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A method for controlling distortion of a turbine case ("case") includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index ("index

A method for controlling distortion of a turbine case ("case") includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index ("index") resulting from the thermal stresses, and comparing the index with at least one distortion limit to determine whether the case has a satisfactory or an unsatisfactory index. The temperature distribution is controlled for an unsatisfactory index to produce the satisfactory index. A system for controlling distortion of the turbine case includes a thermal measurement system, for measuring the temperature distribution, and a computer configured for modeling the thermal stresses, calculating and comparing the index with the distortion limit, and controlling the temperature distribution for an unsatisfactory index to produce the satisfactory index.

대표청구항 ▼

A method for controlling distortion of a turbine case ("case") includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index ("index

A method for controlling distortion of a turbine case ("case") includes measuring a temperature distribution for the case that includes thermal gradients. The method further includes modeling thermal stresses on the case induced by the thermal gradients, calculating an out of roundness index ("index") resulting from the thermal stresses, and comparing the index with at least one distortion limit to determine whether the case has a satisfactory or an unsatisfactory index. The temperature distribution is controlled for an unsatisfactory index to produce the satisfactory index. A system for controlling distortion of the turbine case includes a thermal measurement system, for measuring the temperature distribution, and a computer configured for modeling the thermal stresses, calculating and comparing the index with the distortion limit, and controlling the temperature distribution for an unsatisfactory index to produce the satisfactory index. o the board every part type; a step of settling an arrangement of a part cassette allocated every part mounting machine type on the basis of mounting machine construction data to create part cassette arrangement data; and a step of creating numerical control data on the basis of the respective data so that the mount time of the part from the part cassette allocated every part mounting machine onto the board is uniform. 2. The numerical control data creating method as claimed in claim 1, wherein said numerical control data creating step comprises: a step of temporarily determining the type of the part mounting machine required on the basis of the part data and the mount time data, and creating mounting machine type data; a step of calculating the total time of a working time every mounting machine type on the basis of the mounting machine type data and the mount time data, adjusting the working time of each mounting machine type within a production time of the board required, and determining the number of part mounting machines to create mounting machine construction data. cle of claim 58, further comprising a compensation circuit to control a drift caused by long-term degradation of the SGDBR laser. 62. The article of claim 58, further comprising a compensation circuit to control a drift caused by temperature. 63. The article of claim 57, further comprising using an aging model including values which correspond to the current inputs to control the SGDBR laser. 64. The article of claim 63, wherein the values of the aging model control the SGDBR laser operating power and wavelength. 65. The article of claim 63, wherein the values of the aging model are based upon an initial calibration of the SGDBR laser. 66. The article of claim 63, wherein the values of the aging model are updated based upon the comparison of the optical output power and output wavelength of the SGDBR laser to the reference output. 67. The article of claim 66, wherein the updated values correspond to a present operating power and wavelength. 68. The article of claim 66, wherein updating the values includes using a proportional adjustment based upon an initial calibration to determine the values corresponding to various operating powers and wavelengths. 69. The article of claim 57, further comprises controlling the optical output power by adjusting a single laser input independent from other laser inputs. 70. The article of claim 69, wherein the single laser input is the current input to the gain section of the SGDBR laser. 71. The article of claim 69, wherein the single laser input is a current input to an optical amplifier section of the SGDBR laser. 72. The article of claim 57, further comprises controlling the optical output wavelength by adjusting a single laser input independent from other laser inputs. 73. The article of claim 72, wherein the single laser input is the current input to the phase section of the SGDBR laser. 74. The article of claim 72, further comprising a cooler, wherein the single laser input comprises a cooler input of the cooler for regulating the temperature of the SGDBR laser. 75. The article of claim 57, further comprising controlling the optical output power by adjusting a laser input interdependently with at least one other laser input. 76. The article of claim 75, wherein the laser input is the current input to the gain section of the