摘要
应用有限元方法将钻挖系统划分为若干单元,通过拉格朗日方程获得了钻挖系统的动力学方程,并得到钻具中心在地下的运动轨迹:在ADAMS/Vibration中建立了钻挖系统的振动仿真模型,获得了钻挖系统的固有频率和振型,分析了钻挖过程的动态特征,对避免共振、提高成孔质量具有一定的指导意义。
The Finite Element Method is applied to divide one beam into some units,the kinetic equation of thedrilling system is established according to the Lagrange equation, and the path motion of the center of the drill bit underground is obtained. At the same time, the vibration model of the drilling system in ADAMS/Vibration is built, natural frequency and mode shape are gained. It is useful to avoid resonance and improve the quality of hole.
出处
《筑路机械与施工机械化》
北大核心
2008年第3期70-72,共3页
Road Machinery & Construction Mechanization
