STOVL推进系统模式转换过程建模及分析  

Modeling and analysis of mode conversion process for STOVL propulsion system

作　　者：江天牧 张晓博[1] 王占学[1] JIANG Tianmu;ZHANG Xiaobo;WANG Zhanxue(School of Power and Energy,Northwestern Polytechnical University,Xi’an 710129,China)

机构地区：[1]西北工业大学动力与能源学院,西安710129

出　　处：《航空动力学报》2023年第6期1403-1413,共11页Journal of Aerospace Power

基　　金：国家自然科学基金(52076180);国家科技重大专项(J2019-Ⅰ-0021-0020)。

摘　　要：在通过对离合器组件的动力学分析建立离合器动态性能计算模型的基础上,根据短距起飞/垂直降落(STOVL)推进系统各部件在不同工作状态下的耦合关系,建立了STOVL推进系统模式转换过程的共同工作方程组,即其动态性能仿真模型,并提出了STOVL推进系统短垂模式与常规模式相互转换的控制策略,对比了不同离合器接合速度下模式转换过程中的性能参数特点。结果表明:建立的仿真模型在模式转换过程中与国外文献数据相比最大误差为3.76%;提出的控制策略可保证模式转换过程中STOVL推进系统无超温、超转现象,且喘振裕度变化在0.1%以内;模式转换过程中离合器接合时间越短,其瞬时摩擦产热量越大,但总产热量越小。Based on the clutch dynamic performance calculation model established by the dynamic analysis of the clutch components,the co-working equations of STOVL propulsion system mode conversion process,namely its dynamic performance simulation model,were set up,according to the coupling relationship of short takeoff and vertical landing(STOVL)propulsion system components in different working states.The control strategies for the conversion between STOVL mode and conventional mode were proposed,and the characteristics of the performance parameters during the conversion process under different clutch engagement speeds were compared.Results showed that the maximum error of the simulation model was 3.76% compared with the foreign research data in the process of mode conversion.In the process of mode conversion,the proposed control strategy can ensure that there was no overlimit of temperature and speed of STOVL propulsion system,and the surge margin change was less than 0.1%.In the process of mode conversion,the shorter clutch engagement time of mode conversion process,the greater instantaneous frictional heat generation,but the lower total heat generation.

关 键 词：短距起飞/垂直降落(STOVL) 离合器 升力风扇 动态性能 模式转换 

分 类 号：V235.3[航空宇航科学与技术—航空宇航推进理论与工程]