Abstract:
A new typed hydraulic system of electro-hydraulic hammer is
researched and developed. By means of power bond graphs the
modeling and simulation to the dynamic characteristics of the
new hydraulic system are performed. The experimental research
which is emphasized on the blowing stroke is also performed. It
is proved from the result of simulation and experiment that this
new hydraulic system possesses such advantages as simplification
of structure, flexibleness of operation and reliability of
working. Especially it possesses better dynamic characteristics.
Key words: Electro-hydraulic
hammer Hydraulic system Dynamic characteristics Simulation
*
This project
is supported by Provincial Natural Science Foundation of Shanxi (No.19991062).
Manuscript received on May 11, 2000; revised manuscript September 25, 2000
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