论文信息 - Multidimensional force spectra of CNC machine tools and their applications, part one: force spectra

Multidimensional force spectra of CNC machine tools and their applications, part one: force spectra

The multidimensional force spectra of computerized numerical control (CNC) machine tools are described in this paper. One hundred and twelve medium-sized CNC machine tools have been tracked for three years. The data including the machining parameters and conditions, drawings and NC programs of parts, process cards and specifications of each individual CNC machine tool have been gathered. A database containing the above information was designed. The forces and speeds of CNC machine tools were calculated and the distribution parameters of forces and speeds were estimated respectively. A fuzzy multicriteria comprehensive evaluation method was applied to evaluate the fitness of distribution model. On the basis of the analysis of force and speed spectra, the multidimensional force spectra of CNC machine tools are proposed. This methodology lays a foundation for the reliability design of components of CNC machine tools.

Yazhou Jia | Yiqiang Wang | Guixiang Shen

[1] J. Aitchison,et al. The Lognormal Distribution. , 1958 .

[2] Bradley Efron,et al. Maximum Likelihood and Decision Theory , 1982 .

[3] Madan M. Gupta,et al. Approximate reasoning in decision analysis , 1982 .

[4] J. M. Finkelstein. Confidence Bounds on the Parameters of the Weibull Process , 1976 .

[5] Jia Zhixin,et al. Equivalent fatigue load in machine-tool probabilistic reliability. Part I: Theoretical basis , 1993 .

[6] Chang Huajian,et al. A practical reliability analysis method for engineers , 1995 .

[7] F. Massey. The Kolmogorov-Smirnov Test for Goodness of Fit , 1951 .

[8] Jia Zhixin,et al. A reliability approach to machine tool bearings , 1995 .

[9] Maurice Lemaire,et al. Reliability and mechanical design , 1997 .

[10] Yazhou Jia,et al. Load spectra of CNC machine tools , 2000 .

[11] Jia Yazhou. Analysis and calculation of fatigue loading of machine tool gears , 1991 .

[12] M. Gupta,et al. FUZZY INFORMATION AND DECISION PROCESSES , 1981 .

[13] N.R.S. Tait,et al. The use of probability in engineering design—an historical survey , 1993 .

[14] Jia Yazhou,et al. Fatigue load and reliability design of machine-tool components , 1993 .

[15] Jia Zhixin,et al. Equivalent fatigue load in machine-tool probabilistic reliability. Part II: Calculation methodology and practical applications , 1993 .