摘要
结合钻柱振动分析的常见力学模型和分析方法,给出了ANSYS对钻柱纵向振动分析的模型假设、分析步骤和分析结果。通过谐振分析,给出了减震器刚度和安装位置对钻柱振动和钻头动载的影响。考虑系统的阻尼和钻井液浮力使计算结果更加精确;利用ANSYS APDL的对话框语句实现了人机交互,简单方便,可以用于现场计算。
The general mechanical models and analytical method of vibration of drill string is de scribed, the ABNSYS model, procedure and results are obtained. Harmonic analysis gives the influence of stiffness and installation location of bumper on vibration and bit dynamic load. Considering integral damping and buoyance of drill string,which makes result is more accurate. Utilizing dialog sentence of ANSYS APDL ,which makes it easy and can be used to well site.
出处
《石油矿场机械》
2008年第10期56-58,共3页
Oil Field Equipment
关键词
钻柱
纵向振动
共振
安装位置
ANSYS
drill string
longitudinal vibration
resonance vibration
installation location
ANSYS
