本文選題：工藝規(guī)劃 + 旋轉(zhuǎn)葉輪��； 參考：《重慶大學》2012年碩士論文

【摘要】：工藝規(guī)劃是工藝設計人員根據(jù)機械制造工藝學的相關原理和方法，規(guī)定產(chǎn)品或零件制造工藝過程和操作方法的關鍵技術活動，科學合理地進行產(chǎn)品工藝優(yōu)化決策是企業(yè)核心技術競爭力的重要體現(xiàn)，也是提高企業(yè)生產(chǎn)效率、降低制造成本和生產(chǎn)能耗的有效手段。旋轉(zhuǎn)葉輪是渦輪機的核心部件，其加工質(zhì)量對渦輪機性能有決定性的影響，但其結(jié)構(gòu)復雜，特別是復雜的葉片曲面加工一直是制約產(chǎn)品整體性能提升的瓶頸，也是衡量葉輪加工工藝水平的重要標志，因而關于旋轉(zhuǎn)葉輪工藝改進優(yōu)化的研究一直是機械制造領域的一項研究熱點。 鑒于工藝規(guī)劃在機械制造領域的重要性和旋轉(zhuǎn)葉輪的重要功用及其結(jié)構(gòu)特征，本文以整體提升旋轉(zhuǎn)葉輪機械工藝決策水平為研究目的，以重慶某增壓器廠的葉輪產(chǎn)品為研究對象，提出了一套旋轉(zhuǎn)葉輪機械工藝決策方法，并基于該方法設計了一套原型系統(tǒng)，從而為旋轉(zhuǎn)葉輪加工工藝的優(yōu)化決策提供技術支撐。 首先，研究旋轉(zhuǎn)葉輪工藝路線優(yōu)化方法。根據(jù)旋轉(zhuǎn)葉輪的結(jié)構(gòu)特征，，將工藝人員實踐經(jīng)驗和科學算法有效結(jié)合，提出一種基于模糊綜合評判和遺傳算法的旋轉(zhuǎn)葉輪工藝路線優(yōu)化決策方法，通過基于模糊綜合評判的工藝特征加工方案決策和基于遺傳算法的工序/工步優(yōu)化排序，最終得到可行并優(yōu)化的工藝路線。 其次，研究旋轉(zhuǎn)葉輪切削參數(shù)優(yōu)化方法。通過分析旋轉(zhuǎn)葉輪加工特征，建立面向多工序的切削參數(shù)優(yōu)化模型，并根據(jù)優(yōu)化問題特征設計一種復合形算法對模型進行求解，最終得到科學合理的切削參數(shù)。 再次，對機械工藝決策過程中的部分關鍵技術進行了研究�？紤]生產(chǎn)過程中工序質(zhì)量預測和出現(xiàn)質(zhì)量問題時的有效追溯，研究工序關聯(lián)關系；考慮在工藝設計階段有效規(guī)避生產(chǎn)過程中頻繁出現(xiàn)的瓶頸工序，研究瓶頸工序預測方法與規(guī)避及處理策略；提出一種工時定額制定方法，實現(xiàn)工時定額的科學規(guī)范管理。 最后，基于上述方法體系，設計了一套旋轉(zhuǎn)葉輪機械工藝決策支持原型系統(tǒng)，包括系統(tǒng)業(yè)務流程、技術方案、體系結(jié)構(gòu)、功能模型以及數(shù)據(jù)庫信息模型等的設計。并將本文研究內(nèi)容在重慶某增壓器廠葉輪產(chǎn)品的工藝設計中進行了應用，取得了良好的應用效果。
[Abstract]:Process planning is a key technical activity in which process planners specify the manufacturing process and operation methods of products or parts according to the relevant principles and methods of mechanical manufacturing technology. Scientific and reasonable decision-making of product process optimization is an important embodiment of the core technological competitiveness of enterprises and an effective means to improve production efficiency and reduce manufacturing costs and production energy consumption. Rotating impeller is the core part of turbine, and its machining quality has a decisive effect on turbine performance, but its structure is complex, especially the complicated blade surface processing is the bottleneck to improve the overall performance of the product. It is also an important indicator to measure the processing technology level of the impeller, so the research on the technological improvement and optimization of the rotary impeller is always a hot research topic in the field of mechanical manufacturing. In view of the importance of process planning in the field of mechanical manufacturing and the important functions and structural characteristics of rotating impeller, the purpose of this paper is to improve the level of technological decision-making of rotating impeller machinery as a whole. Taking the impeller products of a turbocharger factory in Chongqing as the research object, a set of technology decision method for rotating impeller machinery is put forward, and a prototype system is designed based on this method, which provides technical support for the optimization decision of rotary impeller processing technology. Firstly, the optimization method of rotating impeller technological route is studied. According to the structural characteristics of rotating impeller, combining the practical experience of craftsmen with scientific algorithm effectively, a method of optimizing the technological route of rotating impeller based on fuzzy comprehensive evaluation and genetic algorithm is put forward. Through the decision of process feature processing scheme based on fuzzy comprehensive evaluation and the optimization of process / step ranking based on genetic algorithm, a feasible and optimized process route is obtained. Secondly, the optimization method of cutting parameters of rotating impeller is studied. By analyzing the machining characteristics of rotating impeller, a multi-process oriented cutting parameter optimization model is established, and a complex algorithm is designed to solve the model according to the characteristics of the optimization problem. Finally, scientific and reasonable cutting parameters are obtained. Thirdly, some key technologies in the process of mechanical process decision are studied. Considering the prediction of process quality in production process and the effective tracing of quality problems, the relationship between processes is studied, and the frequently occurring bottleneck processes are effectively avoided in the stage of process planning. This paper studies the prediction method of bottleneck working procedure and the strategy of avoiding and dealing with it, and puts forward a method of establishing man-hour quota, which can realize the scientific and normative management of man-hour quota. Finally, based on the above method system, a prototype system of process decision support for rotating impeller machinery is designed, including the design of system business process, technical scheme, architecture, function model and database information model. The research content is applied in the process design of the impeller product of a turbocharger factory in Chongqing, and a good application effect is obtained.
【學位授予單位】：重慶大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH16

