Longitudinal and transverse multi-mode vibration control device and method for variable-speed propeller shaft system

• Main Authors: HUA HONGXING, LI FENG, SU ZHIWEI, HUANG XIUCHANG
• Format: Patent
• Language: Chinese; English
• Published: 17.03.2020
• Subjects: CONTROLLING; MARINE PROPULSION OR STEERING; PERFORMING OPERATIONS; PHYSICS; REGULATING; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TRANSPORTING

The invention provides a longitudinal and transverse multi-mode vibration control device and method for a variable-speed propeller shaft system. The device comprises a power supply device static end (1), a power supply device rotating end (2), a piezoelectric shunt circuit (3) and a switching/frequency sweeping circuit (4), wherein the power supply device rotating end and the piezoelectric shunt circuit are connected with a rotating shaft of the variable-speed propeller shaft system and rotate synchronously along with the rotating shaft, the power supply device static end is arranged on an outer side of the power supply device rotating end, the switching/frequency sweeping circuit is electrically connected with the piezoelectric shunt circuit, the piezoelectric shunt circuit is electrically connected with the power supply device rotating end, and the switching/frequency sweeping circuit controls values of inductance and resistance in the piezoelectric shunt circuit to periodically change according to a preset