帶粘彈減擺器的模型旋翼設計.pdf

1、南京航空航天大學碩士學位論文帶粘彈減擺器的模型旋翼設計姓名：張體磊申請學位級別：碩士專業(yè)：飛行器設計指導教師：王華明2011-01帶粘彈減擺器的模型旋翼設計 II Abstract The dynamic stability of helicopter

2、 is one of the most outstanding problems in all aerocraft, Due to the complexity of the dynamic stability of helicopter,the theoretical computation cannot match the facts well.so it is very necessary to poceed the m

3、odel test-bed tests,rotor model played a pivotal role in this respect. The paper describes the design of rotor model basing on elastomeric lag damper mainly,and gives some necessary analysis.Firstly,we discuss the design

4、 of hub model, and investigate the parametric of hub;The second part are parametric calculation and parametric investigation of the elastomeric lag damper, which shape a utility engineering method; Thirdly, the mechanica

5、l characteristics of elastomeric lag damper was tested,which provides preparation for experimental modeling and dynamic analysis;Finaly,Carlman planar model was constructed, The “ground resonance“ of the test-bed was cal

6、culated, and the area of the “ground resonance“ was confired. Through this study,the formation of a set of model rotor was designed,some useful experimental data of viscoelastic damper were maded,a simple calculation of