Analysis of the influence of road roughness on the servo performance of remote control weapon stations
With the continuous increase in combat tasks performed by vehicle-mounted remote control weapon stations(RCWSs),the requirements for the shooting accuracy of RCWSs while moving are increasing.However,during the vehicle's travel,uneven road surfaces can introduce base disturbances to the system,considerably affecting the stability and accuracy of the weapon firing line.To deduce the mechanism by which the road roughness disturbance influences the stability performance of RCWS,this paper analyzes the composition,working principle,and key technical indicators of RCWS.First,a global dynamic model for RCWS that considers the electromechanical coupling effect of random disturbances in road roughness,internal nonlinear characteristics of the mechanism,and controllers is established.Subsequently,the effect of the road roughness disturbance on the system stability accuracy under different road levels and vehicle speeds is analyzed.Finally,a simulation testing platform is developed for analyzing random disturbance due to road roughness for verifying the effectiveness of the theoretical analysis and numerical simulation.The simulation and experimental results show that the stability error hardly changes with the change in the road surface grade under the action of a stable platform when the vehicle speed is 18 km/h.Moreover,the system stability error increases approximately when the vehicle speed is 36 and 72 km/h,increasing exponentially as the road level increases above Class E,and the higher the speed,the poorer the stability accuracy.
remote control weapon stationroad roughnesselectromechanical coupling dynamic modelstabilization precision
NETL
NSTL
万方数据
