![]() ![]() ![]() Coefficient of (static) Friction titanium-titanium: 0.36 Density of titanium (mean value): d = 4.51 g/cm3 Volume of the white plate: V = 4.11 cm3 Surface of contact in the starting position (as in the picture): A = 2.74 cm2 The difference with respect to the classical case is the curved profile of the contact surfaces. Obviously the two plates have the same constant radius of curvature R and the resulting movement is a slide along a lateral direction, as shown in this second figure: This movement is achieved by a worm drive mechanism (not drawn): thanks to the hole in the grey plate, a worm is in contact with a corresponding gear profile fixed to the lower surface of the white plate. The grey plate is fixed and the white plate slides on it. ![]() I have two titanium plates whose dimensions (in millimeters) are shown in the image below here: ![]() Although, I don't know if it represents the good approach to my problem and I would like to know your opinion about that. I know that the classic formula of friction doesn't take into consideration the dimension of the contact surfaces even if it sounds a bit strange to me, I accept this concept. I would like to calculate the friction force between two curved surfaces. ![]()
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