Determining the optimal cycle length for a multiproduct EMQ problem considering rework and overtime options

Chiu, Yuan‐Shyi Peter; Wu, Cheng-Sian; Chiu, Victoria; Sung, Peng-Cheng

doi:10.1016/j.jksues.2019.03.004

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“…Recent works on multi-product economic lot sizing include Taleizadeh et al 38 who developed an EPQ model with process interruption, scrapped, rework, and backorders. Chiu et al 39 developed a multi-product economic manufacturing quantity model involving rework and overtime production. The authors proved convexity of the objective function of their model.…”

Section: Literature Reviewmentioning

confidence: 99%

Economic production quantity model with variable machining rates and product quality

AlDurgam

Selim

Al‐Shihabi³

et al. 2019

International Journal of Engineering Business Management

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The literature has several models that jointly determine the economic production quantity (EPQ) and the rate of production. Very few models define production rate explicitly. In this article, the cutting speed controls the production rate and the proportion nonconforming. Thus, we propose a model that integrates EPQ, machining economics and quality. Even though the objective function of the model is non-convex, we show for realistic values of some technical parameters that a local minimum of the proposed mathematical model is also global. Examples clearly show the effect of the production economics factors on the optimal machining speed and production quantity.

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Section: Literature Reviewmentioning

confidence: 99%