Modeling and simulation of electromechanical co-simulation for airborne gravimeter stable platform

The Airborne Gravimeter is a precision instrument for measure of the earth's gravity, in order to make the gravimeter isolate all kinds of disturbances in flight, and always keep an upright and stable state. In this paper, a high accuracy Airborne Gravimeter inertial stable platform was designed for this purpose. Also in order to shorten the design cycle of stable platform and ensure the performance of the structural design of stable platform system can satisfy the design requirements, the electromechanical co-simulation was built of high accuracy Airborne Gravimeter stable platform in this paper, and this electromechanical co-simulation model based on Adams and MATLAB. The time domain and frequency domain characteristics of the electromechanical co-simulation model was simulated and analyzed, then the simulation results and experimental results were compared. The results show that under the conditions of open loop, the simulation results of time domain and frequency domain approximately agree with experimental results. This result verifies the correctness and effectiveness of the simulation model. So that this model can be used in the stage of structural design to predict characteristics of the stable platform and then improve design efficiency.