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。
In the program the large deformation are considered by using Total Lagrange described method and time discreteness with Newmark method.
程序中考虑了结构的大变形，采用全拉格朗日描述法，时间离散使用了纽马克法。
Newmark contends that the choice of translation method is determined by three factors: type of text, nature of the readership and purpose of the translation.
纽马克认为，采取何种翻译方法取决于三个因素：文本类型、读者身份和翻译目的。
Precise time integration method is applied in short-leg shear wall, and a new scheme is put forward which is referred as Newmark-precision time history method.
在动力分析方法方面，本文将精细积分法应用到短肢剪力墙结构中，提出了纽马克—精细时程法。
Then, use the direct integral calculus method of NEWMARK to solve solution, and get each node and element's displacement and stress solution vs. time.
然后，用NEWMARK直接积分法进行求解，得到各节点和单元的位移、应力的时程解。
Dynamic response of layered pavements subjected to dynamic loads is analyzed by using the three dimensional(3D) finite element method in conjunction with NEWMARK integration scheme.
应用三维有限元动力学的基本方法 ，结合Newmark积分方法逐步求解运动方程 ，对移动点荷载作用下温克勒地基上板的变形和应力响应进行了分析 。
Dynamic response of layered pavements subjected to dynamic loads is analyzed by using the three dimensional(3D) finite element method in conjunction with NEWMARK integration scheme.
应用三维有限元动力学的基本方法 ，结合Newmark积分方法逐步求解运动方程 ，对移动点荷载作用下温克勒地基上板的变形和应力响应进行了分析 。
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