Stiffness model of machine tool supports using contact stiffness

A method for stiffness tuning of machine tool supports considering contact stiffness

A methodology for tuning the stiffness of machine tool supports is described based on a stiffness model using the contact stiffness approach. Using this model, the mathematical relationship between the load of the support and its stiffness is established. The relationship is separated into three regions. When the total stiffness of all supports is maximized, the load must be tuned so that the s...

Sliding Friction Contact Stiffness Model of Involute Arc Cylindrical Gear Based on Fractal Theory

Gear’s normal contact stiffness played an important role in the mechanical equipment. In this paper, the M-B fractal model is modified and the contact surface coefficient is put forward to set up the fractal model, considering the influence of friction, which could be used to calculate accurately the involute arc cylindrical gears’ normal contact stiffness based on the fractal theory and Hertz ...

THE MODEL UPDATING OF MASS, DAMPING AND STIFFNESS MATRICES

Contact stiffness of randomly rough surfaces

We investigate the contact stiffness of an elastic half-space and a rigid indenter with randomly rough surface having a power spectrum C2D(q)proportional q(-2H-2), where q is the wave vector. The range of H[symbol: see text] is studied covering a wide range of roughness types from white noise to smooth single asperities. At low forces, the contact stiffness is in all cases a power law function ...

the model updating of mass, damping and stiffness matrices

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