Wear Simulation for Internal Cylinder Contact in Rolling-Slip Mode

The application of the wheel used in super-high speed point (SHSP) grinding is introduced in detail, depicting the applied rang of the wheel, through designing the wheel body and the layer of CBN in the wheel. The designed principle is inferred according to the specific shape, the grinding productivity is analyzed in the course grinding zone and the finished grinding zone, introducing the angle of course grinding zone, which affects the grinding parameters in SHSP grinding, the value of the angle is designed to be suited to the point grinding, and manufacturing the wheel, introducing the changed state of chip flowing grinding used in the new wheel, the micro-surface of the wheel is observed through microscope, whose the ratio of air hole and the layer of CBN are analyzed, simulating the wear trend of the new wheel, the conclusions about super hard abrasives and wearing are drawn at last, the application of SHSP grinding is related to designing and manufacturing of the wheel, which provides the equipment for realizing high precision and productivity processing and offers the referred basis for the theoretical research.

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A new fatigue wear simulation method for road tyre wear

Constitutive Models for Rubber IX ◽

10.1201/b18701-25 ◽

2015 ◽

pp. 139-142

Keyword(s):

Simulation Method ◽

Wear Simulation ◽

Fatigue Wear ◽

Tyre Wear

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Fretting wear simulation in model studies

Advances in Mechanics: Theoretical, Computational and Interdisciplinary Issues ◽

10.1201/b20057-48 ◽

2016 ◽

pp. 217-220

Author(s):

S Guzowski ◽

M Michnej

Keyword(s):

Fretting Wear ◽

Wear Simulation ◽

Model Studies

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Intracellular coupling modulates biflagellar synchrony

Journal of The Royal Society Interface ◽

10.1098/rsif.2020.0660 ◽

2021 ◽

Vol 18 (174) ◽

pp. 20200660

Author(s):

Hanliang Guo ◽

Yi Man ◽

Kirsty Y. Wan ◽

Eva Kanso

Keyword(s):

Mathematical Models ◽

Activity Level ◽

Live Cells ◽

Basal Bodies ◽

Slip Mode ◽

Biological Parameters ◽

Hydrodynamic Coupling ◽

Dimensionless Ratio ◽

The Individual

Beating flagella exhibit a variety of synchronization modes. This synchrony has long been attributed to hydrodynamic coupling between the flagella. However, recent work with flagellated algae indicates that a mechanism internal to the cell, through the contractile fibres connecting the flagella basal bodies, must be at play to actively modulate flagellar synchrony. Exactly how basal coupling mediates flagellar coordination remains unclear. Here, we examine the role of basal coupling in the synchronization of the model biflagellate Chlamydomonas reinhardtii using a series of mathematical models of decreasing levels of complexity. We report that basal coupling is sufficient to achieve inphase, antiphase and bistable synchrony, even in the absence of hydrodynamic coupling and flagellar compliance. These modes can be reached by modulating the activity level of the individual flagella or the strength of the basal coupling. We observe a slip mode when allowing for differential flagellar activity, just as in experiments with live cells. We introduce a dimensionless ratio of flagellar activity to basal coupling that is predictive of the mode of synchrony. This ratio allows us to query biological parameters which are not yet directly measurable experimentally. Our work shows a concrete route for cells to actively control the synchronization of their flagella.

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