YSM公司基于六西格瑪?shù)陌l(fā)電機(jī)和齒輪箱調(diào)整對(duì)齊的質(zhì)量改進(jìn)研究
發(fā)布時(shí)間：2019-03-31 00:41
【摘要】：2011年6月，為了增強(qiáng)在風(fēng)電市場(chǎng)中的競(jìng)爭(zhēng)力，YSM公司引進(jìn)一場(chǎng)稱為“必贏”戰(zhàn)役。全球機(jī)艙工廠參與的大項(xiàng)目有兩個(gè)：精益生產(chǎn)和六西格瑪。質(zhì)量關(guān)鍵點(diǎn)中的改善發(fā)電機(jī)和齒輪箱對(duì)齊調(diào)整的質(zhì)量水平被提為六西格瑪項(xiàng)目。目前，YSM公司的發(fā)電機(jī)和齒輪箱調(diào)整對(duì)齊的質(zhì)量水平為二西格瑪左右，調(diào)整時(shí)間長(zhǎng)，且調(diào)整結(jié)果不穩(wěn)定。客戶對(duì)YSM公司的這一項(xiàng)質(zhì)量指標(biāo)的滿意度不高，甚至有時(shí)需要YSM公司派出維護(hù)人員，在客戶風(fēng)場(chǎng)中的幾十米高空上的風(fēng)機(jī)上去返工。 為了增強(qiáng)顧客滿意度，，響應(yīng)總部的號(hào)召，減少不良成本,YSM公司決定決定采用六西格瑪?shù)姆椒�，研究發(fā)電機(jī)和齒輪箱調(diào)整對(duì)齊的質(zhì)量改進(jìn)。 YSM公司按六西格瑪已經(jīng)成形的DMAIC模式進(jìn)行分析、論證、研究這一課題。首先，界定研究的范圍，識(shí)別同課題相關(guān)的關(guān)鍵過程；然后，明確并量化關(guān)鍵過程的輸出，制定改進(jìn)目標(biāo)；接著，使用魚骨圖等，推測(cè)影響過程失效的因素，再基于過程流程圖，對(duì)過程進(jìn)行分析，利用過程潛在失效模式和后果分析工具篩選出影響過程輸出的主要因素；緊接著，消除或減少這些假設(shè)的主要因素的影響，運(yùn)行過程并驗(yàn)證假設(shè)；最后，如果改進(jìn)方法有效，對(duì)改善的過程流程進(jìn)行文件化，編寫控制計(jì)劃，并對(duì)過程進(jìn)行統(tǒng)計(jì)控制，以保持改進(jìn)的成果。在研究這一課題的過程中，我們使用了大量的工具、圖形和圖表，如流程圖，魚骨圖，因果矩陣，過程潛在失效模式和后果分析，Minitab軟件等。 YSM公司通過六西格瑪方法，最終找到了提高發(fā)電機(jī)和齒輪箱調(diào)整對(duì)齊質(zhì)量水平的方法，能夠?qū)⑦@一過程的質(zhì)量水平由原來的二西格瑪提高到六西格瑪，且縮短了調(diào)整時(shí)間。如果按此優(yōu)化的流程操作的話，將大大降低生產(chǎn)成本和質(zhì)量成本，并提高工作效率。在研究和實(shí)踐的過程中，我們逐漸掌握了六西格瑪?shù)腄MAIC方法，熟悉了測(cè)量系統(tǒng)分析，控制圖，過程失效模式及后果分析，Minitab軟件等工具，并在項(xiàng)目的團(tuán)隊(duì)活動(dòng)中增強(qiáng)了團(tuán)隊(duì)的協(xié)作能力。
[Abstract]:In June 2011, to enhance its competitiveness in the wind power market, YSM introduced a campaign called "win-win". There are two major projects involved in global cabin plants: lean production and six Sigma. Quality key improvements in the alignment of generators and gearboxes were raised to the six Sigma project. At present, the quality level of YSM's generator and gearbox alignment is about two Sigma, the adjustment time is long, and the adjustment result is unstable. Customer satisfaction with this quality indicator from YSM is not high and sometimes requires YSM to send maintenance personnel to rework fans at dozens of meters in the customer's wind field. In order to increase customer satisfaction and respond to the headquarters call to reduce bad costs, YSM decided to use the six Sigma approach to study quality improvements in the alignment of generators and gearboxes. YSM company carries on the analysis, the demonstration according to the six Sigma already formed the DMAIC pattern, studies this subject. Firstly, the scope of the research is defined, and the key processes related to the subject are identified. Then, the output of the key process is defined and quantified, and the improvement objectives are formulated. Then, the fish bone diagram is used to infer the factors that affect the process failure, and then based on the process flow chart, the process is analyzed, and the main factors affecting the process output are selected by using the process potential failure mode and the consequence analysis tool. Then, eliminate or reduce the influence of the main factors of these assumptions, run the process and verify the assumptions; Finally, if the improved method is effective, the improved process flow is documented, the control plan is written, and the statistical control of the process is carried out in order to maintain the improved results. In the process of studying this subject, we use a large number of tools, graphs and diagrams, such as flowchart, fish bone diagram, cause and effect matrix, process potential failure mode and consequence analysis, Minitab software, and so on. Through the six Sigma method, YSM has finally found a way to improve the alignment quality level of generators and gearboxes, which can raise the quality level of this process from two Sigma to six Sigma and shorten the adjustment time. If you follow this optimized process, you will greatly reduce production costs and quality costs, and improve productivity. In the process of research and practice, we have gradually mastered the six Sigma DMAIC method, familiar with the measurement system analysis, control charts, process failure modes and consequences analysis, Minitab software, and other tools. And in the project's team activities to enhance the team's ability to collaborate.