Static and dynamic analysis of key structural components of the machine tool is the crucial
stage in transferring the physical to the virtual domain for digital manufacturing trends. The …

The selection of the contact force model plays a crucial role in the modeling and analysis of
dynamical systems. The seminal work by Hunt and Crossley, published in 1975, is one of …

In this work, a new dissipative contact force model, based on the foundation of Hertz contact
law, is presented for impact analysis in multibody dynamics. A hysteresis damping force is …

Ball screws are the driving component used to convert rotational motion to linear motion for
precision equipment and may be applied with the turning torque in practice. In past …

Ball passage vibration arising during recirculation of rolling elements is a limitation of high-
precision performance associated with ball screw. A relatively deep understanding of this …

A debris flow is a solid–liquid two-phase flow; the composition and gradation of the particles
within have a significant influence on its impact force. This paper proposes a new method for …

以Hertz 接触理论为基础, 考虑结构的弹塑性特性, 给出泥石流大块石冲击力的计算方法.
采用Thornton 假设, 即材料为理想弹塑性体, 对Hertz 接触理论进行弹塑性修正 …

Condition monitoring and fault diagnosis on electromechanical actuators (EMAs) have
gradually become a research hotspot in the field of aviation, but few studies have examined …

采用最优拉丁方试验设计方法进行样本数据设计, 同时, 为了提高计算效率,
采用了一种新型的响应面构建方法——逐步回归响应面方法构建了整车耐撞性与白车身自由模 …

In the process of top coal caving mining, the metal sheet of the tail beam of the hydraulic
support will vibrate when coal and rock particles start to impact the tail beam. In the impact …