An integrated production-inventory model for food products adopting a general raw material procurement policy

7th AIC‐ICMR on Sciences and Engineering 2017

自然科学;工业技术

Fauza, G.^1 ; Prasetyo, H.^2 ; Amanto, B.S.^1

Dept. of Food Technology, Universitas Sebelas Maret, Surakarta, Indonesia^1

Pusat Studi Logistik Dan Optimisasi Industri (PUSLOGIN), Dept. of Industrial Engineering, Universitas Muhammadiyah, Surakarta, Indonesia^2

关键词: Deteriorating items;    Discounted price;    Food industries;    Integrated production-inventory model;    Inventory modeling;    Material procurement;    Objective functions;    Production cycle;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/352/1/012013/pdf
DOI  :  10.1088/1757-899X/352/1/012013

来源: IOP

【 摘 要 】

Studies on an integrated production-inventory model for deteriorating items have been done extensively. Most of the studies define deterioration as physical depletion of some inventories over time. This definition may not represent the deterioration characteristics of food products. The quality of food production decreases over time while the quantity remains the same. Further, in the existing models, the raw material is replenished several times (or at least once) within one production cycle. In food industries, however, a food company, for several reasons (e.g., the seasonal raw materials, discounted price, etc.) sometimes will get more benefit if it orders raw materials in a large quantity. Considering this fact, this research, therefore, is aimed at developing a more representative inventory model by (i) considering the quality losses in food and (ii) adopting a general raw material procurement policy. A mathematical model is established to represent the proposed policy in which the total profit of the system is the objective function. To evaluate the performance of the model, a numerical test was conducted. The numerical test indicates that the developed model has better performance, i.e., the total profit is 2.3% higher compared to the existing model.