Wide-band flexible floating raft vibration isolation system and design method thereof

• Main Authors: ZHANG DUJIANG, YANG JINGYU, CUI XUANMING, LIU ZHIQI
• Format: Patent
• Language: Chinese; English
• Published: 27.04.2016
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MARINE PROPULSION OR STEERING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

The invention provides a wide-band flexible floating raft vibration isolation system and a design method thereof. Parts are fixedly connected between a raft frame on the upper side and a fixing bottom plate on the lower side. Springs on the four corners and springs on the side faces are fixedly supported by ejector rods on the four corners and ejector rods on the side faces, and movable supporting springs are located in the middle. According to the moving mechanism of the system, the upper ends of the movable supporting springs are embedded into top end sliding grooves through top end sliding blocks, the lower ends of the movable supporting springs are connected with motor-reducer combined bodies and bottom end sliding blocks, and screw rods penetrate through round holes in the bottom end sliding blocks and are connected to stepping motors. During a test, a vibrational excitation response is exerted on the raft frame, the optimal design of the floating raft vibration isolation system is achieved by adjusting