The critical grinding depth of ductile-brittle transition is an important processing parameter to
guarantee brittle materials machining in ductile mode. Nevertheless, it is a difficult task to …

With the increase in the number of underground structures, it is common to encounter
reinforced concrete (RC) pile foundations of existing buildings or bridges during shield …

The existing studies of nonlinear vibration of elastic structures are usually focused on
straight structures with homogeneous linear boundaries. Differently, this paper investigates …

In this article, an integrated model with spatially distributed inertia and general boundary
conditions for the axial-torsional dynamics of a drill string is developed and studied. Based …

The aerostatic spindle is widely used in the field of precision grinding because of its
excellent machining stability and machining accuracy. The spindle is jointly affected by …

We develop a dynamic model of a drill-string in a horizontal well having six Degrees-Of-
Freedom, which accounts for longitudinal, lateral and torsional motions. In this model …

The generalized lumped-parameter model of the drill-string system is studied in this paper to
provide a fundamental understanding of the torsional stick-slip vibrations in downhole …

Trimming of cantilever thin-walled structures is commonly seen in aerospace industry,
including trimming of blades. Trimming with helix angle tools can cause the vibration of the …

Chatter is a serious problem in grinding, which will directly affect machining accuracy,
efficiency, tool wear and even damage machine tools. In order to understand and avoid …

In this paper, a comprehensive continuous Cosserat rod model is developed to study the
dynamics of a drill-string. The model presents the following features:(1) it can simulate the 3 …