The friction and vibration coupling effect of disc brake was investigated using order analysis and wavelet transformation of brake torque variation and brake pressure variation,which were measured from 9 kinds of disc brakes with various disc thickness variation(DTV) and surface runout(SRO) combination under four brake pressure levels on a brake dynamometer test rig.

Chaotic analysis of pressure fluctuations in impinging region of SCISR;

Simulation experiment on oil recovery mechanism in pressure fluctuation;

Hurst's analysis of pressure fluctuation in gas-solid spouted beds;

Periodicity analysis of pressure fluctuations in the impinging entrained-flow gasifier;

Characteristics of differential pressure fluctuations in vertical upward gas liquid solid three phase flow under the condition of normal temperature and normal pressure were studied by using the signal process techniques.

Many authors randomly chose different compact support Daubechies wavelet to analyze pressure fluctuations in fluidized beds.

In this paper,an accurate model predicting steady surge pressure resulting from running or pulling a pipe in a vertical wellbore has been developed on thebasis of Herschel-Bulkle.

5 mm casing,formation fracture pressure and well bore surge pressure in horizental wellbore designs are studied,and a conclusion is drawn that the key factor of horizental wellbore designs is to determinate the set depth of φ244.

Calculation method of surge pressure caused by mud viscosity during drilling pipes or casings moving through Cas.

A Prediction Model for Quasi-Momentary State Well Fluctuation Pressure;

The relation among impinging velocity,micromixing and pressure wave was analyzed through two c.

In the paper,the motion images of molten stannum in water and the pressure wave were obtained in different conditions,which are different temperatures of the molten stannum,different temperatures of the water and different diameters of the molten stannum,by using the high-speed camcorder and the pressure sensor.