二冲程航空活塞发动机增压匹配研究和优化

doi:10.3969/j.issn.1000-1093.2020.01.016

兵工学报 ›› 2020, Vol. 41 ›› Issue (1): 135-142.doi: 10.3969/j.issn.1000-1093.2020.01.016

二冲程航空活塞发动机增压匹配研究和优化

张朔¹，赵振峰¹，董雪飞²，叶莹¹

（1.北京理工大学机械与车辆学院，北京 100081；2.北京航天无人机系统工程研究所，北京 100094）

收稿日期:2019-02-14 修回日期:2019-02-14 上线日期:2020-02-22
作者简介:张朔（1995—），男，博士研究生。E-mail: findzhangshuo@163.com
基金资助:
装备预先研究项目(201720301146)

Research and Optimization of Turbocharging Matching for Two-stroke Aero Engine

ZHANG Shuo¹， ZHAO Zhenfeng¹， DONG Xuefei²， YE Ying¹

(1.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China；2.Beijing Aerospace UAV System Engineering Research Institute, Beijing 100094, China)

Received:2019-02-14 Revised:2019-02-14 Online:2020-02-22

摘要/Abstract

摘要： 针对二冲程航空活塞发动机高空功率下降问题开展增压匹配的相关研究。建立二冲程非增压航空活塞发动机的一维仿真模型，并对仿真模型进行了实验验证；以校验后的非增压发动机模型为基础匹配了增压器，建立增压发动机模型。通过废气涡轮增压匹配进行不同海拔高度条件下的匹配计算；研究高空环境下二冲程增压发动机的工作情况，提出利用排气系统结构优化拓宽增压器的工作范围，利用废气旁通阀控制增压程度方法对增压系统进行优化。获得了在7 000 m海拔高度能够实现76%功率恢复的增压型二冲程航空活塞发动机，满足某无人机平台飞行任务剖面对发动机的需求。

关键词: 航空活塞发动机, 二冲程, 增压匹配, 无人机, 涡轮增压, 高空功率恢复

Abstract: The turbocharging matching is researched for the problem of power reduction of two-stroke aero engines at high-altitudes. An one-dimensional simulation model of a natural aspirated two-stroke aero engine was established and experimentally verified. Based on the verified model, a turbocharger is matched, and a turbocharged engine model is established. The structure optimizing and control strategies of bypass valve in exhaust system are proposed to broaden the working range of turbocharger through the calculation and analysis of turbocharging matching at variable altitudes. A two-stroke turbocharged aero engine with 76% power recovery at 7 000 m altitude was designed, which can meet the demand of an unmanned aerial vehicle’s mission profile. Key

Key words: aerialpistonengine, two-stroke, turbochargermatching, unmannedaerialvehicle, highaltitudepowerrecovery

中图分类号:

张朔，赵振峰，董雪飞，叶莹. 二冲程航空活塞发动机增压匹配研究和优化[J]. 兵工学报, 2020, 41(1): 135-142.

ZHANG Shuo， ZHAO Zhenfeng， DONG Xuefei， YE Ying. Research and Optimization of Turbocharging Matching for Two-stroke Aero Engine[J]. Acta Armamentarii, 2020, 41(1): 135-142.

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二冲程航空活塞发动机增压匹配研究和优化

Research and Optimization of Turbocharging Matching for Two-stroke Aero Engine

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