New Structure Design Of Magnetorheological Damper And The Control Performance

Artillery Recoil device is a buffer device which connected the artillery’s barrel and mount. In this research, magneto-rheological (MR in short) damper will be used in the Artillery Recoil device, which transfers the Artillery Recoil device into a semi-active control system. Magneto-rheological damper can offers continuous and adjustable buffer force, which can be used to change the artillery recoil resistance, based on the need to adapt to different working conditions. Because tandem damper can’t be controlled flexibility, so it can’t achieve the best buffer damping result. A new type of multi-level independent magneto-rheological damper is designed and its magnetic field distribution, response time and control algorithm are discussed in this research.Main contents of this article are as follows:(1) Dynamic mathematical model of the damper was established based on the Bingham model. A new damper design methods and design process was established on the basis of the dynamic mathematical model. Multi-objective optimization design concepts and optimization goals were Proposed, a new type of damper was designed.(2) According to the working characteristics of the multi-level independent magneto-rheological damper, electromagnetic field analysis model was established in ANSYS, and magnetic field distribution within the damping channel under various current load case were analyzed. Based on the analysis results, the magnetic field and current corresponding formula was summed up under different current load.(3) The damper coil magnetic field response model was established, and the model parameters were determined through experiments. Due to the new dampers require rapid response, the advance correction circuit was be designed which can speed up the magnetic field response time. The correctness of the correction circuit was verified in MATLAB and PROTUES by analysis and simulation.(4) Anti-recoil device control system model was established in MATLAB, as a basis for the establishment of the control model which takes initial velocity signal as acting load, equivalent hardware circuit model was established in PROTUES. PI control and fuzzy control were adopted to verify the feasibility and correctness of the control method and equivalent hardware circuits.