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There has been much research offering theoretical explanations of rolling behavior considering the effect of adhesion, which is essential when the object is small. However, there has been a shortage of experimental verifications because objects are too small to manipulate and observe directly. This study measured the moment and observed the contact...
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Citations
... Despite being able to explain certain phenomena, Coulomb's formula remains a subject of controversy [4]. Currently, researchers have put forward various mechanisms to explain rolling friction including micro-sliding friction on contact surfaces [5], nonlinear deformation of contact solids [6,7], viscous hysteresis [8][9][10][11][12][13], and surface adhesion [14]. The viscous hysteresis mechanism is widely employed to elucidate energy dissipation in rolling contact. ...
... Constraints are applied to this point so that the pipe can only move along the There is the rolling resistance F f r between the pipe and the roller wheel, which encompasses both the viscoelastic loss of rubber material and the surface friction loss. Previous studies [8][9][10][11][12][13] have shown that Formula (14) can be used to calculate rolling resistance. ...
The installation of pipes in tunnel construction using the external welding method requires the assistance of a pipe pusher and roller support to push the welded pipe into the tunnel. Accurate determination of pipeline push resistance and the selection of an appropriate pipe pusher model are crucial factors for successful construction. Currently, there is no effective method available for predicting push resistance, which may result in inaccurate estimation and inadequate thrust provided by the selected pipe pusher. Therefore, this study aims to establish a reliable formula for calculating push resistance through theoretical analysis and numerical simulation. Additionally, we investigate the rolling resistance coefficient between the pipe and roller wheel to develop a corresponding prediction formula. Finally, a test platform is set up to validate our proposed formula for estimating push resistance. The results demonstrate that there is approximately a 5% error between the calculated values and the test values, confirming that this method effectively predicts pipeline push resistance.
... In literature, a variety of rolling friction mechanisms have been suggested [5], including micro-slip friction on the contact surface [4,6], nonlinear deformation of the contact solids [7,8], viscous hysteresis [9][10][11][12][13][14], surface adhesion [15][16][17][18], and so on. Among them, the viscous hysteresis mechanism has been widely applied to explain the energy dissipation in rolling contact. ...
... However, Dominik [15], Krijt and Dominik [16] and Zhang et al. [43] argued that the rolling resistance of a sphere is related to the radius of the sphere, that is, the larger the radius, the greater the rolling resistance. Nevertheless, Saito et al. [17,18] suggest that the rolling torque of the cylinder can be simply expressed as the product of the adhesion work and the cylinder radius, and has nothing to do with the normal load and Young's modulus of the material. We herein based on the proposed adhesion model to analyze the effects of various factors (e.g. ...