Country-appropriate operating cost estimation scheme based on curve fitting for rice combine harvester

12th TSAE International Conference

Numsong, A.^1 ; Doungpueng, K.^1 ; Chuan-Udom, S.^1^2

Department of Agricultural Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen

40002, Thailand^1

Applied Engineering for Important Corps of the North East Research Group, Khon Kaen University, Khon Kaen

40002, Thailand^2

关键词: Combine harvesters;    Cost estimation models;    Cost estimations;    Estimation models;    MATLAB /simulink;    Power functions;    Repair and maintenance;    Variable costs;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/301/1/012007/pdf
DOI  :  10.1088/1755-1315/301/1/012007

来源: IOP

【 摘 要 】

This research explores two operating cost estimation models as a function of repair and maintenance (R&M) outlay for domestically-made rice combine harvesters: ASAE-based and power function-fitted estimation models. The goal is to establish a guideline for operating cost estimation suited to the agricultural context of Thailand. In the study, variable cost data belonged to the country's northeastern region. Simulations were carried out using MATLAB/Simulink and results compared. The ASAE-based operating cost estimations were consistently larger than those of power function-fitted model, and the divergence became more pronounced with increase in harvest area. The finding could be attributed to country-specificity in which R&M practices varied from country to country. Essentially, the power function-fitted estimation model is more suited to the agricultural context of Thailand, in comparison with the ASAE-based model which tends to overestimate the cost figure.