Method for determining magnetic force of two permanent magnets with right-triangle sections

The invention discloses a method for determining the magnetic force of two permanent magnets with right-triangle sections. A magnetic force analyzing model of two parallel right-triangle permanent magnets is constructed and is suitable for four different layout manners, and the analyzing model is that FZ=-BrlBr2L*10-6/piMu0*[+/-phi(y, M, N)], wherein Mu0 is air permeability, Mu0=4pi*10-7H/m, and Br1 and Br2 are the remanence induction intensity of the two right-triangle permanent magnets respectively. L is the longitudinal length of the pair of permanent magnets with the right-triangle sections and corresponds to four structures, and m, G, W and X-axis direction magnetic force Fx of the two permanent magnets can be obtained respectively. According to the method for determining the magnetic force of the two permanent magnets with the right-triangle sections, the problems that only a numerical algorithm exists in the existing calculation of permanent magnet guide rail magnetic force, the workload of calculation is too large, and the design and optimization of a permanent magnet guide rail are not convenient are solved.