Tuning of frictional properties in torsional contact by means of disk grading

作     者：Gianluca COSTAGLIOLA Federico BOSIA Nicola M PUGNO Gianluca COSTAGLIOLA;Federico BOSIA;Nicola M PUGNO

作者机构：Civil Engineering InstituteEcole Polytechmique Federale de LausamneLausanne 1015Switzerland Department ofApplied Science and TechnologyPolitecnico di TorinoCorso Duca degli Abruzzi 24Torino 10129Italy Laboratoryfor BioinspiredBionicNanoMeta Materials&MechanicsDepartment of CivilEnvironmental and Mechanical EngineeringUniversity of TrentoTrento 38123Italy School of Engineering and Materials ScienceQueen Mary University of LondonLondon EI 4NSUK 

出 版 物：《Friction》 (摩擦（英文版）)

年 卷 期：2022年第10卷第5期

页      面：787-802页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

基　　金：Horizon 2020 Framework Programme  H2020  (863179) 

主　　题：friction torsion numerical simulations grading 

摘      要：The contact of two surfaces in relative rotating motion occurs in many practical applications,from mechanical devices to human joints,displaying an intriguing interplay of effects at the onset of sliding due to the axisymmetric stress *** and numerical models have been developed for some typical configurations,but work remains to be done to understand how to modify the emergent friction properties in this *** this paper,we extend the two-dimensional(2D)spring-block model to investigate friction between surfaces in torsional *** investigate how the model describes the behavior of an elastic surface slowly rotating over a rigid substrate,comparing results with analytical calculations based on energy *** show that an appropriate grading of the tribological properties of the surface can be used to avoid a non-uniform transition to sliding due to the axisymmetric configuration.