원문정보
초록
영어
Helicopter with the advantage of light, flexible and hovering in the air, is widely used. In both military and civilian domain, it gets more and more attention. It becomes the main subject of research in the world. In the power transmission system of helicopter, the tail rotor shaft is an important part. It is one of the key technologies to predict the dynamic characteristics of the shaft accurately for improving the overall performance of the helicopter. Based on the theory of elastic mechanics, rotor dynamics and the finite element analysis, the former main drive shaft is taken as an example. The dynamic characteristics of the transmission shaft is calculated by the multi/few degrees of freedom finite element method. The validity of the finite element method with few degrees of freedom is determined. Then the structure characteristics of the helicopter tail drive shaft are analyzed, and the dynamic characteristics of the helicopter tail rotor shaft are calculated by using the finite element method with few degrees of freedom. The research results provide the basis and guidance for the design of the helicopter tail drive system.
목차
1. Introduction
2. Dynamic Calculation Method of Helicopter Transmission Shaft
2.1 Structural Characteristics of the Front Main Drive Shaft
2.2 The Finite Element Method with Few Degrees of Freedom for Calculating the Characteristics of Front Main Drive Shaft
2.3 Finite Element Calculation of the Dynamic Characteristics of the Front DriveShaft with Few Degrees of Freedom
2.4 Comparative Analysis and Method Validation of the Dynamic Characteristics of the Front Main Drive Shaft
3. The Structural Characteristics of the Helicopter Tail Drive Shaft
4. Finite Element Modeling with Few Degrees of Freedom of the Helicopter Tail Drive Shaft
5. Dynamic Characteristic Calculation of Helicopter Tail Drive Shaft System
6. Conclusion
Acknowledgments
References