Due to the unreasonable designed structure of the Φ550 rolling mill bottom roll adjusting device and its severe working environment, the phenomena of blocking and drive failure occur frequently.

Robustness analysis and parameter adjustment for DMC;

The signals of underground pressure and temperature in sensor can be transferred to the parameter adjustment module on the ground numerical contr.

Afterwards,it designs the unit selection algorithm and employs the parameter adjustment algorithm to adjust parameters like length,pitch frequency and short-term energy in the speech signal.

The computer method to calculate adjustment parameters of disk milling cutter for machining the spiral groove is studied.

Under enponential assumption,adjustment parameter is defined,and its best value is calculated which minionizes the fotal quality loss.

Under Weibull population, 4 steps are given to decrease the total quality loss, and adjustment parameter is also defined and used.

During designing,it is necessary to divide the program to five model blocks,they are initialization model block,frequency count model block,period count model block,parameter tuning model block and display model block.