ZHU XIFENG, FU WENBIN, MA SHUO, et al. EQUIVALENT CIRCUIT SIMULATION OF A TWO-DEGREE-OF-FREEDOM ELASTIC COLLISION VIBRATION SYSTEM WITH GAPS. [J]. Journal of mechanical strength, 2025, 47(1): 31-41.
DOI:
ZHU XIFENG, FU WENBIN, MA SHUO, et al. EQUIVALENT CIRCUIT SIMULATION OF A TWO-DEGREE-OF-FREEDOM ELASTIC COLLISION VIBRATION SYSTEM WITH GAPS. [J]. Journal of mechanical strength, 2025, 47(1): 31-41. DOI: 10.16579/j.issn.1001.9669.2025.01.004.
EQUIVALENT CIRCUIT SIMULATION OF A TWO-DEGREE-OF-FREEDOM ELASTIC COLLISION VIBRATION SYSTEM WITH GAPS
A two-degree-of-freedom collision system with gap and elastic constraint was used as the research object
and the regional distribution and transitions of the periodic motion of the system under low frequency conditions were studied b
y numerical simulation.It was obtained that with the decrease of excitation frequency
the
p
/1 periodic motion occurs with grazing bifurcation transitions to (
p
+1)/1 periodic motion.When the number of collisions was large enough
the Chattering-impact characteristics were presented.Then a circuit model that was completely equivalent to the collision system was established and simulation experiments were carried out.The results show that the results generated by establishing the equivalent circuit are consistent with those generated by numerical simulations
and the equivalent circuit is more efficient in simulation experiments
which can realize fast modal transitions and parameter adjustments,making it more convenient and providing a research method for the study of nonlinear dynamics.
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