Abstract:
A nonlinear mathematical model for the shock absorber in TJ7100
is developed. The oil compressibility and the entrapped gas in
the oil are considered in the model. As a result, the hysteresis
in the force-velocity diagram is included. The results of
computer simulation and the experiment are basically identical.
The MATLAB/SIMULINK is used for the development of the
simulation software. It is found that the pressure inside the
cylinder is high if the inputs of velocity or displacement are
big by simulation. This is certainly one of the main reasons for
which the leak of appeared between the rod and the seal of the
shock absorbers for a relatively short time in China.
Key words: Shock
absorber Nonlinear mathematical model Simulation
Experiment
*
This project
is supported by The State Key Laboratory of Fluid Power Transmission and
Control. Manuscript received on
May 19, 1998; revised manuscript July 15, 1998
|