掘进机随机振动信号同步采集误差补偿方法  

Error Compensation Method for Synchronous Acquisition of Random Vibration Signals of Tunneling Machines

作　　者：蔡玉杰 杨伦 刘涛 CAI Yu-jie;YANG Lun;LIU Tao(School of Electronic Information&Intelligent Manufacturing,Sias University,He’nan Zhengzhou 451150,China;School of Electronic Information and Automation,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]郑州西亚斯学院电信与智能制造学院,河南郑州451100 [2]中国民航大学电子信息与自动化学院,天津300300

出　　处：《机械设计与制造》2024年第1期274-279,共6页Machinery Design & Manufacture

基　　金：2022年度河南省重点研发与推广专项(科技攻关)项目—低成本MEMS-SINS/GNSS组合导航关键技术研究(222102210194)。

摘　　要：掘进机工作环境较为恶劣,振动信号中掺杂大量干扰信号,信号采集过程中存在随机迟滞现象,导致采集的掘进机振动信号误差较大,为此提出一种掘进机随机振动信号同步采集误差补偿方法。将掘进机看作多自由度系统,建立设备的运动学模型;结合掘进机运动学特征,利用虚拟激励法合理构造随机激励函数;在建立的随机激励下,选择传感器类型、安装方式和参数,根据正弦稳态校准方法需求设计校准系统,提高传感器敏感性,预测传感器输出延时,计算每次测量的同步误差和误差补偿值,经过补偿,确保多传感器实现振动信号误差的同步动态补偿。实验结果证明,所提方法减少了随机迟滞,采集到的信号波形与实际波形相符,有效实现了对采集信号的误差补偿。The working environment of roadheader is relatively harsh,with a large amount of interference signals mixed in the vi-bration signal.There is a random hysteresis phenomenon in the signal acquisition process,resulting in a large error in the col-lected roadheader vibration signal.Therefore,a method for compensating roadheader vibration signal error based on multi-sensor data is proposed.Considering the roadheader as a multi degree of freedom system,the kinematic model of the equipment is established;Combining the kinematic characteristics of roadheader,a random excitation function is reasonably constructed us-ing the virtual excitation method;Under the established random excitation,select the sensor type,installation method,and pa-rameters,and design a calibration system based on the requirements of the sinusoidal steady-state calibration method.Improve sensor sensitivity,predict sensor output delay,calculate the synchronization error and error compensation value for each measure-ment.After compensation,ensure that multiple sensors achieve synchronous dynamic compensation for vibration signal errors.Ex-perimental results show that the proposed method reduces random hysteresis,and the collected signal waveform matches the ac-tual waveform,effectively achieving error compensation for the collected signal.

关 键 词：掘进机 随机振动信号 多传感器 随机激励函数 同步误差补偿 

分 类 号：TH16[机械工程—机械制造及自动化] TP274[自动化与计算机技术—检测技术与自动化装置]