Optimal Inventory Policy for Flexible Manufacturing System Producing Imperfect Items

Abstract

In traditional manufacturing inventory model, it is assumed that manufacturing newlinesystems are entirely reliable. But for about every actual manufacturing unit this supposition newlineneed not to be true. It s always feasible for, even the most advanced, manufacturing unit to newlineproduce imperfect items. In the present work, diverse inventory models are planned for a newlinemanufacturing unit which produces perfect, and after a while, defective items. It s been newlineassumed that demand is time-dependent and production is greater than demand. The rate of newlineproduction of items is directly affected by demand. A further assumption is made that the newlinesystem starts producing imperfect items after some time of operation due to various factors. newlineFor imperfect items, collection and repair work has been considered which optimizes the newlineinventory. Repair of the imperfect items starts when regular production stops. If the inventory newlineis less, the cost will increase. Therefore, rather than to throw the imperfect items, if we collect newlineand repair them with the same holding cost, the total inventory will increase and the newlinecorresponding cost will decrease. Total completion time of repair depends upon the inventory newlineat which the production stops. newlineIn this present work, another inventory model for production of a single article with newlinean uneven manufacturing rate and manufacturing time subsidiary selling cost has also been newlineconsidered. The considered production inventory model is accepted to create perfect items in newlinebeginning however because of different elements, after some time the production begins newlinediminishing exponentially with time, i.e., the variable production rate has been thought of. newlineThe demand is time subordinate. By utilizing differential calculus, expected maximum profit newlinehas been resolved. The goal of the examination is to decide the ideal arrangement for a newlineproduction framework that expands the total benefit subject to certain limitations viable. newlineResults are examined by means of a mathematical example to outline the hypothesis. In the newlineevent that such circumstanc