Abaqus solves problems

[han_cyuan]

I am currently building a single degree of freedom vehicle. The top is a rigid mass connected to a wheel by a spring, and the density of the wheel is zero.
I first added a gravity term so that the car could run on the bridge. After reading the acceleration on the spring and adding an inertial force on the mass block, it failed during the analysis.
Time increment required is less than the minimum specified The analysis has been terminated due to previous errors. All output requests have been written for the last converged increment.
I would like to ask you how to solve it?

 

[FEA way]

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