【摘要】：機(jī)械設(shè)備是工業(yè)生產(chǎn)的基礎(chǔ)，在國(guó)家政策振興工業(yè)的大時(shí)代背景下其地位顯得尤為重要。當(dāng)今工業(yè)生產(chǎn)對(duì)象的多樣化、生產(chǎn)產(chǎn)品更新速度的日新月異以及機(jī)械設(shè)備使用人群的變化決定了機(jī)械設(shè)備設(shè)計(jì)理論的重要性。 在二十世紀(jì)八十年代后，出現(xiàn)了可用性概念的雛形，并在后期階段逐漸成熟和發(fā)展列入國(guó)家標(biāo)準(zhǔn)。該理論以對(duì)用戶友好為基本出發(fā)點(diǎn)，綜合反映了所設(shè)計(jì)產(chǎn)品的諸如可靠性、可維修性等性能指標(biāo)，本文中重點(diǎn)討論復(fù)雜機(jī)械設(shè)備的可靠性設(shè)計(jì)。 機(jī)械設(shè)備的可靠性是機(jī)械設(shè)備的一種內(nèi)在屬性，是一個(gè)綜合性的指標(biāo)�；诳煽啃缘臋C(jī)械設(shè)備數(shù)字化設(shè)計(jì)對(duì)于既定工況下全面提升設(shè)備工作性能起著至關(guān)重要的作用。本文以機(jī)械設(shè)備用戶友好為出發(fā)點(diǎn)，主要針對(duì)機(jī)械設(shè)備可靠性設(shè)計(jì)提出了全數(shù)字化設(shè)計(jì)、分析、檢驗(yàn)、優(yōu)化方法體系，并以機(jī)床作為復(fù)雜機(jī)械設(shè)備的代表，以國(guó)家重大專項(xiàng)青海第一機(jī)床廠HMC80機(jī)床為具體案例進(jìn)行了詳細(xì)分析。 首先，通過(guò)機(jī)床工況進(jìn)行受力分析與計(jì)算，以計(jì)算結(jié)果作為約束條件，通過(guò)拓?fù)鋬?yōu)化方法對(duì)機(jī)床進(jìn)行整體的結(jié)構(gòu)設(shè)計(jì)。 其次，根據(jù)設(shè)計(jì)方案建立整機(jī)的數(shù)字模型，針對(duì)模型進(jìn)行基于可靠性的零部件及整機(jī)的靜力學(xué)和動(dòng)力學(xué)分析，，同時(shí)通過(guò)頻域法數(shù)據(jù)采集方式驗(yàn)證機(jī)床數(shù)字模型以及分析方法的準(zhǔn)確度。 最后，基于分析結(jié)果針對(duì)機(jī)床進(jìn)行全面的細(xì)節(jié)優(yōu)化，從而為更加符合機(jī)床工作條件的結(jié)構(gòu)設(shè)計(jì)提供更具可靠性的設(shè)計(jì)方案。
[Abstract]:Mechanical equipment is the foundation of industrial production, and its status is especially important under the background of national policy to revitalize industry. The importance of mechanical equipment design theory is determined by the diversification of industrial production objects, the rapid change of product renewal rate and the changes of the people using machinery and equipment. After 1980's, the concept of usability appeared in its embryonic form, and gradually matured and developed into the national standard in the later stage. The theory takes user friendliness as the basic starting point and comprehensively reflects the reliability and maintainability of the designed products. In this paper, the reliability design of complex mechanical equipment is mainly discussed. The reliability of mechanical equipment is an internal attribute of mechanical equipment and a comprehensive index. The digital design of mechanical equipment based on reliability plays an important role in improving the working performance of the equipment under given working conditions. Based on the user friendliness of machinery and equipment, this paper puts forward an all-digital design, analysis, inspection and optimization method system for reliability design of mechanical equipment, and takes the machine tool as the representative of complex mechanical equipment. The HMC80 machine tool of Qinghai No.1 Machine tool Factory is analyzed in detail. Firstly, the mechanical analysis and calculation are carried out under the working conditions of the machine tool, and the overall structure of the machine tool is designed by topological optimization method with the result of calculation as the constraint condition. Secondly, the digital model of the whole machine is established according to the design scheme, and the statics and dynamics analysis of the whole machine based on the reliability of the model is carried out. At the same time, the accuracy of the digital model and the analytical method is verified by the method of data acquisition in frequency domain. Finally, based on the analysis results, the overall detail optimization of the machine tool is carried out, which provides a more reliable design scheme for the structure design which is more suitable to the working conditions of the machine tool.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH122

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