直升机旋翼传动系统固有振动特性的研究

Study on Dynamic Characteristic of Transmission System for Helicopter Rotary Wings

在不同的转速条件下对旋翼传动系统的扭振响应进行了测量，从而对整个系统的固有振动特性进行了在线辨识，并与理论分析结果进行了对比。分析结果表明，带有旋翼的齿轮传动系统具有不同于其它齿轮传动系统的特性，即其动态特性随转速不同而发生变化。这为该类齿轮传动系统的动态设计及动力学分析提供了依据。

The torsional responses of rotary wings transmission system are measured experimentally and its natural dynamic characteristic is on line identified ,and moreover,the result is compared with theoretical analysis.The analytic result shows that the natural characteristic of the gear transmission system with rotary wings is different from other gear transmission system,that is to say the dynamic characteristic is changed with its rotational speed ,and the changing law has been obtained.Thus,it presents the foundatiou for dynamic design and dynamic analysis of this gear transmission system.