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 Posted: Thu 1:08, 09 Dec 2010 Post subject: tory burch sale Analysis coaxial error evaluation |
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Analysis coaxial error evaluation and several computer algorithms
Table 2 reflects this situation, this may be due to the advantages due to the vicinity of local minima exist. . . For comparison the results of the pros and cons, the table also cut out the actual axis of the base out of the inclusive ideal cylindrical surface diameter d, d the smaller the error value corresponding to the more accurate concentricity. Application of three methods to change the initial parameters and the termination of restrictions, after repeated calculated the actual axis of the ideal of an inclusive basis the minimum diameter of cylindrical surface d = 11.26pro, corresponding with Figure 2, a l9 -, I2 atlas 1 algorithm concentricity error (m) (m) computing time i three 10-8.8811.37555 × 10-48.80l1.366361048.96l1.35545 atlas 2 operator hung 12 of the coaxial error (m) d (m) calculated When asked I5xl01048.16l1.50250 Ⅱ l0'j × 10 a a48.0711.51310 'Ⅲ 5xlO a 010 - 5 {8.1611.523 '50 atlas unit (m) coordinates of the vertical distance from the 48.164124148.88371Bg48.199418049.0671660 4B . 164124448.883719248.1g941834g. D57I662 axis error,[link widoczny dla zalogowanych], '= 49.061zm. If this result as the optimal value, Table 1, Table 2,[link widoczny dla zalogowanych], the maximum relative error of the results is about 2,[link widoczny dla zalogowanych], but also show that the minimum conditions for the value assessment method of the coaxial error evaluation method may not be less than the least square coaxial error. According to the definition of concentricity error, using formula (4) and (10) Calculate the least square centers prepared by brake elements of the distance to the baseline to calculate the vertical distance,[link widoczny dla zalogowanych], which coordinates the use of a more complex expression to coordinate distance calculation, the expression can be obtained simplified. Table 3 lists the simplex method be considered in two parts from the results. Thus, the use of coordinate distance in the practical accuracy is sufficient. The results from the preliminary analysis of the actual point of view, the simplex method is faster, better convergence, the results of the smaller fraction. Calculation speed and direction of acceleration method is similar to the simplex method, but the program longer, the results of relatively high scores. Remove operation step slower speed, the result of relatively high scores, but the program is shorter, takes less memory. V. Conclusion 1. Full part in the oval under the premise of the functional requirements, with the least square method for evaluation of coaxial error, the program is simple, take up less memory on the machine running time is short. But the results can not serve as the basis for arbitration. 2. Chain obtained using the optimization operators meet the minimum criteria of the coaxial error, its value can be used as the basis for arbitration. 3 This article provides for the development of digital models and algorithms control the computer system to provide the small coaxial theoretical basis for smart meter. A 20 - References [1] ZhangYu, LiuPingandZhangKui-wei. TheRespecttoSiugleDatumAxisa. dDataig,[link widoczny dla zalogowanych], 1988. MathematicalModelso / CoaxalErrormProcessi. gcr port c port mPfer, ICPE88, Be a [2] Xue Jiaqing compiled, \TheAnalyticalEvaluationofCoaxalityErrorandSomeAlgorithmswithaComputerLiuPingandZhangYuAbstract - Themathematicalmodelsofcoaxalityerr0rbyevaluati0n0fthe0thogonalleastsquaremethodandtheminimumconditionmethodarepresentedi Ⅱ thispaper ・ Onthiasis, threekindsofoptimizationalgorithmsforthemi Ⅱ imumc0nditi0nlti. \
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