半物理模拟试验转速响应时间异常分析  

Abnormity analysis of speed response time in the semi-physical simulation test

作　　者：陈鹏飞 仇小杰 CHEN Pengfei;QIU Xiaojie(AECC Aero Engine Control System Institute,Wuxi 214063,China)

机构地区：[1]中国航发控制系统研究所,江苏无锡214063

出　　处：《燃气涡轮试验与研究》2024年第6期48-53,共6页Gas Turbine Experiment and Research

摘　　要：针对航空涡扇发动机控制系统在不同半物理模拟试验器上发动机转速响应时间不一致,且同一个试验器不同采集设备的发动机转速响应时间不一致的问题,以控制系统半物理模拟试验基本组成和工作原理为基础,开展了发动机转速控制回路机理分析。通过建立覆盖转速控制回路的故障树,综合考虑各个环节发生故障的概率,以及排故的难易程度,定位了主要影响因素,制定了合理有效的排故方案,并通过了试验验证。结果表明:模型计算机多媒体定时器不准确,影响了模型机软件的运行,导致发动机转速响应时间异常,通过有效措施进行了验证,解决了发动机转速响应时间不一致问题。排故经验为后续半物理模拟试验设备的要求提供了借鉴意义。For a type of aircraft turbofan engine control system,aiming at problems of inconsistency of the engine speed response time in different semi-physical simulation testers,and that of different devices in the same tester,the mechanism analysis of engine speed control loop was carried out,based on the basic composition and working principle of the semi-physical simulation test of the control system.The fault tree covering the speed control loop was established;the fault probability of each link and the difficulty of troubleshooting were considered comprehensively;the main influencing factors are located,and a reasonable and effective troubleshooting scheme was formulated.The results show that the model computer multimedia timer is not accurate,which affects the operation of the model computer software and causes abnormality in the engine speed response time.The problem of inconsistent response time of engine speed was solved by verifying effective measures.The summary of the troubleshooting experience provides reference for the subsequent semi-physical simulation test equipment requirements.

关 键 词：航空发动机 控制系统 半物理模拟试验 转速响应时间 多媒体定时器 模型计算机 

分 类 号：V233.7[航空宇航科学与技术—航空宇航推进理论与工程] V263.6