Structure for disabling functions of focusing vibration isolation system of helicopter

• Main Authors: LIN CHANGLIANG, ZHAO ZEQIAN, YIN ZHONGWEI, XU SHUBO, YUAN SHENGTAO, WANG JINLIANG, XIA SHUANGMAN
• Format: Patent
• Language: Chinese; English
• Published: 20.12.2019
• Subjects: AIRCRAFT; AVIATION; COSMONAUTICS; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING

The invention belongs to the technical field of helicopter vibration control, and particularly relates to a structure for disabling functions of a focusing vibration isolation system of a helicopter.The focusing vibration isolation system comprises a main reducer, supporting rods and a bottom suspension component, wherein one end of the main reducer is arranged on a helicopter main damping platform through a supporting rod, and the other end of the main reducer is installed on the helicopter main reducer platform through the bottom suspension component; and the bottom suspension component isfixed on the helicopter main reducer platform through a retainer (3). The retainer (3) can enable the stiffness of connecting pieces at the bottom course and the lateral direction of the main reducerto be greater than twice the rigidity of an original vibration absorber (focusing vibration isolation system), and the vertical stiffness is sufficiently small compared to the supporting rod with a liquid slug vibration isolato