, so it is necessary to do research with the formulation of the problem that is how to analyze the Bullwhip Effect on the supply chain using Q model through Hadley-Within approach so as not to disturb the product distribution system at the company. Product distribution system at the company, obtained by the number of requests. The 2015 forecast result is lower than actual demand for distributors and manufactures in 2016 with average percentage difference for Supermarket A distributor, Supermarket B and manufacturing respectively 38.24%, 89.57% and 43.11%. The occurrence of information distortion to the demand of this product can identify the existence of bullwhip effect on the supply chain. The proposed improvement to overcome the bullwhip effect is by doing inventory control policy with Q model using Hadley-Within approach.