Multi-Spool Bearing

Multi-Spool Bearings restrict the relative lateral motion between the two coaxial rotors running at same or different speeds. The model for these bearings is based on equivalent stiffness and damping coefficients for the relative lateral and relative tilt motion between the rotors. There is also an option to make the connections between the two rotors rigid. For a rigid connection, both the rotors move and/or tilt together without any relative motion. To make either the lateral displacement or tilting free between the rotors, you can use a zero value in the corresponding stiffness and damping fields.