drill string dynamics 钻柱动力学
drilling string dynamics 钻柱动力学
striking dynamics at string 击弦力度
dynamics of rotor string 转子系统动力学
Describes drill string dynamics system models and numerical algorithms. And describes the details of NEWMARK method and HHT method.
介绍了钻柱系统动力学模型以及其数值算法，对直接积分法中的NEWMARK法和HHT法的计算过程进行了详细的阐述。
A problem about tubing string vibration caused by the fluid unsteady flow inside tubing string is studied from the Angle of solid liquid coupling vibration in dynamics.
文章从动力学中固液耦合振动的角度出发，研究了油管柱内流体不稳定流动引起的油管柱振动问题。
The quark-fragment effects in the source term are described by using the phenomenal SU(3 ) string model with a flavor dynamics.
源项中的夸克碎块效应则是通过唯象SU（3）弦模型味动力学进行描写的。
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