文献一：Nonlinear Flexural-Flexural-Torsional Dynamics of Inextensional Beams. I. Equations of Motion  http://www.informaworld.com/smpp/content~db=all~content=a776383994?words=nonlinear,flexural-flexural-torsional,dynamics,inextensional,beams
文献二：Nonlinear Flexural-Flexural-Torsional Dynamics of Inextensional Beams. II. Forced Motions  
http://www.informaworld.com/smpp/content~db=all~content=a776383994?words=nonlinear,flexural-flexural-torsional,dynamics,inextensional,beams