Recent content by hmoein

Hi drMs suppose that the moving sphere is in contact with th efixed one at one contact point. is the rotattion about the z axis (axis that is perpendicular to the contact surface and pass through center of sphere ) rolling?

thank you very much

hi drMs thanks for your answer. i don't understand about \\time e_{r}. and what is difference between \\phi and \\omega? could you expalin more? best regard hossein

hi thanks for your answer. no i search about parallel robot with higher pairs infact. the contac surfaces are sphere and rolling on each other

hi are every one know about parallel robot with rolling pairs for example one sphere rolling pn the fixed sphere. my quastion is the application of this structure. tnx hossein

thanks

hi , every one! I have a problem with a sphere rolling on a fixed sphere. My problem is to find relationship between coordinate of center of sphere (X,Y,Z) and orientations (alpha, beta, gamma) or Euler angles of sphere. as we know a sphere has 6 DOF in space (3 coordiantes and 3 rotation) when...

hi , every one! I have a problem with a sphere rolling on a fixed sphere. My problem is to find relationship between coordinate of center of sphere (X,Y,Z) and orientations (alpha, beta, gamma) or Euler angles of sphere. as we know a sphere has 6 DOF in space (3 coordiantes and 3 rotation) when...