复杂结构产品装配物料配送若干关键技术研究

发布时间：2018-03-28 08:44

本文选题：飞机装配　切入点：物料配送　出处：《南昌航空大学》2017年硕士论文

【摘要】：物料配送是装配生产环节的纽带,是装配制造环节的有利保障。由于复杂结构产品具有产品结构复杂、装配层级多、涉及物料种类繁多等特点,产品在装配过程中所需物料必须均衡、及时、合理配送到位,才能保证制造企业装配生产线的畅通。目前复杂结构产品装配生产线效率高与物料配送效率低之间的矛盾,严重影响了制造企业的装配生产效率。因此,复杂结构产品装配物料配送是制造企业发展研究的重要内容。本文以江西省重点研发计划项目“复杂结构产品装配物料配送关键技术研究”(20161BBE53005)为任务背景,以飞机作为复杂结构产品的研究对象,主要工作分为如下几个部分:(1)提出构建谱系化多状态飞机产品构型,运用物料清单(Bill of Material,BOM)多视图转换映射技术,按照装配工艺流程和装配工位结构分解,依次完成制造BOM向装配BOM、装配BOM向配送BOM的数据映射模型,构建谱系化多状态飞机装配物料配送BOM模型。最后通过某型号飞机系列的起落架为实例,基于起落架制造工艺流程分解给出起落架的配送BOM模型。(2)针对飞机装配过程中,由于工人熟练程度、装配技术水平等不确定性因素导致生产节拍发生波动,从而引起的装配工位物料需求时间模糊化的现象。提出基于正态模糊时间窗的工位物料需求时间参数表征方法,其模糊数的隶属度表征工位的满意度。建立基于正态模糊时间窗约束的飞机装配物料配送路径规划数学模型,并利用遗传算法对该模型进行求解。最后对工程应用实例进行配送路径规划仿真。仿真结果表明,该方法拥有较好的经济效益和可行性。(3)为了避免在物料配送过程中的信息缺失,将二维条码技术应用在物料配送过程中,构建了二维条码的数据采集架构,并开发了二维条码软件。最后以汉信码为实例,阐述了二维条码在物料配送过程的应用研究。
[Abstract]:Material distribution is the link of assembly production and the favorable guarantee of assembly manufacturing. In order to ensure the smooth flow of assembly line of manufacturing enterprise, the material needed in the assembly process must be balanced, timely and reasonably distributed, and the contradiction between the high efficiency of assembly line and the low efficiency of material distribution in complex structure product assembly line can be ensured. The assembly production efficiency of manufacturing enterprises is seriously affected. The assembly material distribution of complex structure products is an important content in the development of manufacturing enterprises. This paper takes the key R & D project of Jiangxi Province, "Research on key Technology of Assembly material Distribution of complex structural products", as the background of the task, "20161BBE53005". Taking aircraft as the research object of complex structure products, the main work is divided into the following parts: 1) to construct the product configuration of pedigree multi-state aircraft, and to use Bill of material (BOM) multi-view mapping technology. According to assembly process flow and assembly station structure decomposition, the data mapping model of manufacturing BOM to assembly BOM and assembly BOM to distribution BOM is completed in turn. The BOM model of multistate aircraft assembly material distribution is constructed. Finally, through the landing gear of a certain aircraft series as an example, based on the landing gear manufacturing process decomposition, the landing gear distribution BOM model. Due to uncertainties such as worker proficiency, assembly technology level and so on, the production rhythm fluctuates. This paper presents a representation method of time parameter of material requirement based on normal fuzzy time window, which is caused by the phenomenon of fuzziness of material requirement in assembly station. The membership degree of the fuzzy number represents the satisfaction of the station. A mathematical model of aircraft assembly material distribution path planning based on normal fuzzy time window constraint is established. The genetic algorithm is used to solve the model. Finally, the distribution path planning simulation of engineering application is carried out. The simulation results show that, This method has good economic benefit and feasibility. In order to avoid the lack of information in the process of material distribution, the two-dimensional barcode technology is applied in the process of material distribution, and the data acquisition framework of two-dimensional bar code is constructed. Finally, taking Hanshin code as an example, the application of two-dimensional bar code in material distribution process is discussed.
【学位授予单位】：南昌航空大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：V262.4;TP18;TP391.44

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