面向售后信息的汽车零部件质量故障分析研究

发布时间：2018-02-22 16:02

本文关键词： 故障模式分析零部件故障分析 DEMATEL法网络分析法　出处：《重庆大学》2016年硕士论文　论文类型：学位论文

【摘要】：随着我国经济的发展,自主品牌汽车发展态势迅猛,正经历着由最初的价格占领市场向品牌占领市场的转型。同时,顾客购买汽车也变的更加多样化、个性化,而安全性可靠性是购买汽车时的首要选择因素。目前,企业在三包期内要投入大量的费用用于汽车的售后维修,不仅对企业造成直接经济损失,而更大的却是顾客流失、满意度下降带来的无形损失。自主品牌汽车企业越来越重视汽车的质量,因此,本文面向售后维修数据,对零部件故障定性定量的分析,从汽车生产制造使用全生命周期的角度为提高汽车质量提出了的建议。首先,在系统划分的基础上,从用户可观察到的故障现象入手,对主要零部件进行故障模式分析。采用了非线性的严重程度计算方法,并进行风险分析,计算了风险优先系数。其次,用VIKOR法零部件故障进行排序,选取企业实际应用的影响因素,用DEMATEL法求解各个影响因素之间的相互关系。在此基础上用网络分析法,求解各个影响因素的权重和面向售后信息的零部件故障程度,为提高汽车整车质量提出了几点建议。最后,用CA公司某款畅销车型的制动系统进行实例研究。在制动系统故障模式的基础上对制动系统进行故障模式分析和风险分析,对零部件故障排序,求解各个影响因素的权重和零部件的故障程度,针对制动系统提出了简单建议。
[Abstract]:With the economic development of our country, the development situation of self-owned brand automobile is swift and violent, and it is experiencing the transition from the initial price occupation market to the brand occupation market. At the same time, the purchase of automobile by customers has become more diversified and individualized. And safety and reliability are the first choice when buying a car. At present, enterprises have to invest a large amount of money in after-sale maintenance of cars during the three-package period, which not only causes direct economic losses to the enterprises, but also results in the loss of customers. The invisible loss caused by the decline of satisfaction degree. The independent brand automobile enterprises pay more and more attention to the quality of the automobile. Therefore, this paper aims at the after-sales maintenance data, and analyzes the fault of the parts qualitatively and quantitatively. This paper puts forward some suggestions for improving the quality of automobile from the point of view of the whole life cycle of automobile production and manufacture. Firstly, on the basis of system partition, the author starts with the trouble phenomenon observed by the user. The failure mode analysis of main parts is carried out. The nonlinear severity calculation method is adopted, and the risk priority coefficient is calculated by risk analysis. Secondly, the VIKOR method is used to sort the fault of parts and components. DEMATEL method is used to solve the relationship between each factor, and the weight of each factor and the fault degree of parts facing to after-sale information are calculated by network analysis method. In order to improve the quality of the whole vehicle, some suggestions are put forward. Finally, the braking system of a best-selling car in CA Company is studied as an example. The fault mode analysis and risk analysis of the braking system are carried out on the basis of the fault mode of the braking system. In order to solve the weight of each factor and the fault degree of parts, some simple suggestions for braking system are put forward.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U472

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