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This paper presents a nonlinear viscoelastic methodology for modelling probe–surface interactions and so explores the signal fidelity in stylus based surface metrology. A novel model is introduced to simulate the nonlinear contact behaviour between the stylus tip and the measured surface. After briefly describing existing models of contact between solid bodies, a modified nonlinear viscoelastic contact...
This paper presents dynamic modeling and vibration analysis methodologies for investigating surface profile fidelity in stylus instruments, using a novel dynamic model that takes account of Hertzian contact stiffness between the stylus tip and surface. It briefly describes generation methods for modelling random surfaces and finite tips, which provide input for this nonlinear dynamic system. The influence...
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