F公司P类产品生产线混流改造研究

发布时间：2018-08-24 19:06

【摘要】：随着经济的发展和消费者需求的变化,传统的单一品种的生产方式己经不再适应市场的发展。同时,由于消费者对产品个性化的要求越来越高,产品呈现出多样化的趋势,单一或少品种的产品生产已经不能满足消费者的需求。因而,多品种混流生产线逐渐成为制造业发展的趋势。随着混流生产线大规模的应用,混流生产线应用中出现的问题也逐渐呈现出来,然而国内企业对混流生产线缺乏系统性的研究,造成混流生产线的平衡效率普遍偏低。因此找到一个合理有效的混流生产线规划及平衡方法对当前形势下的企业具有重要的意义。本文选取F公司P类产品作为研究对象,首先对P类产品的生产线现状进行调查和分析,P类产品的生产线都是传统的单一品种的生产线,其中P1、P2两种产品的产能大于客户的订单量,造成生产线闲置的情况,是另一种形式的浪费,给企业带来不必要的损失。因此,需要对P1、P2两种产品的生产线进行改造。由于P1、P2两种产品是P类产品中不同型号的产品,两种产品具有很大的相似性,满足混流生产的条件,故对这两种产品进行混流改造。本文运用工业工程基本理论和方法对进行混流的两种产品进行分析,确定流水线的作业优先顺序图。利用启发式平衡方法对混流装配线进行工位规划,确定流水线所需的最小工位数,并对规划好的流水线进行改善。在排序问题上将优化流水线平衡这一多目标问题转化为求闲置与超载时间之和最小的单一目标问题,并对目标函数建立了数学模型。采用遗传算法对建立的模型进行求解,实现对混流装配线优化的目的。
[Abstract]:With the development of economy and the change of consumer demand, the traditional single-variety mode of production no longer adapts to the development of market. At the same time, because of the higher and higher demand of the consumer to the product individuation, the product presents the diversification tendency, the single or the small variety product production already can not satisfy the consumer's demand. Therefore, multi-variety mixed-flow production line has gradually become the trend of manufacturing development. With the large-scale application of mixed-flow production line, the problems appeared gradually in the application of mixed-flow production line. However, the lack of systematic research on mixed-flow production line in domestic enterprises has resulted in the low balance efficiency of mixed-flow production line. Therefore, to find a reasonable and effective mixed production line planning and balancing method is of great significance to the enterprises under the current situation. In this paper, we select P products of F Company as the research object. Firstly, we investigate and analyze that the production line of class P product is a traditional single product line. The production capacity of the two products is larger than the customer's order quantity, which results in the idle production line, which is another form of waste and brings unnecessary losses to the enterprise. Therefore, it is necessary to reform the production line of P 1 and P 2 products. Due to the fact that the two kinds of products are different types of P products, the two kinds of products have great similarity and meet the conditions of mixed production, so the two products are reformed by mixed flow. In this paper, the basic theory and method of industrial engineering are used to analyze the two kinds of mixed flow products and to determine the operation priority diagram of the assembly line. A heuristic balance method is used to plan the work station of the mixed flow assembly line, to determine the minimum number of stations needed for the assembly line, and to improve the planned assembly line. In order to solve the scheduling problem, the multi-objective problem of optimal pipeline balance is transformed into a single objective problem with the minimum sum of idle and overload time, and the mathematical model of the objective function is established. Genetic algorithm is used to solve the model to realize the optimization of mixed flow assembly line.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：F273;F424

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