Extract the theoretical rotation angle of the driving wheel within 0.17s-0.175s of the stable stage of the spur gear pair at different rotational speeds θ 1b and the actual rotation angle of the driven wheel θ 2a. Calculate and draw the dynamic transmission error curve of the spur gear pair based on the formula, as shown in the figure.
According to the dynamic transmission error curve, when the rotational speed is n, 1.5n, and 2n, the dynamic transmission error fluctuation of spur gear pair meshing is 24.3 respectively μ m、28.9 μ M and 21.6 μ m. However, when the spur gear pair is at a resonant rotational speed of 0.56n, the dynamic transmission error fluctuation of the spur gear pair increases sharply, reaching 59.24 μ m。