planetary-type vibration exciter; rectilinear trajectory; single-mass oscillatory system; trajectory orientation control; multibody simulation; experimental validation

Problem statement and purpose of research. This study investigates whether a planetary-type inertial exciter can synthesize rectilinear motion trajectories in a single-mass oscillatory system and how the orientation of that trajectory can be programmed mechanically. Methodology. A three-dimensional CAD assembly was created and analyzed using multibody simulations to compute planar displacements, velocities, and accelerations under representative stiffness, damping, and mass properties. The initial carrier-arm angle was used as the primary design variable.