LS-DYNA求解器,出現時間步問題?
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各位大佬,LS-DYNA求解器的CESE模塊,出現這個問題The LS-DYNA time step size should not exceed 1.026E-06 to avoid contact instabilities. If the step size is bigger then scale the penalty of the offending surface.也沒報錯就卡住不動了。
我的時間步設置為5e-7。造成這個問題的原因都有哪些?
CE/SE - State Variables
DOF ID Variable
====== ========================
1 Density
2 X-Momentum
3 Y-Momentum
4 Z-Momentum
5 Total Energy
& 0 Species Fractions
input of data is completed
initial kinetic energy = 0.00000000E+00
*** Warning 30131 (INI+131)
total number of massless nodes = 98
total nodal rigid body mass= 1.0928648E-04
The LS-DYNA time step size should not exceed 1.025E-06
to avoid contact instabilities. If the step size is
bigger then scale the penalty of the offending surface.
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