Preliminary experimental/numerical study for the vibration annoyance control of a windshield wiper mechanical system through a Synchronized Switch Shunt Resonator (SSSR) technology

The present work focuses on the study and analysis of vibrations generated by the electrical
motor of a wiper system on its support bracket referring to an hatchback vehicle passenger
car. In the electric motor of the wiper system there can be present an imbalance transmitting
vibrations to the main body via the support bracket. In this paper, after a short resume
of available synchronized switch shunt damping methods, a preliminary experimental evalu-
ation of their potential performance on noise control of the wiper system is reported. After
preliminary experimental measurements of dynamic vibration by the use of vibrometer la-
ser both on the real hatchback car then in laboratory environment, a numerical model has
been created to evaluate deformations of the support bracket for comparison with the expe-
rimental data. This work realizes the preliminary numerical/experimental characterization
activity to set up a new application of a control system based on a semi-active technique,
called Synchronized Switch Shunt Resonator (SSSR).