基于数字样机的雷达天线边块液压展收同步控制技术

Synchronization Control Technology of Hydraulic Folding/unfolding Movement for Antenna Side Block Based on the Digital Prototyping

针对雷达天线结构偏置、摩擦阻力差异、阵面刚度弱化等因素引起的边块展收动作不同步问题,提出了一种基于数字比例-积分-微分(PID)的主从同步位置控制策略,开发了一套基于多学科联合仿真的雷达机电液系统数字样机研发平台,依托该平台,建立了边块展收复杂机电液同步控制系统的联合仿真模型,并进行同步控制联合仿真试验和深入的系统功能品质分析,优化了系统的控制性能,仿真结果表明,左右边块展收的同步精度可控制在2 mm以内,满足雷达天线的架撤需求,为机动雷达复杂控制系统的研究提供了良好的解决途径。

Aiming at out-sync problem of folding/unfolding movement for antenna side block due to increasingly weak stiffness of antenna and structure offset and difference of friction resistance. Synchronization control strategy of master-slave mode based on digital PID is put forward. Digital prototyping research platform of radar mechanical electronic hydraulic system based on Co-simulation of multi-disciplinary is developed. According to this platform, Co-simulation model of synchronization control system for complicated mechanical electronic hydraulic system about side block folding/unfolding movement is set up, and then Co-simulation function quality is analyzed deeply, and simulation test of synchronization control is carried out. System control performance is optimized. Result of simulation shows that synchronization control precision of left and right side block folding/unfolding movement is less than 2 mm, as a result, the erecting/retracting requirement is satisfied, and the fine solving way is supplied for the study and development of complex control system for motorized radar.