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：F273.2;F426.4
本文編號(hào)：2450664
[Abstract]:In June 2011, to enhance its competitiveness in the wind power market, YSM introduced a campaign called "win-win". There are two major projects involved in global cabin plants: lean production and six Sigma. Quality key improvements in the alignment of generators and gearboxes were raised to the six Sigma project. At present, the quality level of YSM's generator and gearbox alignment is about two Sigma, the adjustment time is long, and the adjustment result is unstable. Customer satisfaction with this quality indicator from YSM is not high and sometimes requires YSM to send maintenance personnel to rework fans at dozens of meters in the customer's wind field. In order to increase customer satisfaction and respond to the headquarters call to reduce bad costs, YSM decided to use the six Sigma approach to study quality improvements in the alignment of generators and gearboxes. YSM company carries on the analysis, the demonstration according to the six Sigma already formed the DMAIC pattern, studies this subject. Firstly, the scope of the research is defined, and the key processes related to the subject are identified. Then, the output of the key process is defined and quantified, and the improvement objectives are formulated. Then, the fish bone diagram is used to infer the factors that affect the process failure, and then based on the process flow chart, the process is analyzed, and the main factors affecting the process output are selected by using the process potential failure mode and the consequence analysis tool. Then, eliminate or reduce the influence of the main factors of these assumptions, run the process and verify the assumptions; Finally, if the improved method is effective, the improved process flow is documented, the control plan is written, and the statistical control of the process is carried out in order to maintain the improved results. In the process of studying this subject, we use a large number of tools, graphs and diagrams, such as flowchart, fish bone diagram, cause and effect matrix, process potential failure mode and consequence analysis, Minitab software, and so on. Through the six Sigma method, YSM has finally found a way to improve the alignment quality level of generators and gearboxes, which can raise the quality level of this process from two Sigma to six Sigma and shorten the adjustment time. If you follow this optimized process, you will greatly reduce production costs and quality costs, and improve productivity. In the process of research and practice, we have gradually mastered the six Sigma DMAIC method, familiar with the measurement system analysis, control charts, process failure modes and consequences analysis, Minitab software, and other tools. And in the project's team activities to enhance the team's ability to collaborate.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：F273.2;F426.4
【參考文獻(xiàn)】
相關(guān)期刊論文 前3條
1 李軍軍;吳政球;譚勛瓊;陳波;;風(fēng)力發(fā)電及其技術(shù)發(fā)展綜述[J];電力建設(shè);2011年08期
2 苑玉鳳;六西格瑪管理的要點(diǎn)[J];汽車科技;2004年06期
3 崔傳濤;;汽輪發(fā)電機(jī)組軸系找中心計(jì)算方法[J];華電技術(shù);2011年01期
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