某汽车制造公司生产物流系统仿真与优化

发布时间：2018-11-09 18:48

【摘要】：生产物流直接影响企业的产出率。针对某汽车公司不能按期交货的问题,通过现场调研和分析,发现生产过程的涂装工序是影响整体效益的关键环节。物料从进入涂装车间开始,依次经过前处理、喷涂、检查、烘干和暂存等5道工序,根据各工序目前作业情况,应用Witness软件建模并仿真,运行结果表明,涂装过程的喷涂是整个物流的瓶颈环节。汽车经常会有多种颜色喷涂,但目前只有一条生产线,从而产生了喷涂等待时间过长、物料往复搬运等问题。针对该问题,决定在现场通过再增加两条喷涂生产线来解决,并建立新的Witness模型。结果显示,生产线运行中的堵塞现象得到明显改善,汽车涂装的平均时间从100min减少到88.5min。将此改善方案应用在企业中,汽车的月产量从1 000台提高到1 250台,为企业创造了良好的经济效益。
[Abstract]:Production logistics directly affects the productivity of enterprises. In view of the problem that a certain automobile company can not deliver the goods on time, through field investigation and analysis, it is found that the coating process of the production process is the key link that affects the overall benefit. Starting from entering the painting workshop, the materials are processed by five processes, such as pre-treatment, spraying, inspection, drying and temporary storage. According to the current working conditions of each process, the Witness software is used to model and simulate the material. The results show that, The spraying of coating process is the bottleneck of the whole logistics. Cars often have a variety of color spray, but at present there is only one production line, resulting in long spray waiting time, material handling and other problems. In order to solve this problem, it is decided to add two more spray lines to solve the problem and establish a new Witness model. The results show that the blockage of the production line is obviously improved and the average time of automobile painting is reduced from 100min to 88.5min. Applying this improvement scheme to enterprises, the monthly output of automobile is increased from 1 000 to 1 250, which has created good economic benefits for the enterprise.
【作者单位】：西安科技大学机械工程学院;
【分类号】：F252;F407.471;TP391.9

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