The Overall Design And Structure Optimization Of Low Speed And Large Inertia Rotation Simulation Equipment

Shipborne radar is the most core source of information for ship offensive and defensive command.Its performance indicators are closely related to ship orientation and motion parameters.In order to realistically simulate the orientation and rotation of large ship bridges,this article uses a land-mounted low-speed large-inertia rotation equipment to simulate full-scale real bridges to achieve the purpose of verifying the working performance of shipborne radars in all weather.The main body of the simulation equipment adopts a steel plate welding structure,and the underside adopts air bearing and steel wheel mixed support,and electric motor drives the steel wheel as power to realize the turning movement of the equipment and radar.Firstly,the overall mechanical model of the simulation equipment was established,and the overall structural scheme was initially confirmed.By analyzing the static and rotating state and the force under the wind load condition,the main parameters of the overall device are determined,and t hen through the calculation and comparison of the driving power,the air cushion-steel wheel hybrid support scheme is selected to obtain multiple sets of air cushion-steel wheel support load distribution range.Secondly,the main structure of the equipment was modeled and analyzed,and based on the analysis results of various working conditions and their influence on the experiment facilities,the topology structure was optimized,and integrated with the goals of light weight,inertia reduction,and anti-overturning.Analysis and optimization,and put local strengthening structures at weak points of the structuresThen,the air cushion and steel wheel mixed support connection parts of the equipment were analyzed,and the layout and structure of the support were optimized,taking into account the effects of static,dynamic,eccentric and wind loads.Parametric modeling and structural optimization of the wheel shell structure and the air cushion support structure were carried out.Finally,the driving system of the simulation equipment is analyzed,the transmission schemes of the three-phase asynchronous motor and the permanent magnet synchronous wheel-side motor are compared,and the corresponding transmission devices are designed.