METHOD AND DEVICE FOR DAMPING A ROLL HOUSING
The invention relates to a method and device for damping a roll housing for reducing sensitivity to vibrations. According to the inventive method, the damping ensues by means of a vibrating mass (8) situated above each post (2) forming the roll housing (1), and the vibrational energy is dissipated in a cushion (83) of an incompressible fluid constituting a direct link between each post (2) and the vibrating mass (8). According to the invention, the fluid cushion is maintained with permanent circulation by supply means (91) and by evacuation means (92) of an adjustable caliber. The frequency response of the system and its damping coefficient are set by the dimensioning of the vibrating mass (8), the controlling of the thickness (h) of the fluid cushion and its flow-rate through the calibrated orifice (92).