The result shows that the max speeds of hydraulic pressure change in monitoring region I,II and III are 0.048kPa/s,0.160kPa/s and 0.007kPa/s respectively,which are lower than the critical change speed,and the max hydraulic gradients are 0.717,1.052 and 0.566 respectively,which are also lower than the critical hydraulic gradient.
An investigation of the flow characteristics and radial unbalance hydraulic pressure of the compound gear pump with 3 idle gears is carried out. The conclusion is that compound gear pump with 3 idle gears can be used as emulsion pump for coal mine when z 1=3K,z 2=2K′.
Disk brake auto-drilling adopts hydraulic pressure to control skid force of disk brake directly and is easily to interface with electric signal without transitional taches, so such auto-drilling can realize remote control and automatism operation.
The simulation model demonstrates that the reflected wave along the northeastern shore of Flores Island, accompanying a high hydraulic pressure, could be the main cause of severe damage in the southern coast of Babi Island.
One finds that the material loss is proportional to the exposure time and the hydraulic pressure.
A series of tests to determine the effect that hydraulic pressure has on the output of electrical-resistance foil strain gages is described.
Response of foil strain gages to hydraulic pressure
Mechanics of sheet metal formed by hydraulic pressure into axisymmetrical shells