Curved surface topography prediction method for abrasive belt grinding screw rod

The invention relates to a curved surface topography prediction method for an abrasive belt grinding screw rod. The curved surface topography prediction method comprises the following steps of representing abrasive particles on the surface of an abrasive belt by utilizing a three-dimensional cone mathematical expression, and obtaining an abrasive particle height matrix H according to a Rayleigh distribution function; obtaining an abrasive particle position matrix B by applying normal distribution according to the coordinate positions of the abrasive particles and the model of the abrasive belt; generating an abrasive belt surface topography graph according to the abrasive particle height matrix H and the abrasive particle position matrix B; obtaining the grinding depth a of each abrasive particle according to a single-particle grinding depth a model of the abrasive belt surface topography graph and grinding parameters, and obtaining an abrasive particle exposure height matrix H