可变几何通道控制执行装置动态特性研究

摘要

可变几何通道控制执行装置的动态特性，直接影响到航空发动机的进气和排气性能。以一几何通道控制执行装置为研究对象，阐述了其基本结构和工作原理；建立了可变几何通道控制系统数学模型，并运用AMESim建立其仿真模型，重点分析了油嘴Ⅰ直径、油嘴Ⅱ直径、作动筒活塞杆直径、作动筒活塞直径、负载等参数，对可变几何通道控制执行装置动态特性的影响，为同类产品的设计、改进、改型和性能优化提供了理论依据。%The dynamic characteristics of variable geometry channel control executive device directly af-fect the intake and exhaust performance of aero-engine. Taking a geometry channel control executive de-vice as the research object, the basic structure and working principle were elaborated; the mathematical modeling and simulation model were established by using the AMESim. The design parameter influences of nozzleⅠdiameter, nozzleⅡdiameter, actuator piston rod diameter, actuator piston diameter and load on vari-able geometry channel control executive device dynamic characteristics were analyzed to provide theoreti-cal basis for same products design, improvement, retrofit and performance optimization.