Gear’s normal contact stiffness played an important role in the mechanical equipment. In this paper, the M-B fractal model is modified and the contact surface coefficient is put forward to set up the fractal model, considering the influence of friction, which could be used to calculate accurately the involute arc cylindrical gears’ normal contact stiffness based on the fractal theory and Hertz ...

Forecasting short-term electrical load is very important so that the quality of power supplied can be maintained properly. The study was conducted to measure results forecasting based on parameter estimates and presentation time series data. It manage stationary data, both in terms mean variance. Data done by determining value variance through Box-Cox transformation method ACF PACF plots. This ...

In order to calculate the vehicle load model of Baijianhe Bridge, based on data health monitoring system, type, weight, wheelbase, and other information were counted processed diagraphed obtain probability density distribution. At same time, automobile parameters relative national current code finite element method are calculated. The results show that 2-axle 6-axle vehicles main types, account...