文档介绍：南京航空航天大学
硕士学位论文
直升机旋翼/发动机一体化建模研究
姓名:张海涛
申请学位级别:硕士
专业:飞行器设计
指导教师:陈仁良
20090301
南京航空航天大学硕士学位论文
摘要
随着新一代直升机的各种性能不断提高,对直升机机动性的要求越来越高,直升机各子系
统的复杂程度大大增加,子系统间的耦合作用也大大加强,传统的将各子系统分开独立设计的
方法已不能满足要求,解决办法是采用一体化设计方法。发动机从动力涡轮输出功率,经过传
动机构带动旋翼等直升机部件。旋翼既是发动机的负载,又是使直升机产生升力的重要部件,
可见直升机旋翼/发动机对整个直升机性能的影响至关重要。
本文建立了直升机旋翼/发动机一体化仿真模型。首先,根据叶素理论建立了直升机旋翼的
准定常、非线性气动力数学模型。然后,采用部件法,建立了涡轴发动机数学模型,并利用小
扰动原理,建立该型发动机线性的状态空间模型。最后,建立了直升机旋翼/发动机一体化仿真
模型。
为了检验直升机旋翼/发动机一体化仿真模型的可信度,本文将理论计算结果与国外试飞实
测结果进行了对比,结果表明本文的直升机旋翼/发动机一体化仿真模型合理可信。

关键词:直升机,旋翼,涡轴发动机,数学模型,建模
i
直升机旋翼/发动机一体化建模研究
Abstract
With the performance improvement of new generation of helicopters, the demands of helicopter’s
maneuverability e higher and higher, and plexity and the coupling dynamic effects of
helicopter’s subsystems also increase. The traditional design methods of individual subsystems have
been unable to meet the demand, and the only solution is the integratd design methods. The rotor is
driven by a shaft projecting from the drive train which connects to the turboshaft engine’s power
turbine, and the rotor is not only the load of the turboshaft engine, but also the ponent
of generating the lift of the helicopter and controlling the flight velocity and attitude, so the helicopter
rotor/engine system has the important influence on the whole helicopter performance.
In this paper, a helicopter rotor/engine integrated model is set up. First, this dissertation build the
helicopter main rotor mathematical model based on the Blade-Element Method. And then the
turboshaft engine mathematical model is set up based ponent-Based Method, and the
linearized state space model is set up adopting small perturbation. Finally, the helicopter rotor/engine
integrated model is set up.
In order to verify the credibility of the integrated model, this article contrast the calculation result
with the test flight data. The results show that the helicopter rotor/engine integrated model of