求助:有没有用simulink解过这样的方程组

feijuan1119

用simlink搭建模型解微分方程组,其中I,h,可均为常数,T为数组,在选择定步长求解时,总出现一下问题:
Derivative input 1 of 'singlecylinderc/Integrator2' at time 27.75 is Inf or NaN.  Stopping simulation.  There may be a singularity in the solution.  If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)
选择变步长后,结果与理想值相差很大
不知道各位有没有做过这方面的,能否指点一下,不胜感激!