寿命随机分布下设备易损件的经济使用寿命与采购策略

发布时间：2018-06-24 17:47

本文选题：寿命随机分布 + 易损件　；参考：《武汉理工大学》2015年硕士论文

【摘要】：随着市场竞争的日益剧烈和产品质量问题对社会的稳定以及可持续发展的影响也越来越受到社会的重视,产品质量已经能够作为企业的一种重要的营销手段在剧烈的市场竞争中进行运用,在当前的经济形势下,设备作为企业生产产品的唯一载体,已经逐渐发展成为企业走出世界走向全球化的关键。设备的运行与管理的主要内容包括在使用过程中对设备的维护、检修以及零配件的供应等,而企业能够创造经济效益的时候也正是设备工作运转的时候。因此设备在这个阶段能否安全稳定有保障的运转,不仅会对企业生产计划的制定以及实现造成影响,甚至还会影响到整个企业的生产效率和经济效益。随着设备制造技术的飞速发展以及科学技术的进步,现代制造设备的结构也愈趋复杂,制造型企业的设备关键易损件在寿命随机分布的条件下,经常由于各种不确定因素导致设备的故障甚至停机,易损件订单采购跟不上设备管理需求,造成不必要的损失,这不仅严重影响到企业的生产效率,也极大的削弱了企业在市场中的竞争力。本文主要围绕设备关键易损件的寿命分布展开,分别建立两种模型针对设备不同的情况进行分析,提出将设备易损件需求预测、寿命分析、采购策略以及库存策略相结合的模型来求解基于不同供应链环境下设备易损件的经济使用时间和采购策略问题,同时将建立采购周期内设备运行的成本优化模型,采用将搜索算法和穷尽法等算法相结合的混合启发式算法来优化模型,得到最优配置解。通过本文的研究,将为企业建立快速反应机制,能够更好的确定设备的最优使用时间,从而更好的做出更换决策,减少甚至消除掉设备故障停机等引进的一系列问题,提高设备易损件订单采购的预测准确性和执行高效性,最终来达到增强制造企业核心竞争力的目的。
[Abstract]:With the increasingly fierce competition in the market and the impact of product quality on social stability and sustainable development, more and more attention has been paid to it. Product quality has been used as an important marketing means of enterprises in the fierce market competition, in the current economic situation, equipment as the only carrier of enterprise production products, It has gradually developed into the key for enterprises to go out of the world and go global. The main contents of the operation and management of the equipment include the maintenance of the equipment, the maintenance of the equipment and the supply of spare parts in the process of use, and the time when the enterprise can create economic benefits is also the time for the operation of the equipment. Therefore, whether the equipment can run safely and stably at this stage will not only affect the establishment and realization of enterprise production plan, but also affect the production efficiency and economic benefit of the whole enterprise. With the rapid development of equipment manufacturing technology and the progress of science and technology, the structure of modern manufacturing equipment is becoming more and more complex. Often due to various uncertain factors, equipment failure or even downtime, the purchase of vulnerable parts can not keep up with the equipment management requirements, resulting in unnecessary losses, which not only seriously affect the production efficiency of enterprises. It also greatly weakened the competitiveness of enterprises in the market. This paper mainly focuses on the distribution of the life of the key parts of the equipment. Two models are established to analyze the different conditions of the equipment, and the demand forecast and life analysis of the equipment are put forward. The model of purchasing strategy and inventory strategy is combined to solve the problem of the economical usage time and purchasing strategy of the equipment vulnerable parts under different supply chain environment. At the same time, the cost optimization model of the equipment running in the purchasing cycle will be established. A hybrid heuristic algorithm, which combines search algorithm with exhaustive algorithm, is used to optimize the model and obtain the optimal collocation solution. Through the research in this paper, the rapid reaction mechanism will be established for the enterprise, which can better determine the optimal service time of the equipment, thus better make the replacement decision, reduce or even eliminate a series of imported problems such as equipment failure and downtime, etc. Improve the accuracy and efficiency of the order purchase of equipment parts, and finally achieve the purpose of enhancing the core competitiveness of manufacturing enterprises.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F273.4;F425

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