รายละเอียดผลงาน

This paper conducts a comparative analysis of 9-degree-of-freedom (9-DOF) and 11-degree-of-freedom (11-DOF) multi-body dynamic models for simulating motorcycle-rider vibrations, rigorously validated against experimental data. The 11-DOF model, an advanced version of the 9-DOF, integrates handlebar excitation to more effectively capture hand-arm vibrations. Both models were evaluated using metrics such as Seat-to-Head Transmissibility, Apparent Mass, and Driving-Point Mechanical Impedance, over a specified frequency range, with performance quantified by Goodness-of-Fit (GOF) values. Surprisingly, the simpler 9-DOF model consistently outperformed the more complex 11-DOF counterpart, achieving higher GOF values. Despite theoretical support for including handlebar excitation in the 11-DOF mode