Abstract:

Aiming at load simulating problem of the thrust vector control (TVC) system in launch vehi- cles, a new load simulator structure and its mathematical model are presented. The influence of main pa- rameters on system爷s dynamic performance is analyzed by simulation. Building a prototype experiment system, multiple DOF load property is showed in a sweep frequency test. Simulation and experiment veri- fy the feasibility of this load simulator structure, which lay a foundation for optimizing design parameters of the thrust vector servo mechanism and developing load simulators of heavy launch vehicles爷servo sys- tems.

Key words: experimental technology of aerocraft, thrust vector, multiple-DOF, dynamic characteristic, load simulation