【參考文獻】

相關期刊論文 前10條

1 龐思勤;金屬切削技術的發(fā)展與展望[J];兵工學報;1999年03期

2 韓俊峰;;加工中心刀柄系統(tǒng)[J];四川工程職業(yè)技術學院學報;2007年03期

3 金仁成,李水進,唐小琦,周云飛,童強,賈瑜;智能自適應數(shù)控加工技術研究綜述[J];工具技術;2000年11期

4 胡亞輝;牛興華;鐘偉弘;徐燕申;;適用于柔性工藝規(guī)劃的分層規(guī)劃法[J];航空制造技術;2007年03期

5 陳fg暉,劉華明,孫春華;國內(nèi)外葉輪數(shù)控加工發(fā)展現(xiàn)狀[J];航天制造技術;2002年02期

6 李亮;孫軍;王軍;李仁堂;王淑紅;;基于STEP-NC的工藝規(guī)劃優(yōu)化方法研究[J];機電產(chǎn)品開發(fā)與創(chuàng)新;2006年03期

7 陳冰;江平宇;鄭鎂;張定紅;牛瑞峰;;基于e-制造模式的動態(tài)工藝規(guī)劃技術研究[J];計算機工程;2007年01期

8 張志英,唐承統(tǒng),張建民,王新永,孫連勝;遺傳算法在柔性CAPP與生產(chǎn)調(diào)度集成中的應用[J];計算機集成制造系統(tǒng)-CIMS;2002年08期

9 劉戰(zhàn)強,黃傳真,萬熠,艾興;切削數(shù)據(jù)庫的研究現(xiàn)狀與發(fā)展[J];計算機集成制造系統(tǒng)-CIMS;2003年11期

10 田穎;江平宇;周光輝;屈挺;;基于蟻群算法的零件多工藝路線決策方法研究[J];計算機集成制造系統(tǒng);2006年06期

相關博士學位論文 前1條

1 楊雨圖;支持雙語的協(xié)同CAPP系統(tǒng)若干關鍵技術研究[D];南京航空航天大學;2006年

相關碩士學位論文 前5條

1 戚家亮;整體葉輪五軸數(shù)控粗加工編程技術研究[D];南京航空航天大學;2011年

2 趙緒平;數(shù)控加工切削參數(shù)優(yōu)化的研究[D];沈陽工業(yè)大學;2006年

3 呂程輝;整體葉輪的五軸高速銑削加工工藝優(yōu)化[D];同濟大學;2007年

4 顧玉娜;整體葉輪的曲面造型及五軸數(shù)控加工[D];華中科技大學;2007年

5 陳彥鑫;基于遺傳算法的加工工藝規(guī)劃研究[D];哈爾濱工程大學;2008年

本文編號：1876474