小型无人直升机活塞式发动机建模技术  

Modeling Technique of Piston Engine System for Small Unmanned Helicopter

作　　者：徐志鑫[1] 曾国贵[2] 严峰[2] 祖家奎[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016 [2]中国直升机设计研究所无人机部,江西景德镇333000

出　　处：《兵工自动化》2012年第1期4-7,共4页Ordnance Industry Automation

基　　金：飞行器自主控制技术教育部工程研究中心资助(南京航空航天大学)

摘　　要：针对传统的无人直升机发动机研究方法存在的问题,提出一种新的活塞式航空发动机系统建模方案。结合旋翼系统的特性,利用叶素理论对旋翼桨叶进行分析,分别建立了发动机功率特性模型和旋翼的负载模型,根据发动机的动力学特性得到发动机的转速,并通过Matlab仿真和试车台试验进行验证。仿真试验结果证明:该模型合理可行,能够满足无人直升机的仿真控制要求。For the problems of traditional research methods of unmanned helicopter engine, a new modeling method of piston aircraft engine system was proposed. Combining with the characteristics of rotor system, blade element theory is applied to analyze rotor blades. Then engine power characteristics model and rotor load model were established. According to the dynamics of engine, engine speed is calculated. Finally, Matlab simulation and ground test stand testing were carried out to verify the control performance. Simulation results show that the model is reasonable and feasible and meets the control requirements of unmanned helicopter simulation.

关 键 词：无人直升机 活塞发动机 建模 旋翼 负载 

分 类 号：TJ02[兵器科学与技术—兵器发射理论与技术]