Dynamical Analysis on a Mass At The Tip of a Flexible Rod on a Rotating Base
A dynamical analysis on a mass fixed at the tip of a massless flexible rod mounting on a rotating rigid body is presented in which the motion of the mass is kept in the plane of rotation as small deformation of the rod is assumed. For the rigid body undergoing a constant angular velocity the centrifugal forces and Coriolis force on the mass are considered. There exist two dynamic frequencies in which the first order dynamic frequency decreases with rotational velocity up to zero that is associated with a limit rotational velocity of the system. The motion trajectories of the mass in the rotational plane at different rotational velocities exhibit multiple traces with respect to the conventional line trace and may be split into the non-eccentric and eccentric portions. With a view on the change of amplitudes a critical rotational velocity is discussed.
Rotation Coriolis Force Dynamic Frequency Motion Trajectory Eccentric
Zhan Fang Liu Xiao Wei Guo
Chongqing University, College of Resources and Environmental Science,Department of Engineering Mechanics, Chongqing 400030,PR China
国际会议
上海
英文
536-540
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）