This paper is a continuation of a paper [1] previously published. In this paper, the experimental results for the 3-mass system as defined in Part I are presented. Physical simulation very close to an ideal limiting case where the driven pinion is linked to the output pulley with a very low stiffness shaft was performed. The nonlinear responses of a system with backlash and subject to impact and/or displacement excitation were obtained. The presence of multiple critical speeds for a single degree of freedom system under impact and/or displacement excitation has been analytically explained and experimentally confirmed. Computer solutions based on the piecewise linear iteration technique as outlined in Part 1 have achieved a considerable degree of success. Computer predictions agree well with actual responses in various speed ranges despite a series of bold assumptions that were made to simplify the numerical process.

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