Nonlinear natural frequencies of rotating composite thin-walled beam with geometrical nonlinear

摘要：

　　The nonlinear governing equations of motion for the rotating composite thin-walled beam are derived using Hamiltons energy principle and variational-asymptotical method (VAM)on the basis of von Karmans assumption.The nonlinear vibration of the beam is studied using Galerkin method and harmonic balance method.The large amplitude free vibration of the beam can be expressed as a nonlinear eigenvalue problem and solved using an iterative solution procedure.Numerical results are obtained for Circumferentially Uniform Stiffness (CUS)laminated composite configuration thin-walled beam.The study exhibit the effect of the fiber orientation and rotating speed on nonlinear natural frequency vs.amplitude curves.The developed model can be capable of describing nonlinear free vibration behaviors of rotating composite thin-walled beam with large deformations.

关键词： Nonlinear vibration geometrically nonlinear composite thin-walled beam rotating beam harmonic balance method

作者: Ren Yongsheng Sun Shuangshuang Zhang Chunjing

作者单位: College of Mechanical and Electronic Eng., Shandong Univ.of Sci.& Tech., Qingdao 266590,China College of Electro-mechanical Eng., Qingdao Univ.of Sci.& Tech., Qingdao 266061, China

会议类型: 国际会议

会议名称: 2nd International Conference on Advanced Materials and Engineering Materials(第二届先进材料与工程材料国际会议)(ICAMEM2012)

会议地点: 北京

会议语种:英文

页码: 779-782

在线出版日期: 2012-12-16（万方平台首次上网日期，不代表论文的发表时间）