摘要
针对现有某型涡桨飞机发动机的防冰系统配套压力调节器在真空环境下出口压力衰减及不能反馈开关位置信号的问题,采用真空波纹管结构对压力调节器先导阀进行结构改进,保证先导腔压力的稳定,并利用AMESim软件对压力调节器进行性能仿真,计算蝶板在正常工作压力状态下的最小开启角度,以此对微动开关进行调整,实现全部工作区下位置信号指示。试验结果表明:在真空环境下,真空波纹管结构压力调节器出口压力相对于地面环境波动较小,可满足要求;AMESim软件对蝶板开启角度的计算结果较为可靠,为开关状态信号的设置提供了有力支撑。
In the vacuum environment,the pressure regulator outlet pressure of the turboprop aircraft engine anti-icing system decays and the switch position signal cannot be fed back.The vacuum bellows structure was used to improve the pilot valve structure of the pressure regulator to ensure the stability of the pilot chamber pressure.The AMESim software was used to simulate the performance of the pressure regulator.The minimum opening angle of the butterfly plate was calculated under normal working pressure,so as to adjust the micro switch and realize the position signal indication in all working areas.The test results show that:in vacuum environment,the outlet pressure fluctuation of vacuum bellows structure pressure regulator is small relative to the ground environment,which can meet the requirements;the calculation results of the butterfly plate opening angle are more reliable through the AMESim software,which provides a strong support for the setting of the switch status signal.
作者
侯松峰
李志珠
贾远成
HOU Songfeng;LI Zhizhu;JIA Yuancheng(AVIC Xinxiang Aviation Group Civil R&D Center,Xinxiang Henan 453019,China)
出处
《机床与液压》
北大核心
2024年第8期174-178,共5页
Machine Tool & Hydraulics
关键词
防冰系统
压力调节器
微动开关
性能仿真
anti-icing system
pressure regulator
micro switch
performance simulation
