Research on Dynamic Control Model of Multi-Scenario Synchronization in Aircraft Suspension Lifting System

The airborne suspension lifting system is a typical rigid-flexible coupling system. The coupling effect is easily generated by the excitation of the rigid transmission mechanism on the flexible cable composed of steel wire ropes. Meanwhile, the multi-operating conditions and unbalanced characteristics of the load further exacerbate the complexity of synchronous control. In this paper, aiming at the synchronous control problem under multiple operating conditions, a multi-body dynamics model of the airborne suspension lifting system based on the generalized Hamiltonian principle is established. Differential equations of the tension of steel wire ropes are proposed, and dynamic analysis under multiple operating conditions is conducted in combination with experimental data. The influence of unbalanced loads on the tension of the cable is studied, and the variation law of cable tension response during the lifting process of the system is obtained, providing data support and theoretical basis for the design of synchronous control of the lifting system.