查看更多>>摘要：A flow of silicon fluid in the gap between eccentric cylinders was studied experimentally.The condition of gaseous cavitation inception during the rotation of internal cylinder was considered.It was shown that at reduction of the gap between cylinders Saffman-Taylor instability appeared on surface of the internal cylinder and then gaseous cavitation was observed.Possibility of one uniform gas formation appearance under this type of instability was demonstrated.
查看更多>>摘要：This study investigates the effect of contact surface curvatures on the friction response under varying tangential loadings using a finite element(FE)model.The results showed that the geometry of the surface influences the contact force at the interface and reduces the friction effect through an unsteady distribution of the contact force.The relationship between the friction effect,excitation,and contact surface shape was also examined,revealing a linear inverse relationship between the friction and curvature.The findings provide a comprehensive understanding of the frictional interactions between elastic bodies and highlight the role of curvature as a design parameter for regulating the friction effect.
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