基于正交试验的盾构刀具磨损分析

发布时间：2018-06-05 05:08

本文选题：盾构 + 正交试验　；参考：《石家庄铁道大学》2015年硕士论文

【摘要】：伴随着城市现代化的进程,各地交通设施建设也得到快速发展,尤其是城市隧道交通,更是炙手可热。盾构隧道施工技术自产生以来,便在现代城市隧道建设中扮演了重要的角色,有着极其特殊的优越性。而在盾构施工中,盾构刀具的磨损情况又直接关系着盾构掘进的速率、质量和施工成本。也正基于此,盾构刀具的磨损研究在近年来成为了盾构研究领域里一个重要的研究方向。首先,在分析多种盾构刀具磨损量的数学模型及推理公式基础上,引入了正交试验的理论来分析盾构掘进过程中掘进参数和磨损量之间的数学关系,拟合出了参与正交试验的各因素和磨损量之间的非线性模型,通过分析拟合模型得出了各个因素对于磨损量的敏感度,确定一种关于参与正交试验三个因素最佳的掘进方案。最终为减少刀具磨损,提高掘进效率提供良好的理论依据,方便工作人员及时调整掘进参数,对施工进行整体控制。接着,利用模糊逻辑系统来处理盾构刀具的掘进参数和磨损量,并将模糊化模型得到的磨损量预测与工程实际中测得的数据进行对照分析,对结果进行了验证。通过建立模糊逻辑模型,还得到了各个因素分别与磨损量的非线性关系,进一步掌握了在掘进过程中,掘进参数对刀具磨损量的影响情况。最后,开发了可以设计正交试验的软件系统。将正交试验从设计到数据分析实现软件化,方便后续开展的正交试验的设计及数据分析。对正交试验分析系统的功能进行了详细的阐述。
[Abstract]:With the process of urban modernization, the construction of transportation facilities has been developed rapidly, especially the urban tunnel traffic. Since its emergence, shield tunnel construction technology has played an important role in the construction of modern urban tunnels, and has extremely special advantages. In shield construction, the wear of shield cutting tools is directly related to the speed, quality and construction cost of shield tunneling. Because of this, the research of shield tool wear has become an important research direction in the field of shield machine research in recent years. Firstly, on the basis of analyzing the mathematical models and reasoning formulas of various kinds of shield cutting tool wear, the theory of orthogonal test is introduced to analyze the mathematical relationship between the tunneling parameters and the wear amount in the shield tunneling process. The nonlinear model between the factors involved in the orthogonal test and the wear quantity is fitted out. The sensitivity of each factor to the wear quantity is obtained by analyzing the fitting model, and a kind of best tunneling scheme about the three factors involved in the orthogonal experiment is determined. Finally, it provides a good theoretical basis for reducing tool wear and improving tunneling efficiency, facilitates the staff to adjust the tunneling parameters in time, and controls the construction as a whole. Then, fuzzy logic system is used to deal with the tunneling parameters and wear quantity of shield cutting tools, and the prediction of wear quantity obtained by fuzzy model is compared with the measured data in engineering practice, and the results are verified. Through the establishment of fuzzy logic model, the nonlinear relationship between each factor and wear quantity is obtained, and the influence of tunneling parameters on tool wear is further grasped. Finally, a software system which can design orthogonal test is developed. The orthogonal test is realized by software from design to data analysis, which is convenient for the design and data analysis of orthogonal test. The function of orthogonal test analysis system is described in detail.
【学位授予单位】：石家庄铁道大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U455.39

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