Selection methods on damping coefficient,stiffness coefficient and time step in granular distinct element method;

Test research on roll damping coefficient of anti-rolling tank testing platform;

Comment on empirical formulas for calculating marine engine damping coefficient;

Influences of Bubbly Oil on the Damping Factors of Journal Bearing;

When well fluids are laminar or turbulent,the damping factor of the different eccentric rod string was calculated respectively.

The transfer function F(s) of the second-order type-2 loop filter is given,the stability and step response of the third-order PLL then presented,followed by a derivation of a proper damping factor.

An analysis and calculation of damp coefficient in the cutting chatter;

Through simulation blade\'s damp trial in air,various order vibration model attenuation coefficients have been achieved by the method of free vibration attenuation,then various order vibration model damp ratios were obtained,and the ratio damp coefficients were deduced.

Added mass and damping coefficients of heaving twin cylinders at the free surface are calculated by the source-sink distribution method in this paper.

According to the disturbance theory, the calculating formulae of dynamic performances ofbump foil journal bearings have been deduced,including stiffness and damping coefficients.

In the paper the relationship,between maximum throw and projectile angle,under the condition of the different damping coefficients and initial velocities is reached by the method of digital calculation.